N-S equations in Jasak's thesis. -- CFD Online Discussion Forums

July 2, 2013, 05:38

N-S equations in Jasak's thesis.

sharonyue

Senior Member

Dongyue Li

Join Date: Jun 2012

Location: Beijing, China

Posts: 838

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Hi,

In page.143. Its momentum equation is:see the image.

But should it be devided by rho in the gradient of pressure term?

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July 2, 2013, 05:47		#2
simt Member Join Date: Apr 2013 Posts: 32 Rep Power: 13	Yes, the pressure gradient should be divided by the density unless p is defined as in e.g simpleFoam where p = pressure/rho sharonyue and ScarFace like this.

July 2, 2013, 14:18		#3
cfdonline2mohsen Senior Member Mohsen KiaMansouri Join Date: Jan 2010 Location: CFD Lab Posts: 118 Rep Power: 16	Dear Forrest see the following post: http://www.cfd-online.com/Forums/ope...equations.html sharonyue and ScarFace like this. __________________ “If you have an apple and I have an apple and we exchange these apples then you and I will still each have one apple. But if you have an idea and I have an idea and we exchange these ideas, then each of us will have two ideas.”

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