engineering recuitment HPCL Engineer Mock Test 2024 Fluid Mechanics Boundary Layer Theory Terms Associated with Boundary Layer
The velocity distribution in the boundary layer is given by \(\rm \frac{u}{U} = {\left( {\frac{y}{δ}} \right)^{1/7}}\)
\(\rm \left[ \begin{array}{l} u = \rm po{\mathop{\rm int}}\space velocity\space at\space distance\space y\\ \rm U = \rm free\space stream\space velocity\\ \rm δ = nominal\space thickness \end{array} \right]\)
What would be the displacement thickness(δ*)?
1
\(\frac{\delta}{5}\)
2
\(\frac{\delta}{6}\)
3
\(\frac{\delta}{7}\)
4
\(\frac{\delta}{8}\)