Water Flow Rate Through an Orifice

on . Posted in Fluid Dynamics

   

orifice 1

Water Flow Rate Through an Orifice formula

\( Q_w = 0.0865 \; C_d \; ( d_o\;/\;4.654 )^2  \; \sqrt{  p_1 - p_2 \;/\; SG  } \) 
Symbol English Metric
\( Q_w \) = water flow rate \(ft^3\;/\;se\) \(m^3\;/\;s\)
\( d_o \) = diameter of orifice \( in \) \( mm \)
\( C_d \) = orifice discharge coefficient \(dimensionless\)
\( p_1 \) = primary pressure \(lbf\;/\;in^2\) \(Pa\)
\( p_2 \) = secondary pressure \(lbf\;/\;in^2\) \(Pa\)
\( SG \) = specific gravity of water \(dimensionless\)

 

P D Logo 1 

Tags: Flow Water Orifice and Nozzle