Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

Compressible Euler equations

Please login with a confirmed email address before reporting spam

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 2022年9月23日 GMT-4 06:12
COMSOL Moderator

Hello Ruben D'Rose

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.