Boundary Layer Similarity Parameters Recall the non-dimensional parameters Reynolds Ratio of the inertia to the viscous forces of a fluid flow E≈p'2IL pVL=Re F uV/D Prandtl Ratio of the momentum to the thermal diffusivity in a fluid flow. Pr=CoMv k a For laminar boundary layers, 6 ≈Pr” 8u Where n is a positive exponent.Boundary Layer Similarity Parameters • Recall the non-dimensional parameters Reynolds # - Ratio of the inertia to the viscous forces of a fluid flow • Prandtl # Ratio of the momentum to the thermal dif usivity in a fluid flow. For laminar boundary layers, Where n is a positive exponent. L s l VL V L V L F F Re / / 2 2             k c p Pr n th  Pr  