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

panou · August 19, 2011, 15:16

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

panou · August 23, 2011, 14:05

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

cfdnewbie · August 24, 2011, 15:21

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!

August 19, 2011, 15:16	Validation test for 2d euler equations in subsonic regime with canonical squares	#1
panou New Member aaaaaaaaaaaaaa Join Date: Apr 2011 Posts: 23 Rep Power: 15	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

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August 23, 2011, 14:05		#2
panou New Member aaaaaaaaaaaaaa Join Date: Apr 2011 Posts: 23 Rep Power: 15	Can one write for this subject? It would be good for all!

August 24, 2011, 15:21		#3
cfdnewbie Senior Member cfdnewbie Join Date: Mar 2010 Posts: 557 Rep Power: 20	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!