[nikesh]

Hi all,
I have simulated flatplate turbulent BL Flow in openFoam (simpleFOAM) using kOmegaSST model. But i am not getting results very close to the expt data of Weighardt's. Here I have attached uPlus-vs-yPlus curves and Cf distribution.
Can anything be said about where I should focus on to improve this result of mine?

I also ran another simulation using LaunderSharmaKE model which seemed to give rather better results. However my concern is towards achieving better results with SST model.

SCHEMES:
gradSchemes --> Gauss linear;
divSchemes --> Gauss upwind;
laplacianSchemes --> Gauss linear corrected;

SOLVERS:
p --> GAMG, GaussSeidel smoother
k,U,nut,omega --> smoothSolver, GaussSeidel smoother

SIMPLE algorithm

INITIAL CONDITIONS:

—U∞=34 m/s

—υ=1.45*10-5

—Turbulent intensity, I=1%

—k=(3/2)(U∞I)2 =0.1734 m2s-2

—ω=k/υT =1195.862 s-1 (assuming, υ/υT =0.1)

BOUNDARY CONDITIONS:

—Inflow

¡k -- fixedValueuniform 0.1734;

¡υT-- calculated uniform 0;

¡ω -- fixedValueuniform 1195.86;

¡p -- zeroGradient;

¡U – fixedValueuniform (34 0 0);

—Outflow

¡k – zeroGradient;

¡υT-- calculated uniform 0;

¡ω-- zeroGradient;

¡p -- zeroGradient;

¡U – zeroGradient;

flatplate

k – kqRWallFunction uniform 0;

υT-- nutWallFunction uniform 0;

ω–omegaWallFunction uniform 0;

p -- zeroGradient;

U – fixedValueuniform (0 0 0);

slipwall

k ,nuT, ω, p , U -- slip


Could anybody please guide me through or give me some suggestions that I could do to improve my results? I have been working on it for over a month already, yet without any success.



Thank you in advance!!