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-   -   how to calculate the turbulent input parameters for boundary conditions? (http://www.cfd-online.com/Forums/fluent/117905-how-calculate-turbulent-input-parameters-boundary-conditions.html)

nvtrieu May 17, 2013 02:43

how to calculate the turbulent input parameters for boundary conditions?
 
Hi every ones,

I am doing simulation for 3D NACA 0012 wing.
I use 3 different tubulent models:
k-e realizable
k-w SST
SA
The boundary conditions are:
Velocity inlet
Pressure outlet
wall

My question is how to set the turbulent parameters for the input and output bcs such: k,e,I,L,...
I also want to calculate the lift and drag coefficient acting on the wing surface. But I am not sure about the reference values such: area, length. I set the reference area=chord*span and the reference length=chord. Is this right or wrong?

Thanks you

nvtrieu May 17, 2013 02:48

I want to compare with experimental data from NASA experiment. So, how can I know these turbulent conditions?


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