Validation test for 2d euler equations in subsonic regime with canonical squares
 

Hi.
Is there any test case(problem) for validation of 2d euler equations(subsonic: without discontinuities), which can be mesh with only canonical squares?

I know ,for this purpose, only the isentropic vortex problem but is good problem for spatial validation? If yes is there any paper which do validation at all spatial order of accuracy with this problem?

Thanks

Can one write for this subject?
It would be good for all!

Why not try a manufactured solution approach? just pick a sine wave in time and space, shove it through your domain (diagonally, to rule out any errors in x and y) and check the order of convergence.

All you need to do is add a simple source term to your code, that's the easiest method, plus it is watertight :)

Cheers!