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Compressible Euler equations

Posted 23 sept. 2022, 06:12 UTC−4 Fluid & Heat, Computational Fluid Dynamics (CFD) 0 Replies

Ruben D'Rose
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I want to model the 1D inviscid compressible Euler equations without using the predefined physics node.

I have three PDEs: - for density rho: - for velocity u: - for temperature T:

Using the EOS, the pressure term in the velocity equation can be rewritten into

Instead of using the Compressible Euler Equations node, I have added three General Form PDE nodes. Unfortunately, COMSOL throws the "Repeated error test failures. May have reached a singularity." error. What can be the cause of this?

0 Replies Last Post 23 sept. 2022, 06:12 UTC−4
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