[Abdullah Elyas]

I have to do CFD analysis on MVG's on NACA 0015 wing and then I have to compare results with that of wing with no MVG. I have done the wing with no MVG.......but I am unable to capture the flow physics around MVG's .I have very limited computational resources ..I am using corei5 2.5 GHZ processor with 8 GB of RAM .around 3 million grid size is the upper limit.
What I have studied so far is that models that I can apply in this case are.
1) SA (y+= <3 ,30-300)
2) KW (y+~1)

other models like RSM and LES are just out of question because I can not resolve under y+1 with the present resources.

Currently I am working on a segment of wing with a pair of MVG's and I am using SA model. I am using ICEM for meshing and have made unstructured mesh around the geometry........and structured mesh in the rest of the domain.By that I can only achieve y+ around 100-200.With current configuration I am getting the flow separation even earlier than the simple wing case at 15 degree.Re 2.5 * 10^6

My question is

1)Is SA model capable of modeling MVG's.
2)Refinemet in ICEM to get y+1 with minimum possible grid size.I have tried to make a prism layer around the wing geometry but it gives worst quality due to the irregular geometry near MVG.So I am using tetrahedra to capture the boundary layer effects
3)What I can do with the present resources to capture the basic flow phyiscs around MVG....and what I can do in post processing to analyze flow physics around MVG and to see the vortex structures...


I need urgent help....I am only left with a month to present my Analysis.

Thanks