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Unconfined Aquifer Well Design Calculator

Fluid Mechanics Hydraulics Hydrology

The following equation uses Darcy's equation with pumping occurring at the center of a cylinder. This equation can be utilized to determine the cone of depression and well drawdown in an unconfined aquifer.

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Solving for permeability coefficient.

permeability coefficient


Inputs:

flow rate (Q) 
radius point 1 (r1
radius point 2 (r2
pressure head at point 1 (h1
pressure head at point 2 (h2


Conversions:

flow rate (Q) = 0    = 0  meter^3/day
radius point 1 (r1) = 0    = 0  meter
radius point 2 (r2) = 0    = 0  meter
pressure head at point 1 (h1) = 0    = 0  meter
pressure head at point 2 (h2) = 0    = 0  meter


Solution:

coefficient of permeability (K)  =  HAS NOT BEEN CALCULATED 


Other Units:



Change Equation
Select an equation to solve for a different unknown

extraction flow rate extraction flow rate
permeability coefficient permeability coefficient
pressure head at point 1 pressure head at point 1
pressure head at point 2 pressure head at point 2
radius at point 1 radius at point 1
radius at point 2 radius at point 2

References - Books:

1) P. Aarne Vesilind, J. Jeffrey Peirce and Ruth F. Weiner. 1994. Environmental Engineering. Butterworth Heinemann. 3rd ed.

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