when you create tour own case please take care of:
1- your mesh through editing blockMeshDict file
a- take care of factor of conversion to meter to get your dimensions right.
b- take care of the way you ordering points in hex deceleration because this order specifies direction of XYZ axis.
c- take care of number of cells in each direction because it specifies steps of calculation and plotting. ex: when you scope is the boundary...