Lid driven cavity problem results not matching

suhas jain · December 15, 2013, 04:11

Hi everyone!!

I have solved unsteady 3D navier stokes equations using SIMPLE ..I have attached the code and also the screen shot of Re 1000 at steady state. Mostly the momentum residual is not decreasing with the iteration.

What might be the mistake?

Thanks in advance.

FMDenaro · December 15, 2013, 04:47

but you are running a steady 3d solver? Are you sure that yout 3D configuration has a physical steady solution?

suhas jain · December 15, 2013, 06:04

I am running unsteady solver for a longer physical time until it reaches steady state and am comparing it with OpenFOAM results for the same configuration. But momentum residuals are not decreasing, only mass residual is decreasing with iteration...

ibs · December 15, 2013, 17:53

Can u give me the mfile of your code? (Written in MATLAB code)

suhas jain · December 15, 2013, 23:03

I am very sorry I have written the program in C language. I have attached it above.

December 15, 2013, 06:04		#3
suhas jain New Member suhas jain suresh Join Date: Aug 2012 Location: Stanford, USA Posts: 27 Rep Power: 14	I am running unsteady solver for a longer physical time until it reaches steady state and am comparing it with OpenFOAM results for the same configuration. But momentum residuals are not decreasing, only mass residual is decreasing with iteration... __________________ Suhas Jain Graduate student, Stanford University suhas.jain2000@gmail.com

December 15, 2013, 23:03		#5
suhas jain New Member suhas jain suresh Join Date: Aug 2012 Location: Stanford, USA Posts: 27 Rep Power: 14	I am very sorry I have written the program in C language. I have attached it above. __________________ Suhas Jain Graduate student, Stanford University suhas.jain2000@gmail.com

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December 15, 2013, 04:47		#2
FMDenaro Senior Member Filippo Maria Denaro Join Date: Jul 2010 Posts: 6,896 Rep Power: 73	but you are running a steady 3d solver? Are you sure that yout 3D configuration has a physical steady solution?

December 15, 2013, 17:53		#4
ibs New Member ibti Join Date: Dec 2013 Posts: 2 Rep Power: 0	Can u give me the mfile of your code? (Written in MATLAB code)