Sir @Rob, I have tried various ways to refine the mesh along the jet but now my nozzle is canted (At some angle from horizontal axis) , main problem I face using biasing is that it gives biasing around wall but it also forces the same biasing in other domain where there is no wall effects at all, I then tried to use inflation method it is not working well around sharp corners and curvature.
Is it possible to create such 2D Mesh with clustering of cells in jet region at certain interval as shown in the image below ? (For 2D case, Sphere of Influence is invalid after using Multizone-Quad/Tri Meshing)