26.6 - Infiltration Equations and Models
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Practice Questions
Test your understanding with targeted questions
What does f(t) represent in Horton’s Equation?
💡 Hint: Think about what we measure as time passes.
Name one factor that Philip's Equation considers.
💡 Hint: Focus on the components influencing water movement.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does Horton’s Equation model?
💡 Hint: Think about how infiltration changes from the start of rain.
True or False: Philip's Equation does not consider the effect of gravity.
💡 Hint: Recall how water naturally behaves under the influence of gravity.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Given a soil with a hydraulic conductivity of 15 mm/hr, a saturated moisture content of 30%, and an initial moisture content of 10%, use Green-Ampt Equation for a ponded situation to find cumulative infiltration after 2 hours. Show all calculations.
💡 Hint: Set up the equation with the known variables, prioritize calculating suction head and subsequent infiltration.
A drainage engineer finds that a field's infiltration rate starts at 100 mm/hr and stabilizes at 20 mm/hr. Create a scenario using Horton’s Equation to calculate the decay constant, k, after the first three hours. Provide detailed reasoning.
💡 Hint: Consider dividing the change over time post-initial period and applying accordingly using estimates from the equation.
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