
Dynamic pressure is defined as 0.5*rho*V*V, where rho is the density and V is velocity. At the walls, the noslip condition forces the velocity to zero, but if I plot the contours of dynamic pressure on the walls I see nonzero values. Can the correct dynamic pressure value be shown on the walls?
This is just a post processing issue. Dynamic pressure values are stored only at the cell centers. Hence, when you display surface dynamic pressure contours, you are in effect plotting values obtained from adjoining cells.
You can overcome this problem by defining a Custom Field function for the dynamic pressure: CFF = 0.5 * rho * V * V. Plotting the contours of the CFF with the Node Values option on should resolve the problem.

