Boundary condition "flow over a cylinder"
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Hi,
In this example the flow over a cylinder is modeled . The domain is 2 dimensional. The cylinder, which is perpendicular to the flow, is modeled as a circle and a rectangular flow domain is created around the cylinder. For this example, we will consider Air as the fluid medium. 1. Which solver is adequate in this case (tubForm, icoForm or simpleFoam)? 2. How could i chose an adaquate TimeStep to get resonnable CourantNumber during the Simulation My boundary conditions in 0/U looks like(IcoFoam) dimensions [0 1 1 0 0 0 0]; internalField uniform (1 0 0); boundaryField inlet { type fixedValue; value uniform (1 0 0); { outlet { type zeroGradient; } inlet { type fixedValue; value uniform (1.5 0 0); } cyl_wall { type fixedValue; value uniform (0 0 0); } wall { type symmetry; // I donīt no (noSlip) } frontAndBackPlanes { type empty; } p/U looks like inlet { type fixedValue; value uniform (0 0 0); { outlet { type fixedValue; value uniform 0; } inlet { type zeroGradient; } cyl_wall { type ............; // I donīt no } wall { type ............; // I donīt no } frontAndBackPlanes { type empty; } 3. What about fvScheme, fvSolution ? Please just help me to solve this Problem! Thanks 
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