https://cfd-online.com/W/index.php?title=Introduction_to_CFD&feed=atom&action=historyIntroduction to CFD - Revision history2024-03-28T08:38:03ZRevision history for this page on the wikiMediaWiki 1.16.5https://cfd-online.com/W/index.php?title=Introduction_to_CFD&diff=16455&oldid=prevRichmancool: /* Where CFD scores */2013-01-08T06:50:07Z<p><span class="autocomment">Where CFD scores</span></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>There are various reasons why CFD is becoming popular, some of which are:</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>There are various reasons why CFD is becoming popular, some of which are:</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* CFD allows numerical simulation of fluid flows, results for which are available for study even after the <del class="diffchange diffchange-inline">anaylsis </del>is over. This is a big advantage over, say, wind tunnel testing where analysts have a shorter duration to perform flow measurements.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* CFD allows numerical simulation of fluid flows, results for which are available for study even after the <ins class="diffchange diffchange-inline">analysis </ins>is over. This is a big advantage over, say, wind tunnel testing where analysts have a shorter duration to perform flow measurements.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* CFD allows observation of flow properties without disturbing the flow itself, which is not always possible with conventional measuring instruments.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* CFD allows observation of flow properties without disturbing the flow itself, which is not always possible with conventional measuring instruments.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* CFD allows observation of flow properties at locations which may not be accessible to (or harmful for) measuring instruments. For example, inside a combustion chamber, or between turbine blades.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* CFD allows observation of flow properties at locations which may not be accessible to (or harmful for) measuring instruments. For example, inside a combustion chamber, or between turbine blades.</div></td></tr>
</table>Richmancoolhttps://cfd-online.com/W/index.php?title=Introduction_to_CFD&diff=13556&oldid=prevPeter: Reverted edits by AnneMüller (talk) to last revision by Miguelp242011-11-24T08:37:04Z<p>Reverted edits by <a href="/Wiki/Special:Contributions/AnneM%C3%BCller" title="Special:Contributions/AnneMüller">AnneMüller</a> (<a href="/W/index.php?title=User_talk:AnneM%C3%BCller&action=edit&redlink=1" class="new" title="User talk:AnneMüller (page does not exist)">talk</a>) to last revision by <a href="/W/index.php?title=User:Miguelp24&action=edit&redlink=1" class="new" title="User:Miguelp24 (page does not exist)">Miguelp24</a></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Computational Fluid Dynamics or CFD as it is popularly known, is used to generate flow simulations with the help of computers. CFD involves the solution of the governing laws of fluid dynamics [[Numerical methods | numerically]]. The complex set of partial differential equations are solved on in geometrical domain divided into small volumes, commonly known as a [[Meshing | mesh (or grid)]]. </p></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Computational Fluid Dynamics or CFD as it is popularly known, is used to generate flow simulations with the help of computers. CFD involves the solution of the governing laws of fluid dynamics [[Numerical methods | numerically]]. The complex set of partial differential equations are solved on in geometrical domain divided into small volumes, commonly known as a [[Meshing | mesh (or grid)]]. </p></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><p></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><p></div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>CFD has enabled us to understand the world in new ways. We can now see what it is like to be in a furnace, model how blood flows through our arteries and veins <del class="diffchange diffchange-inline"><span class="plainlinks">[http://www.truckaccidentlawyersource.com/ <span style="color:black;font-weight:normal; text-decoration:none!important; background:none!important; text-decoration:none;">truck accident lawyer</span>]</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>CFD has enabled us to understand the world in new ways. We can now see what it is like to be in a furnace, model how blood flows through our arteries and veins and even create virtual worlds. CFD enables analysts to simulate and understand fluid flows without the help of instruments for measuring various flow variables at desired locations. </p></div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>and even create virtual worlds. CFD enables analysts to simulate and understand fluid flows without the help of instruments for measuring various flow variables at desired locations. </p></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div></div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===Where CFD scores===</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===Where CFD scores===</div></td></tr>
</table>Peterhttps://cfd-online.com/W/index.php?title=Introduction_to_CFD&diff=13555&oldid=prevAnneMüller: /* What is CFD? */2011-11-24T01:53:55Z<p><span class="autocomment">What is CFD?</span></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Computational Fluid Dynamics or CFD as it is popularly known, is used to generate flow simulations with the help of computers. CFD involves the solution of the governing laws of fluid dynamics [[Numerical methods | numerically]]. The complex set of partial differential equations are solved on in geometrical domain divided into small volumes, commonly known as a [[Meshing | mesh (or grid)]]. </p></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Computational Fluid Dynamics or CFD as it is popularly known, is used to generate flow simulations with the help of computers. CFD involves the solution of the governing laws of fluid dynamics [[Numerical methods | numerically]]. The complex set of partial differential equations are solved on in geometrical domain divided into small volumes, commonly known as a [[Meshing | mesh (or grid)]]. </p></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><p></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><p></div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>CFD has enabled us to understand the world in new ways. We can now see what it is like to be in a furnace, model how blood flows through our arteries and veins and even create virtual worlds. CFD enables analysts to simulate and understand fluid flows without the help of instruments for measuring various flow variables at desired locations. </p></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>CFD has enabled us to understand the world in new ways. We can now see what it is like to be in a furnace, model how blood flows through our arteries and veins <ins class="diffchange diffchange-inline"><span class="plainlinks">[http://www.truckaccidentlawyersource.com/ <span style="color:black;font-weight:normal; text-decoration:none!important; background:none!important; text-decoration:none;">truck accident lawyer</span>]</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>and even create virtual worlds. CFD enables analysts to simulate and understand fluid flows without the help of instruments for measuring various flow variables at desired locations. </p></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===Where CFD scores===</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===Where CFD scores===</div></td></tr>
</table>AnneMüllerhttps://cfd-online.com/W/index.php?title=Introduction_to_CFD&diff=9948&oldid=prevMiguelp24: /* What is CFD? */2009-11-16T16:32:20Z<p><span class="autocomment">What is CFD?</span></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Computational Fluid Dynamics or CFD as it is popularly known, is used to generate flow simulations with the help of computers. CFD involves the solution of the governing laws of fluid dynamics [[Numerical methods | numerically]]. The complex set of partial differential equations are solved on in geometrical domain divided into small volumes, commonly known as a [[Meshing | mesh (or grid)]]. </p></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Computational Fluid Dynamics or CFD as it is popularly known, is used to generate flow simulations with the help of computers. CFD involves the solution of the governing laws of fluid dynamics [[Numerical methods | numerically]]. The complex set of partial differential equations are solved on in geometrical domain divided into small volumes, commonly known as a [[Meshing | mesh (or grid)]]. </p></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><p></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><p></div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>CFD has enabled us to understand the world in new ways. We can now see what it is like to be in a furnace, model how blood flows through our arteries and veins and even <del class="diffchange diffchange-inline">create to </del>create virtual worlds. CFD enables analysts to simulate and understand fluid flows without the help of instruments for measuring various flow variables at desired locations. </p></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>CFD has enabled us to understand the world in new ways. We can now see what it is like to be in a furnace, model how blood flows through our arteries and veins and even create virtual worlds. CFD enables analysts to simulate and understand fluid flows without the help of instruments for measuring various flow variables at desired locations. </p></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===Where CFD scores===</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===Where CFD scores===</div></td></tr>
</table>Miguelp24https://cfd-online.com/W/index.php?title=Introduction_to_CFD&diff=7457&oldid=prevVersi: /* What is CFD? */2007-05-24T06:56:32Z<p><span class="autocomment">What is CFD?</span></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===What is CFD?===</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===What is CFD?===</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><p>[[Fluid dynamics | Fluid dynamics]] is a field of <del class="diffchange diffchange-inline">engineering </del>which studies the physical laws governing the flow of fluids under various conditions. Great effort has gone into understanding the governing laws and the nature of fluids themselves, resulting in a complex yet theoretically strong field of research.</p></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><p>[[Fluid dynamics | Fluid dynamics]] is a field of <ins class="diffchange diffchange-inline">science </ins>which studies the physical laws governing the flow of fluids under various conditions. Great effort has gone into understanding the governing laws and the nature of fluids themselves, resulting in a complex yet theoretically strong field of research.</p></div></td></tr>
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</table>Versihttps://cfd-online.com/W/index.php?title=Introduction_to_CFD&diff=6452&oldid=prevJasond: /* What is CFD? */2006-10-23T17:13:26Z<p><span class="autocomment">What is CFD?</span></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><p></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><p></div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>Computational Fluid Dynamics or CFD as it is popularly known, is used to generate flow simulations with the help of computers. CFD involves the <del class="diffchange diffchange-inline">solutions </del>of governing laws of fluid dynamics [[Numerical methods | numerically]]. The complex set of partial differential equations are solved on <del class="diffchange diffchange-inline">a </del>geometrical <del class="diffchange diffchange-inline">problem </del>divided into small volumes, commonly known as [[<del class="diffchange diffchange-inline">Mesh generation </del>| mesh (or grid)]]. </p></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>Computational Fluid Dynamics or CFD as it is popularly known, is used to generate flow simulations with the help of computers. CFD involves the <ins class="diffchange diffchange-inline">solution </ins>of <ins class="diffchange diffchange-inline">the </ins>governing laws of fluid dynamics [[Numerical methods | numerically]]. The complex set of partial differential equations are solved on <ins class="diffchange diffchange-inline">in </ins>geometrical <ins class="diffchange diffchange-inline">domain </ins>divided into small volumes, commonly known as <ins class="diffchange diffchange-inline">a </ins>[[<ins class="diffchange diffchange-inline">Meshing </ins>| mesh (or grid)]]. </p></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><p></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><p></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>CFD has enabled us to understand the world in new ways. We can now see what it is like to be in a furnace, model how blood flows through our arteries and veins and even create to create virtual worlds. CFD enables analysts to simulate and understand fluid flows without the help of instruments for measuring various flow variables at desired locations. </p></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>CFD has enabled us to understand the world in new ways. We can now see what it is like to be in a furnace, model how blood flows through our arteries and veins and even create to create virtual worlds. CFD enables analysts to simulate and understand fluid flows without the help of instruments for measuring various flow variables at desired locations. </p></div></td></tr>
</table>Jasondhttps://cfd-online.com/W/index.php?title=Introduction_to_CFD&diff=5658&oldid=prevSkipy: /* Where CFD scores */2006-05-15T04:33:41Z<p><span class="autocomment">Where CFD scores</span></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* CFD allows observation of flow properties without disturbing the flow itself, which is not always possible with conventional measuring instruments.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* CFD allows observation of flow properties without disturbing the flow itself, which is not always possible with conventional measuring instruments.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* CFD allows observation of flow properties at locations which may not be accessible to (or harmful for) measuring instruments. For example, inside a combustion chamber, or between turbine blades.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* CFD allows observation of flow properties at locations which may not be accessible to (or harmful for) measuring instruments. For example, inside a combustion chamber, or between turbine blades.</div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* CFD can be used as a qualitative tool for discarding (or narrowing down the choices between), various designs. Designers and analysts can study prototypes numerically, and</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* CFD can be used as a qualitative tool for discarding (or narrowing down the choices between), various designs. Designers and analysts can study prototypes numerically, and then test by experimentation only those which show promise.</div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>then test by experimentation only those which show promise.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===What CFD is not===</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===What CFD is not===</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* CFD is not yet at the level where it can be blindly used by designers or analysts without a working knowledge of numerics involved.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* CFD is not yet at the level where it can be blindly used by designers or analysts without a working knowledge of numerics involved.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Despite the increasing speed of computation available, CFD has not yet matured to a level where it can be used for real time computation. Numerical analyses require significant time to be set up and performed.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Despite the increasing speed of computation available, CFD has not yet matured to a level where it can be used for real time computation. Numerical analyses require significant time to be set up and performed.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* CFD is still an aid to other analysis and experimental tools like wind tunnel testing, and is used in conjunction with them.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* CFD is still an aid to other analysis and experimental tools like wind tunnel testing, and is used in conjunction with them.</div></td></tr>
</table>Skipyhttps://cfd-online.com/W/index.php?title=Introduction_to_CFD&diff=5657&oldid=prevSkipy: /* What is CFD? */2006-05-15T04:32:33Z<p><span class="autocomment">What is CFD?</span></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Computational Fluid Dynamics or CFD as it is popularly known, is used to generate flow simulations with the help of computers. CFD involves the solutions of governing laws of fluid dynamics [[Numerical methods | numerically]]. The complex set of partial differential equations are solved on a geometrical problem divided into small volumes, commonly known as [[Mesh generation | mesh (or grid)]]. </p></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Computational Fluid Dynamics or CFD as it is popularly known, is used to generate flow simulations with the help of computers. CFD involves the solutions of governing laws of fluid dynamics [[Numerical methods | numerically]]. The complex set of partial differential equations are solved on a geometrical problem divided into small volumes, commonly known as [[Mesh generation | mesh (or grid)]]. </p></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><p></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><p></div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>CFD has enabled us to understand the world in new ways. We can now see what it is like to be in a furnace, model how blood flows through our arteries and veins and even create to create <del class="diffchange diffchange-inline">virtaul </del>worlds. CFD enables analysts to simulate and understand fluid flows without the help of instruments for measuring various flow variables at desired locations. </p></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>CFD has enabled us to understand the world in new ways. We can now see what it is like to be in a furnace, model how blood flows through our arteries and veins and even create to create <ins class="diffchange diffchange-inline">virtual </ins>worlds. CFD enables analysts to simulate and understand fluid flows without the help of instruments for measuring various flow variables at desired locations. </p></div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===Where CFD scores===</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===Where CFD scores===</div></td></tr>
</table>Skipyhttps://cfd-online.com/W/index.php?title=Introduction_to_CFD&diff=4512&oldid=prevTed: Cut first paragraph, cleanup2005-12-09T15:38:36Z<p>Cut first paragraph, cleanup</p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===What is CFD?===</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===What is CFD?===</div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;"><p>Using abacus to computers, we have certainly come a long way. It’s been more than two hundred thousand years since the first Homo sapiens-sapiens appeared on earth. Life has never been faster than that of the previous century. Man learned to fly. Then man learned to fly smarter. CFD certainly has played its part in it. </p></del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><p>[[Fluid dynamics | Fluid dynamics]] is a field of engineering which studies physical laws governing flow of fluids under various conditions. <del class="diffchange diffchange-inline">An extensive amount of </del>effort has gone into understanding the governing laws and the nature of fluids themselves, resulting in a complex yet theoretically strong field of research.</p></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><p>[[Fluid dynamics | Fluid dynamics]] is a field of engineering which studies <ins class="diffchange diffchange-inline">the </ins>physical laws governing <ins class="diffchange diffchange-inline">the </ins>flow of fluids under various conditions. <ins class="diffchange diffchange-inline"> Great </ins>effort has gone into understanding the governing laws and the nature of fluids themselves, resulting in a complex yet theoretically strong field of research.</p></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><p></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><p></div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>Computational Fluid Dynamics or CFD as <del class="diffchange diffchange-inline">its </del>popularly known <del class="diffchange diffchange-inline">as </del>is simulations <del class="diffchange diffchange-inline">of flows </del>with the help of computers. CFD involves <del class="diffchange diffchange-inline">solution </del>of governing laws of fluid dynamics [[Numerical methods | numerically]]. The complex set of partial differential equations are solved on a geometrical problem divided into small volumes, commonly known as [[Mesh generation | mesh (or grid)]]. </p></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>Computational Fluid Dynamics or CFD as <ins class="diffchange diffchange-inline">it is </ins>popularly known<ins class="diffchange diffchange-inline">, </ins>is <ins class="diffchange diffchange-inline">used to generate flow </ins>simulations with the help of computers. CFD involves <ins class="diffchange diffchange-inline">the solutions </ins>of governing laws of fluid dynamics [[Numerical methods | numerically]]. The complex set of partial differential equations are solved on a geometrical problem divided into small volumes, commonly known as [[Mesh generation | mesh (or grid)]]. </p></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><p></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><p></div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>CFD has enabled us to <del class="diffchange diffchange-inline">see </del>the world <del class="diffchange diffchange-inline">as never before</del>. <del class="diffchange diffchange-inline">It was never before possible to </del>see what <del class="diffchange diffchange-inline">its </del>like to be in a furnace<del class="diffchange diffchange-inline">. It was never before possible to see </del>how <del class="diffchange diffchange-inline">our </del>blood flows <del class="diffchange diffchange-inline">in </del>our arteries and veins<del class="diffchange diffchange-inline">. It was never before that we saw the possibility of a walk into computational never-land</del>. CFD enables analysts to simulate and understand fluid flows without the help of instruments for measuring various flow variables at desired locations. </p></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>CFD has enabled us to <ins class="diffchange diffchange-inline">understand </ins>the world <ins class="diffchange diffchange-inline">in new ways</ins>. <ins class="diffchange diffchange-inline">We can now </ins>see what <ins class="diffchange diffchange-inline">it is </ins>like to be in a furnace<ins class="diffchange diffchange-inline">, model </ins>how blood flows <ins class="diffchange diffchange-inline">through </ins>our arteries and veins <ins class="diffchange diffchange-inline">and even create to create virtaul worlds</ins>. CFD enables analysts to simulate and understand fluid flows without the help of instruments for measuring various flow variables at desired locations. </p></div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===Where CFD scores===</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===Where CFD scores===</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* CFD allows observation of flow properties without disturbing the flow itself, which is not always possible with conventional measuring instruments.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* CFD allows observation of flow properties without disturbing the flow itself, which is not always possible with conventional measuring instruments.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* CFD allows observation of flow properties at locations which may not be accessible to (or harmful for) measuring instruments. For example, inside a combustion chamber, or between turbine blades.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* CFD allows observation of flow properties at locations which may not be accessible to (or harmful for) measuring instruments. For example, inside a combustion chamber, or between turbine blades.</div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* CFD can be used as a qualitative tool for discarding (or narrowing down the choices between) various designs. Designers and analysts can study <del class="diffchange diffchange-inline">different </del>prototypes numerically and <del class="diffchange diffchange-inline">decide to experimentally </del>test only <del class="diffchange diffchange-inline">the ones </del>which show promise <del class="diffchange diffchange-inline">by numerical simulation</del>.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* CFD can be used as a qualitative tool for discarding (or narrowing down the choices between)<ins class="diffchange diffchange-inline">, </ins>various designs. Designers and analysts can study prototypes numerically<ins class="diffchange diffchange-inline">, </ins>and</div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div> </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">then </ins>test <ins class="diffchange diffchange-inline">by experimentation </ins>only <ins class="diffchange diffchange-inline">those </ins>which show promise.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===What CFD is not===</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===What CFD is not===</div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* CFD is not yet at the level where it can be blindly used by designers or analysts without working knowledge of numerics involved.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* CFD is not yet at the level where it can be blindly used by designers or analysts without <ins class="diffchange diffchange-inline">a </ins>working knowledge of numerics involved.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Despite the increasing speed of computation available, CFD has not yet matured to a level where it can be used for real time computation. Numerical analyses require significant time to be set up and performed.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Despite the increasing speed of computation available, CFD has not yet matured to a level where it can be used for real time computation. Numerical analyses require significant time to be set up and performed.</div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* CFD is still an aid to other analysis and experimental tools like wind tunnel testing and is used in conjunction with them.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* CFD is still an aid to other analysis and experimental tools like wind tunnel testing<ins class="diffchange diffchange-inline">, </ins>and is used in conjunction with them.</div></td></tr>
</table>Tedhttps://cfd-online.com/W/index.php?title=Introduction_to_CFD&diff=2723&oldid=prevZxaar at 10:00, 24 September 20052005-09-24T10:00:31Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===What is CFD?===</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===What is CFD?===</div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><p>Using abacus to computers, we have certainly come a long way. It’s been more than two hundred thousand years since the first Homo sapiens appeared on earth. Life has never been faster than that of the previous century. Man learned to fly. Then man learned to fly smarter. CFD certainly has played its part in it. </p></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><p>Using abacus to computers, we have certainly come a long way. It’s been more than two hundred thousand years since the first Homo <ins class="diffchange diffchange-inline">sapiens-</ins>sapiens appeared on earth. Life has never been faster than that of the previous century. Man learned to fly. Then man learned to fly smarter. CFD certainly has played its part in it. </p></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><p>[[Fluid dynamics | Fluid dynamics]] is a field of engineering which studies physical laws governing flow of fluids under various conditions. An extensive amount of effort has gone into understanding the governing laws and the nature of fluids themselves, resulting in a complex yet theoretically strong field of research.</p></div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div><p>[[Fluid dynamics | Fluid dynamics]] is a field of engineering which studies physical laws governing flow of fluids under various conditions. An extensive amount of effort has gone into understanding the governing laws and the nature of fluids themselves, resulting in a complex yet theoretically strong field of research.</p></div></td></tr>
</table>Zxaar