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PDE General for Navier-Stokes equations
Posted 27 oct. 2011, 11:53 UTC−4 Fluid & Heat Version 4.2 1 Reply
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I have a question regarding defining different variables. So this is the case if I want to solve PDE general module using conservative forms of Euler equation I will have
U=[rho, rho*u,rho*v]
gamma=[rho*u rho*v
rho*u^2+p rho*u*v
rho*u*v rho*v^2+p]
as you can see I have a pressure term that I am not sure what should I do with it since I cannot express it as my conservative variables unless I define another set of equations for energy to solve Temperature and connect "rho", "T" to "P". Even in this case I need to have a relationship like the one that we have for ideal gas to solve this. Does anyone have any suggestions for my problem?
Bottom line how should I define my variables to solve something like Euler equation or to some extent Navier-Stokes equations with the General PDE module of COMSOL?
Cheers
Hello Nader Noroozi
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did u get a solution for this?
thank you