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• Flow around a circular cylinder
  ... in the details (both geometry and boundary conditions) that can be used. A typical geometry is shown below (not to scale). ...ulent flow. The DNS, LES, and the transitional cases are still considered a research cases. Many different numerical techniques have been used to solv
  6 KB (884 words) - 11:31, 8 April 2017

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• Main Page
  ...CFD-Wiki by using the [http://www.cfd-online.com/Tellafriend/wiki.php tell a friend] tool or [http://www.cfd-online.com/Marketing/wiki.php#linking linki The Baldwin-Lomax model is a classical algebraic turbulence model which is suitable for high-speed flows
  6 KB (823 words) - 21:52, 9 December 2017
• Codes
  ....eng.unimelb.edu.au/daltonh/downloads/arb/ arb homepage]||GMSH (.msh) || N/A | align="left" |[[CaNS]] -- [https://github.com/p-costa/CaNS CaNS homepage] a code for very fast massively-parallel DNS of canonical flows || || July 20
  25 KB (3,558 words) - 08:31, 23 January 2024
• Fluid dynamics
  ... and are called the [[Navier-Stokes equations]] which govern the motion of a viscous, heat conducting fluid. Various simplifications of these equations ...ourses/me111/pdf/poem-Naomi.pdf The Turbulent History of Fluid Mechanics], a poem by Naomi Tsafnat
  2 KB (205 words) - 10:17, 13 March 2013
• Source code archive
  ...n a zip or tar.gz file and [[Special:Upload|uploaded]] and linked to using a <nowiki>[[Media:filename.tar.gz]]</nowiki> link. ...(this is the default if you don't specify anything else) or released under a GPL copyleft license. See [[CFD-Wiki:Copyrights]] for more information.
  1 KB (203 words) - 17:39, 14 June 2012
• Reynolds number
  ...er characterises the relative importance of inertial and viscous forces in a flow. It is important in determining the state of the [[flow]], whether it ==Reynolds number as a ratio of time scales==
  3 KB (450 words) - 09:15, 3 January 2012
• Navier-Stokes equations
  ...id. It is a vector equation obtained by applying Newton's Law of Motion to a fluid element and is also called the ''momentum equation''. It is supplemen ...continuity equation (1), momentum equation (2) and energy equation (3) for a compressible fluid can be written as:
  29 KB (4,606 words) - 18:17, 28 August 2012
• Posdat.f
  POSDAT always receives a wealth of information about all the cells and these may be useful in creati It is a li'l difficult to understand what these mean. See the following pic:
  3 KB (540 words) - 12:13, 3 September 2011
• Introduction to turbulence
  ...l analysis/Estimation from a finite number of realizations|Estimation from a finite number of realizations]] ** [[Introduction to turbulence/Statistical analysis/Estimation from a finite number of realizations#Estimators for averaged quantities|Estimators
  8 KB (948 words) - 12:34, 15 March 2012
• Reynolds stress model (RSM)
  ...assical turbulence model. The method of closure employed is usually called a ''Second Order Closure''. This modelling approach originates from the works these turbulent components return to isotropy. Such a correlation is
  8 KB (1,203 words) - 01:47, 18 April 2017
• Near-wall treatment for k-omega models
  where <math>y</math> is the cell centroid distance from the wall. Using this a blending can take the following form: ...at the wall-adjacent cell should be on the order of '''y+ = 1'''. However, a higher y+ is acceptable as long as it is well inside the viscous sublayer (
  4 KB (581 words) - 10:40, 31 March 2021
• Favre averaging
  ...h>\widetilde{\Phi}</math> and a fluctuating part <math>\Phi''</math> using a density weighted average in the following way:
  1 KB (209 words) - 21:48, 26 August 2013
• Direct numerical simulation (DNS)
  A '''direct numerical simulation (DNS)''' is a simulation in computational fluid dynamics in which the [[Navier-Stokes equ To satisfy these resolution requirements, the number ''N'' of points along a given mesh direction with increments ''h'', must be
  4 KB (672 words) - 13:52, 25 July 2012
• Fluent FAQ
  ...e company that is now part of ANSYS Inc. Fluent (the software package) is a popular commercial CFD package. Gambit is a meshing software package that is typically purchased{{Fact}} with Fluent.
  39 KB (6,386 words) - 16:48, 26 April 2013
• Best practice guidelines
  ...rs. By sharing our experience about how to best perform a CFD analysis for a particular problem we can help each other and learn from each others mistak '''''If you miss a guide feel free to start it by adding a link to it from this page.'''''
  1 KB (189 words) - 19:11, 20 January 2012
• Best practice guidelines for turbomachinery CFD
  .... The intended audience is expected to know basic CFD terminology and have a basic turbomachinery knowledge, but no detailed knowledge about CFD for tur ...and what physical phenomena that affect the results. This chapter contains a brief overview of the various types of simulations and some hints of what c
  41 KB (6,252 words) - 08:46, 4 March 2023
• Baldwin-Lomax model
  ...ic 0-equation model which gives the eddy viscosity, <math>\mu_t</math>, as a function of the local boundary layer velocity profile. The model is suitabl l = k y \left( 1 - e^{\frac{-y^+}{A^+}} \right)
  8 KB (1,262 words) - 09:15, 3 January 2012
• Turbulence modeling
  ...ns. Virtually all engineering applications are turbulent and hence require a turbulence model. #### [[A roughness-dependent model]]
  3 KB (282 words) - 19:16, 10 April 2021
• Two equation turbulence models
  ...t equations to represent the turbulent properties of the flow. This allows a two equation model to account for history effects like convection and diffu Where <math>\mu_t</math> is a scalar property called the [[Eddy viscosity|eddy viscosity]] which is norma
  11 KB (1,667 words) - 20:52, 25 October 2016
• Introduction to turbulence/Nature of turbulence
  ...artistic forms. Subconsciously we find ourselves observing exhaust jets on a frosty day; we are willingly hypnotized by licking flames in an open hearth SONNET TO TURBULENCE by S. Corrsin <ref>Stan Corrsin was a famous and much beloved turbulence researcher and professor at the Johns Ho
  16 KB (2,597 words) - 21:12, 9 November 2016
• Ansys FAQ
  ==== My steady state solution converges for a while but stops converging before reaching my convergence criteria ==== Failure to obtain full convergence is a common issue for steady state simulations. It often occurs when doing mesh
  27 KB (4,461 words) - 02:03, 18 August 2018