Dear everyone, I am trying to solve the Richards’ equation which describes the variably saturated groundwater flow. The equation can be written as (sorry for the coarse equaion expression but I can only upload one picture) d(theta) / dt=div [ K ( theta ) *grad (h( theta ) + y) ] where theta is the…

Unstable solutions when solving Richards' equation. Need help!

wyyyyy January 16, 2021, 2:19am 4

refine mesh and use Picard iteration

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