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August 21, 2013, 12:11 |
RMS P-vol . what does it refer to?
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#1 |
Senior Member
hamed
Join Date: Apr 2009
Posts: 148
Rep Power: 17 |
hi all
i don't know what does P-vol in RMS equation refer to? i know it is about continuity equation but what is the exact meaning? i also know it changes into RMS mass by changing the boundary conditions would you pleas help me figure it out? best regards |
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August 21, 2013, 18:38 |
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#2 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,819
Rep Power: 144 |
This is all explained in the CFX theory manual.
But I do not understand your question "I also know it changes into RMS mass by changing the boundary conditions". That does not make sense to me. |
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August 22, 2013, 01:14 |
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#3 |
Senior Member
hamed
Join Date: Apr 2009
Posts: 148
Rep Power: 17 |
i mean it is sometimes P-vol and sometimes P-mass.
i have the theory guide but i don't know where to look for it.i searched for P-vol equation but i didn't find anything. by the way thanks for your quick reply glenn. |
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August 22, 2013, 10:02 |
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#4 |
Senior Member
Bruno
Join Date: Mar 2009
Location: Brazil
Posts: 277
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It's P-vol when you are solving multiphase problems, P-mass otherwise.
On multiphase problems the continuity equation is re-written as a volume conservation equation, therefore P-vol (P is because it is used to return the Pressure - the manual has this covered). Additional conservation equations are solved for each phase, giving you the volume fraction. |
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August 22, 2013, 10:46 |
hi
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#5 |
New Member
mohammad
Join Date: May 2013
Posts: 10
Rep Power: 13 |
when you use segreted solution it is p-vol and when you are using coupled solutin it is p-mass in multiphase flows
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August 23, 2013, 02:14 |
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#6 | |
Senior Member
hamed
Join Date: Apr 2009
Posts: 148
Rep Power: 17 |
Quote:
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