BlockMesh Drill down challenge- openFOAM

Objective: Objective: To use the icoFOAM solver to simulate the flow through a backward-facing step. To create multiple meshes and compare the results obtained. Desired output How does the velocity magnitude profile change as a function of the mesh grading factor? Use factors, 0.2, 0.5,0.8 Measure the velocity profile at 0.085…