method of manufactured solutions for unsteady problem

James_CFD · January 23, 2013, 04:42

Hi all,
Is anyone familiar with the method of manufactured solutions? I using the method to evaluate my unsteady code. I needed to know if the code needs to be run for a long time.
Cheers!

cfdnewbie · January 23, 2013, 05:09

Not sure I'm getting your question. You chose a time-dependent function as a source, plug in it, evaluate the L2 norms at some time and then do the grid refinement...

arjun · January 23, 2013, 17:46

mail me your email, I will send you a paper and a note about how to do that in 3D. I recently was testing starccm against it. So have that paper i used.

cfdnewbie · January 24, 2013, 03:16

or just google "sandia labs report manufactured solution", they have done some extensive testing with this method. You will find it done regularly in journal papers about new discretization methods, and it is pretty easy to do.
no witchcraft!

Good luck!

January 23, 2013, 04:42	method of manufactured solutions for unsteady problem	#1
James_CFD New Member James Join Date: Jan 2013 Posts: 1 Rep Power: 0	Hi all, Is anyone familiar with the method of manufactured solutions? I using the method to evaluate my unsteady code. I needed to know if the code needs to be run for a long time. Cheers!

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January 23, 2013, 05:09		#2
cfdnewbie Senior Member cfdnewbie Join Date: Mar 2010 Posts: 557 Rep Power: 20	Not sure I'm getting your question. You chose a time-dependent function as a source, plug in it, evaluate the L2 norms at some time and then do the grid refinement...

January 23, 2013, 17:46		#3
arjun Senior Member Arjun Join Date: Mar 2009 Location: Nurenberg, Germany Posts: 1,286 Rep Power: 34	mail me your email, I will send you a paper and a note about how to do that in 3D. I recently was testing starccm against it. So have that paper i used.

January 24, 2013, 03:16		#4
cfdnewbie Senior Member cfdnewbie Join Date: Mar 2010 Posts: 557 Rep Power: 20	or just google "sandia labs report manufactured solution", they have done some extensive testing with this method. You will find it done regularly in journal papers about new discretization methods, and it is pretty easy to do. no witchcraft! Good luck!