Water Hammer Fluid Velocity Change
Water Hammer Fluid Velocity Change Formula |
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\(\large{ \Delta v = \frac { h_{spf} g } { \alpha } }\) (maximum surge pressure head) \(\large{ \Delta v = \frac{ 144 \;p_{spf} \; g }{ \alpha \; \gamma_f } }\) (maximum surge pressure for a fluid) \(\large{ \Delta v = \frac{ 2.31 \;p_{spw} \; g }{ \alpha } }\) (maximum surge pressure for a water) |
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| Symbol | English | Metric |
| \(\large{ \Delta v }\) = fluid velocity change | \(\large{\frac{ft}{sec}}\) | \(\large{\frac{m}{s}}\) |
| \(\large{ g }\) = gravitational acceleration | \(\large{\frac{ft}{sec^2}}\) | \(\large{\frac{m}{s^2}}\) |
| \(\large{ p_{spf} }\) = maximum surge pressure for fluid | \(\large{\frac{lbf}{in^2}}\) | \(\large{Pa}\) |
| \(\large{ p_{spw} }\) = maximum surge pressure for water | \(\large{\frac{lbf}{in^2}}\) | \(\large{Pa}\) |
| \(\large{ h_{spf} }\) = maximum surge pressure head in length of fluid | \(\large{\frac{lbf}{in^2}}\) | \(\large{Pa}\) |
| \(\large{ \alpha }\) (Greek symbol alpha) = pressure wave velocity | \(\large{\frac{ft}{sec}}\) | \(\large{\frac{m}{s}}\) |
| \(\large{ \gamma_f } \) (Greek symbol gamma) = unit weight of fluid | \(\large{\frac{lbm}{ft^3}}\) | \(\large{\frac{N}{m^3}}\) |
Tags: Water Hammer