engineering recuitment Vizag Steel MT Mechanical 2020 Test Series Fluid Mechanics Laminar Flow Laminar Flow through Pipe
The shear stress distribution in a pipe flow is expressed by:
1
\(\tau = \frac{1}{r}\left( {\frac{{dp}}{{dx}}} \right)\)
2
\(\tau = -\frac{r}{2}\left( {\frac{{dp}}{{dx}}} \right)\)
3
\(\tau = -\frac{2}{r}\left( {\frac{{dp}}{{dx}}} \right)\)
4
\(\tau = -\frac{r^2}{L}\left( {\frac{{dp}}{{dx}}} \right)\)