CFD validation

jntan · April 3, 2009, 17:07

I'm concerned about how to validate your CFD simulation. Here are some ways I know:
1. Compare simulation results with experimental/analytical results if available.
2. If no experimental/analytical results to compare with, run simulations with different mesh, models using explicit/implicit method,....and the results shall stay unchanged.
More suggestions?

NewtonKF · April 3, 2009, 17:33

Another way is to use the method of manufactured solutions like those proposed by Roache, P.J. (2002).

Good luck...

jntan · April 6, 2009, 13:52

Thanks for the reply. Actually I find a 'Bible' of CFD validation in
http://www.grc.nasa.gov/WWW/wind/val.../tutorial.html. and wanna share it here.

jugghead · April 6, 2009, 14:10

Derive the analytical solution for 3D Navier-Stokes equation and collect 1 Million $.

http://www.claymath.org/millennium/

sbaffini · April 7, 2009, 04:20

Actually, to win the prize, you "just" need to prove that strong solutions do not exists for any fixed time and Re number...which is more likely the case.

April 3, 2009, 17:07	CFD validation	#1
jntan New Member Jiannan Join Date: Mar 2009 Posts: 10 Rep Power: 17	I'm concerned about how to validate your CFD simulation. Here are some ways I know: 1. Compare simulation results with experimental/analytical results if available. 2. If no experimental/analytical results to compare with, run simulations with different mesh, models using explicit/implicit method,....and the results shall stay unchanged. More suggestions?

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April 3, 2009, 17:33		#2
NewtonKF Member Newton KF Join Date: Mar 2009 Posts: 36 Rep Power: 17	Another way is to use the method of manufactured solutions like those proposed by Roache, P.J. (2002). Good luck...

April 6, 2009, 13:52		#3
jntan New Member Jiannan Join Date: Mar 2009 Posts: 10 Rep Power: 17	Thanks for the reply. Actually I find a 'Bible' of CFD validation in http://www.grc.nasa.gov/WWW/wind/val.../tutorial.html. and wanna share it here.

April 6, 2009, 14:10		#4
jugghead New Member Join Date: Mar 2009 Posts: 27 Rep Power: 17	Derive the analytical solution for 3D Navier-Stokes equation and collect 1 Million $. http://www.claymath.org/millennium/

April 7, 2009, 04:20		#5
sbaffini Senior Member Paolo Lampitella Join Date: Mar 2009 Location: Italy Posts: 2,190 Blog Entries: 29 Rep Power: 39	Actually, to win the prize, you "just" need to prove that strong solutions do not exists for any fixed time and Re number...which is more likely the case.