Chapter 4(Infiltration)

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1/111 Chapter 4 Infiltration

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infiltration hydrology

Transcript of Chapter 4(Infiltration)

  • Infiltration by Hortons method

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    Infiltration Hortons Equation

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    Infiltration Hortons Equation

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    Infiltration Horton's model for infiltration capacityInfiltration rate [in/hr or cm/hr]:

    f : infiltration capacity [in/hr]f0: initial infiltration capacity [in/hr]fc: ultimate infiltration capacity [in/hr]k : exponential (time) decay constant [hr-1]

    f(t) = fc + (f0 fc) e-kt

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    Infiltration Cumulative infiltration depth [in or cm]:

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    Infiltration Hortons EquationAdvantages:SimpleCan be applied graphicallyDisadvantages:Parameters hard to estimateOnly valid for i > f

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    Infiltration -index methodDefinition:a constant infiltrationcapacity units of [in/hr] or [cm/hr]

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    Infiltration -index methodAdvantages:SimpleCan be applied graphicallyDisadvantages:Assumes constant infiltration rate

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Infiltration and Surface Water zDefinition of Infiltration zDifference between drylands and humid regions zFactors Affecting Infiltration zModelling Infiltration.

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Detention & Infiltration

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Caries infiltration

Caries infiltration

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Botnet Infiltration

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INFILTRATION PUMP

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d Infiltration

d Infiltration