Orifice Center of Head

Written by Jerry Ratzlaff on . Posted in Flow Instrument

orifice liquid 1Orifice center of head formula

\(\large{ h =  \frac{   \left (  \frac{ Q }{ C_d \; A_o } \right) ^2  }{ 2 \; G  }   }\)   

Where:

 Units English Metric
\(\large{ h }\) = orifice center of head \(\large{ in }\) \(\large{ mm }\)
\(\large{ A_o }\) = orifice area \(\large{ in^2 }\) \(\large{ mm^2 }\)
\(\large{ C_d  }\) = orifice discharge coefficient \(\large{ dimensionless }\)  
\(\large{ Q }\) = orifice flow rate \(\large{\frac{ft^3}{sec}}\) \(\large{\frac{m^3}{s}}\)
\(\large{ G }\) = orifice gravitational constant \(\large{\frac{lbf-ft^2}{lbm^2}}\)  \(\large{\frac{N - m^2}{kg^2}}\) 

 

 

Tags: Equations for Orifice and Nozzle