transient

transient

Simulates transient groundwater flow according to the implicit finite difference method.

result = transient(elevation, recharge, transmissivity, flowCondition, storageCoefficient, timestep, tolerance)
elevation

scalar; spatial ([L])

recharge

scalar; spatial, non-spatial ([L T-1])

transmissivity

scalar; spatial, non-spatial ([L2 T-1])

flowCondition

nominal; spatial, non-spatial

storageCoefficient

scalar; spatial, non-spatial ([L3 L-3])

timestep

scalar; non-spatial ([T])

tolerance

scalar; non-spatial

result

scalar; spatial

Operation

This function calculates the groundwater head of an aquifer system according to the Gauss-Seidel iteration and Crank-Nicolson method (Wang & Anderson). The flowCondition indicates whether cells are either inactive (0), active (1) or have a constant head (2). The tolerance specifies the maximum difference between the current elevation and the new elevation.