Question

What are the values of coefficient a and c if velocity distribution in a laminar boundary layer on a flat plat is:

$f\left(n\right)=\frac{u}{U_0}=a+bn+c{n}^2+d{n}^{3}where,n=\frac{y}{\delta }$

• A. $\frac{1}{2}and1$
• B. 0 and 1
• C. $-\frac{1}{2}and0$
• D. 0 and 0

Answer 1

The correct option is D 0 and 0

Apply boundary condition,
a =0
$b=\frac{3}{2}c=0d=-\frac{1}{2}$