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Old   September 14, 2007, 08:37
Default Compressible navier stokes
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Hi all

I need a correct equation for compressible NS I see the equations are different

The density in momentum equations are treated differently e.g:: rho*u1*du1/dx+rho*u1*du2/dy+....

but in another equation d(u1*rho)/dx+.....

Why they are different? Thanks in advance , Selim
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Old   October 1, 2007, 17:31
Default Re: Compressible navier stokes
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I guess you are refering to the convective term in the momentum equation?

If so, you can use the continuity equation to move from one formulation to the other..

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