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-   -   How to model incompressible flow? (http://www.cfd-online.com/Forums/fluent/35146-how-model-incompressible-flow.html)

luckyluke November 24, 2004 02:11

How to model incompressible flow?
 
How to model incompressible flow using Fluent code? I have select the "water" material for the fluid domain. Does anything else needed to be done?

ROOZBEH November 24, 2004 04:25

Re: How to model incompressible flow?
 
Hi; If you choose "constant" option for density in material panel, this means thay you assume an incompressible flow. best regards ROOZBEH

nabeel mohsin November 24, 2004 05:29

Re: How to model incompressible flow?
 
hi if you do not select energy equation i think it will also considered as nin compresible flow nabeel

Philipp Beierer November 26, 2004 02:28

Re: How to model incompressible flow?
 
Hello, the only way to model compressible liquids in 6.1 is by defining your own routine in a udf (enabling the energy equation doesn't help you since that solves the ideal gas law). Release 6.2 should tackle this problem better. You may also see older postings concerning this topic via the search function.

May I ask what kind of flow problem you are trying to solve?

Aris December 3, 2004 05:18

Re: How to model incompressible flow?
 
Ideal gases aren't compressible?

Philipp Beierer December 7, 2004 02:44

Re: How to model incompressible flow?
 
Sorry, but I don't understand your question. My comment was in respect to the original posting of 'luckyluke'. If I remember right, he/she has been selecting water as the fluid in question...


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