Boundary layer tripping

shammon · August 17, 2016, 23:07

Hello.

I'm simulating flow around a 6 to 1 prolate spheroid at incidence.
I'm trying to trip the boundary layer at x/L=0.2, to compare to experimental results w/ tripping.

Has anyone done tripping in Star-CCM+?
Would you suggest adding protusions to the geometry,
or is there a way to change flow solvers from laminar to turbulent flow at x/L=0.2?

Thanks in advance.

Sincerely,
Seyong.

fluid23 · August 18, 2016, 10:46

You will want to use the turbulence suppression model. Check out the help documentation under User Guide > Modeling Physics > Modeling Transition > Turbulence Suppression Model.

shammon · August 18, 2016, 11:06

Thanks! I should've searched more thoroughly.

Quote:

Originally Posted by MBdonCFD

You will want to use the turbulence suppression model. Check out the help documentation under User Guide > Modeling Physics > Modeling Transition > Turbulence Suppression Model.

August 17, 2016, 23:07	Boundary layer tripping	#1
shammon New Member say Join Date: Apr 2016 Location: Virginia Posts: 9 Rep Power: 10	Hello. I'm simulating flow around a 6 to 1 prolate spheroid at incidence. I'm trying to trip the boundary layer at x/L=0.2, to compare to experimental results w/ tripping. Has anyone done tripping in Star-CCM+? Would you suggest adding protusions to the geometry, or is there a way to change flow solvers from laminar to turbulent flow at x/L=0.2? Thanks in advance. Sincerely, Seyong.

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August 18, 2016, 10:46		#2
fluid23 Senior Member Matt Join Date: Aug 2014 Posts: 947 Rep Power: 17	You will want to use the turbulence suppression model. Check out the help documentation under User Guide > Modeling Physics > Modeling Transition > Turbulence Suppression Model.