Van Everdingen-Hurst Aquifer LAMBDAs
Van Everdingen-Hurst unsteady-state influx from dimensionless time and radius solutions.
3 lambdas
PO.MBE.Aq.VEH.tD.SI(K, t, porosity, Uw, ct, rr)
Calculates dimensionless time for VEH aquifer, [dimensionless]. tD = 0.00634*k*t / (phi*muw*ct*rr^2) (SI units).
PO.MBE.Aq.VEH.reD.SI(ra, rr)
Calculates dimensionless radius for VEH aquifer, [dimensionless]. reD = ra / rr (SI units).
PO.MBE.Aq.VEH.U.SI(porosity, ct, h, rr, theta)
Calculates aquifer constant for VEH model, [m3/kPa]. U = 1.119 * phi * ct * h * rr^2 * (theta/360) (SI units).