Orifice Discharge Coefficient
Orifice discharge coefficient, abbreviated as \(C_d\), a dimensionless number, is the ratio of actual discharge to the theoretical discharge.
Orifice Discharge Coefficient formula |
||
\(\large{ C_d = \frac { Q } { A_o \; \sqrt { 2 \; G \; h } } }\) | ||
Symbol | English | Metric |
\(\large{ C_d }\) = orifice discharge coefficient | \(\large{ dimensionless }\) | |
\(\large{ A_o }\) = orifice area | \(\large{ in^2 }\) | \(\large{ mm^2 }\) |
\(\large{ h }\) = orifice center of head | \(\large{ in }\) | \(\large{ mm }\) |
\(\large{ Q }\) = orifice flow rate | \(\large{\frac{ft^3}{sec}}\) | \(\large{\frac{m^3}{s}}\) |
\(\large{ G }\) = orifice gravitational constant | \(\large{\frac{lbf-ft^2}{lbm^2}}\) | \(\large{\frac{N - m^2}{kg^2}}\) |