# Wolf Dynamics - Multiphysics simulations, optimization, and data analytics

## OPENFOAM VALIDATION CASES

Three element high-lift airfoil - MDA 30P-30N

In this case, we compute the flow around the multi-element airfoil 30P-30N. The Reynolds number is 5 000 000, the airfoil's angle of attack is 0 degrees, we use the Spalart-Allmaras turbulence model, and we consider air as an incompressible flow.  We also compare the numerical results obtained with OpenFOAM-6, against the experimental results found in the literature.

AOA$$c_l$$ experimental$$c_l$$ OpenFOAMPercent Error (%)
$$0^{\circ}$$ 2.167089 2.237588 3.253205

AOA$$c_d$$ experimental$$c_d$$ OpenFOAMPercent Error (%)
$$0^{\circ}$$ 0.033243 0.034598 4.076435

warning  The experimental values were extracted from plots illustrated in the references below.
We can not guarantee the accuracy or precision of this information.

References:

Prediction of high lift: review of present CFD capability. Progress in Aerospace Sciences, 38:145-180. 2002.

Comparative results from a CFD challenge over a 2D three-element high-lift airfoil. NASA Technical Memorandum 112858.

Numerical study to assess sulfur hexafluoride as a medium for testing multi-element airfoils. NASA Technical Paper 3496.