Unformatted text preview: ated infiltration, F’:
• Check to see if we reached ponding:
If yes, no ponding (guess was right):
Δ Δ ??? 20 3 22‐Oct‐13 Case 3: Ponding begins during time step
• Tentative potential infiltration rate is less than rainfall rate, i.e., 1 We can find the amount accumulated prior to ponding by setting ’
us: , giving Δ The time to ponding is And we can calculate the cumulative infiltration from the approximate solution:
⋅ 1.94 ⋅ ∗ .
Where the dimensionless time is evaluated at the end...
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- Fall '14
- δ, Ampt, 1.09 cm, 11.01 cm, Approximate explicit solution