Simulation

We’ll use incompressible stationary for this.

Copy from OpenFOAM tutorial directory: “tutorials/incompressible/simpleFoam/squareBend”.

Then modify to suit your needs. For example “U” boundary condition:

/--------------------------------- C++ -----------------------------------\
 | =========                 |                                                 |
 | \      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
 |  \    /   O peration     | Version:  v1812                                 |
 |   \  /    A nd           | Web:      www.OpenFOAM.com                      |
 |    \/     M anipulation  |                                                 |
 *---------------------------------------------------------------------------*/
 FoamFile
 {
     version     2.0;
     format      ascii;
     class       volVectorField;
     object      U;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 dimensions      [0 1 -1 0 0 0 0];
 internalField   uniform (0 0 0);
 boundaryField
 {
     #includeEtc "caseDicts/setConstraintTypes"
 inlet
 {
     type  fixedValue;
     value uniform (0 0 -10);
 }
 outlet
 {
     type            inletOutlet;
     inletValue      $internalField;
     value           $internalField;
 }
 "(?i).*Walls"
 {
     type            noSlip;
 }
 }
 // *** //