Pressure gradient

M10 · April 25, 2012, 12:28

Hi,

I'm running airfoil simulations and noticing that I'm not getting enough pressure gradient on the foil surface - thus weak/delayed stall + lower than expected drag on some cases. I'm running k-wSST at Re = 1e5.

Any good ideas or know parameters I can tinker with to solve the problem?

Thank you.
M.S.

ryancoe · April 26, 2012, 10:51

I would take a close look at your boundary layer mesh (overall thickness and y+ specifically) and see how it compares to published work of similar problems (lots of stuff out there).

Hope this helps.

April 25, 2012, 12:28	Pressure gradient	#1
M10 New Member Mio S Join Date: Oct 2011 Posts: 4 Rep Power: 3	Hi, I'm running airfoil simulations and noticing that I'm not getting enough pressure gradient on the foil surface - thus weak/delayed stall + lower than expected drag on some cases. I'm running k-wSST at Re = 1e5. Any good ideas or know parameters I can tinker with to solve the problem? Thank you. M.S.

April 26, 2012, 10:51		#2
ryancoe Member Ryan Coe Join Date: Jun 2010 Location: Blacksburg, VA Posts: 90 Rep Power: 4	I would take a close look at your boundary layer mesh (overall thickness and y+ specifically) and see how it compares to published work of similar problems (lots of stuff out there). Hope this helps. __________________ Ryan

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