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→Calculate drawdown time
To calculate the time (''t'') to fully drain the facility:
To calculate the time (''t'') to fully drain the facility:
<math>t=\frac{V_{R}A_{p}}{q'P}ln\left [ \frac{\left (d+ \frac{A_{p}}{P} \right )}{\left(\frac{A_{p}{P}\right)}\right]</math>
<math>t=\frac{V_{R}A_{p}} {q'P}ln\left [ \frac{\left (d+ \frac{A_{p}}{P} \right )}{\left(\frac{A_{p}}{P}\right)}\right]</math>
[[category: modeling]]
[[category: modeling]]
[[category: infiltration]]
[[category: infiltration]]