Error in simpleFoam
Cannot find patchField entry for back
file: /home/jeet/OpenFOAM/jeet-7/run/channel3d/0/p.boundaryField from line 25 to line 41.
Dear JeetKumar, The error is that you have not given a boundary condition for your boundary patch that you named "back" in your blockMeshDIct. To resolve this issue you have to define the boundary conditions for patch "back" in the p file and U file.