Question

Horizontal pipe of 250 mm diameter and 60mm long is connected to water tank at one end and discharges freely to atmosphere through other end and the height of water tank is 4.5 m above the centre of the pipe. Calculate the rate of flow of water consider friction is 0.008

Answer 1

$hf = 4 f L v ^2/ 2 g d$

$4.5 = 4*0.008*.06*v^2 /2*9.8.*.25$

$v=107.16m/s$

$q = \pi r^2 *v$

$=pi *.25^2 * 107.16$

$= 21.04 M^3/sec$