Results advice

luckyrob · August 18, 2014, 12:48

So I've managed to setup a wind tunnel simulation with a spoiler in it. Successfully meshed and setup the physics according to various tutorials within the software documentation.
Set up a Force Report in the negative z axis to give me a downforce reading however I never seem to get a nice steady plot like when I run the Adjoint Wing tutorial provided with the software. So my question is should I be expecting some fluctuations within the first 100 or so iterations and then for it to settle, or should it constantly fluctuate in and out of positive and negative readings like a really messy sine wave?

Any advice greatly appreciated.

fpalacios · September 5, 2014, 12:39

Quote:

Originally Posted by luckyrob

So I've managed to setup a wind tunnel simulation with a spoiler in it. Successfully meshed and setup the physics according to various tutorials within the software documentation.
Set up a Force Report in the negative z axis to give me a downforce reading however I never seem to get a nice steady plot like when I run the Adjoint Wing tutorial provided with the software. So my question is should I be expecting some fluctuations within the first 100 or so iterations and then for it to settle, or should it constantly fluctuate in and out of positive and negative readings like a really messy sine wave?

Any advice greatly appreciated.

Have you tried SU2 (su2.stanford.edu)?

Cheers,
Francisco

luckyrob · September 6, 2014, 08:15

I haven't.............if I continue to get poor results from Star CCM I was gonna try OpenFoam but I may try this too.

August 18, 2014, 12:48	Results advice	#1
luckyrob New Member Rob Join Date: Jul 2014 Posts: 16 Rep Power: 11	So I've managed to setup a wind tunnel simulation with a spoiler in it. Successfully meshed and setup the physics according to various tutorials within the software documentation. Set up a Force Report in the negative z axis to give me a downforce reading however I never seem to get a nice steady plot like when I run the Adjoint Wing tutorial provided with the software. So my question is should I be expecting some fluctuations within the first 100 or so iterations and then for it to settle, or should it constantly fluctuate in and out of positive and negative readings like a really messy sine wave? Any advice greatly appreciated.

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September 6, 2014, 08:15		#3
luckyrob New Member Rob Join Date: Jul 2014 Posts: 16 Rep Power: 11	I haven't.............if I continue to get poor results from Star CCM I was gonna try OpenFoam but I may try this too.