engineering recuitment BHEL Engineer Trainee Mock Test 2025 Fluid Mechanics Flow Through Pipes Friction Loss (Darcy Weisbach Equation)
According to Darcy's formula, the loss of head due to friction in the pipe is: Where
f = Darcy’s coefficient
l = length of pipe
v = velocity of liquid flow
d = diameter of pipe
1
\(\frac{{{\rm{f l}}{v^2}}}{{2{\rm{gd}}}}\;\)
2
\(\frac{{{\rm{fl}}{v^2}}}{{{\rm{gd}}}}\;\)
3
\(\frac{{{\rm{3fl}}{v^2}}}{{{\rm{2gd}}}}\;\)
4
\(\frac{{{\rm{4fl}}{v^2}}}{{{\rm{2gd}}}}\;\)