Orifice Center of Head
Orifice center of head formula |
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| \(\large{ h = \frac{ \left ( \frac{ Q }{ C_d \; A_o } \right) ^2 }{ 2 \; G } }\) | ||
Orifice Area - Solve for h\(\large{ h = \frac{ \left( \frac{ Q }{ A_o \; C_d } \right)^2 }{ 2 \; G } }\)
Orifice Area - Solve for Q\(\large{ Q = A_o \; C_d \; \sqrt{ 2 \; G \; h } }\)
Orifice Area - Solve for Ao\(\large{ A_0 = \frac{ Q }{ C_d \; \sqrt{ 2 \; G \; h } } }\)
Orifice Area - Solve for Cd\(\large{ C_d = \frac{ Q }{ A_o \; \sqrt{ 2 \; G \; h } } }\)
Orifice Area - Solve for G\(\large{ G = \frac{ \left( \frac{ Q }{ C_d \; A_o } \right)^2 }{ 2 \; h } }\)
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| Symbol | 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 | \(\large{\frac{lbf-ft^2}{lbm^2}}\) | \(\large{\frac{N - m^2}{kg^2}}\) |
