b'Figure 7. PIV results with the blunt plate located 25mm from the surface with no spray.Figure 8. PIV results with the blow-off nozzle at 45 psi with no spray.Figure 9. PIV results with the upstream-facing knife-edge located 25mm from the surface with no spray.Figure 10. PIV results with the cylindrical rod located 25mm from the surface with no spray.WORLD PULP&PAPER 81'