Orifice Flow Rate

Written by Jerry Ratzlaff on . Posted in Flow Instrument

Orifice Flow Rate

Orifice flow rate is the amount of fluid that flows in a given time.

Orifice Flow Rate Formula

\(Q =  C_d A_o \sqrt { 2Gh } \)           \( flow \; rate    \;=\;   discharge \; coefficient  \;\;x\;\;   orifice \; area  \;   \sqrt { \; 2  \;\;x\;\;  gravitational \; constant  \;\;x\;\;  center \; line \; head    }   \)

Where:

\(Q\) = flow rate

\(C_d\) = discharge coefficient

\(A_o\) = orifice area

\(G\) = gravitational constant

\(h\) = center line head

Solve for:

\(G =  \frac   {      \left (  \frac  { Q  }  {  C_d A_o  } \right) ^2     }  { 2H  }   \)

\(H =  \frac   {      \left (  \frac  { Q  }  {  C_d A_o  } \right) ^2     }  { 2G  }   \)

 

Tags: Equations for Flow Rate