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Free water level determination using pressure (view source)
Revision as of 14:32, 28 July 2014
, 14:32, 28 July 2014→Procedure using a single measurement
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| Determine buoyancy pressure (''P''<sub>b</sub> ) at the depth of the measured pressure (P<sub>m</sub> ) from the measured pressure:
| Determine [[buoyancy pressure]] (''P''<sub>b</sub> ) at the depth of the measured pressure (P<sub>m</sub> ) from the measured pressure:
:<math>P_{\rm b} = P_{\rm m} - P_{\rm hydrostatic}</math>
:<math>P_{\rm b} = P_{\rm m} - P_{\rm hydrostatic}</math>
:<math>h = \frac{P_{\rm b}}{P_{\rm bg}} = 30 \mbox{ psi} \div 0.054 \mbox{ psi/ft} = 556 \mbox{ ft}</math>
:<math>h = \frac{P_{\rm b}}{P_{\rm bg}} = 30 \mbox{ psi} \div 0.054 \mbox{ psi/ft} = 556 \mbox{ ft}</math>
Therefore, the free-water level is at [[depth::8167 ft]].
Therefore, the free water level is at [[depth::8167 ft]].
==See also==
==See also==