railway RRB JE (CBT I + CBT II) Mock Test 2024 Fluid Mechanics Laminar Flow Laminar Flow through Pipe
For laminar flow in a smooth pipe, the coefficient friction 'f' is given by:
(Re is the Reynold number.)
1
f = \(\rm\frac{6}{R e}\)
2
f = \(\rm\frac{10}{R e}\)
3
f = \(\rm\frac{12}{R e}\)
4
f = \(\rm\frac{16}{R e}\)