OPENFOAM LES of 3D airfoil and better accuracy (6-7%error) -- CFD Online Discussion Forums

July 9, 2021, 16:50	OPENFOAM LES of 3D airfoil and better accuracy (6-7%error)	#1
najiba.ae.mist@gmail.com New Member lam Join Date: Oct 2020 Posts: 9 Rep Power: 5	Hi, I am running LES simulation of a 3D airfoil (runtime to date is 3 sec) my domain is attached with some results , but the default LES gave about more tham 25% (cl from exp=1.142, les=1.5)error if compared to experimental data lift and drag. ANd also the mean field (Cf) graphs are with oscillations. I was simulating at low 500,000 Re and unit freestram velocity at higher AOA to capture the laminar separation bubble. gridscheme.PNG Cp_mean(b211.19).jpg Capture.PNG Any Advices I will appreciate Thanks.

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