*/ /

1/50 =2% of B.L.1/60 = 1.67% of B.L.

Let , then dy = d because = (x).

* (Displacement thickness)

Parabolic velocity profile

(Momentum thickness)

Parabolic velocity profile

Comparison*/ /

Linear1/2 = 50% of B.L.1/6 = 16.7% of B.L.

Sinusoidal1-2/ = 36.3% of B.L.-1/2+2/ = 13.7% of B.L.

Parabolic1/3 = 33.3% of B.L.2/15 = 13.3% of B.L.

*** Note: B.L. means "Boundary Layer."