papadopulos_cooper_well_function: papadopulos_cooper_well_function

In khaors/pumpingtest: R Package for the analysis and evaluation of pumping tests

papadopulos_cooper_well_function

Description

Function to calculate the well function of the Papadopulos-Cooper solution that describe the drawdown variations for large diameter wells

Usage

papadopulos_cooper_well_function(td, par)

Arguments

td	Dimensionless time
par	List with the cd and \rho parameters. The well storage (cd parameter) is defined as cd = \frac{r_{w}^{2} S}{r_{c}^{2}} where r_{w} is the radius of the well, r_{c} is the radius of the casing, and S is the storage coefficient. The dimensionless radius (\rho parameter) is defined as: \rho=\frac{r}{r_{w}} where r is the distance to the observation well, and r_{w} is the radius of the well.

Value

The value of the well function for the Papadopulos-Cooper model

Author(s)

Oscar Garcia-Cabrejo [e-mail]

References

Papadopulos, I. S. & Cooper, H. H. Drawdown in a well of large diameter. Water Resources Research, 1967, 3, 241-244.

See Also

Other papadopulos_cooper functions: papadopulos_cooper_F_WF_LT_dlogt, papadopulos_cooper_F_WF_LT, papadopulos_cooper_calculate_parameters, papadopulos_cooper_solution_dlogt, papadopulos_cooper_solution_initial, papadopulos_cooper_solution

Examples

td <- logseq(-2,4,30)
par <- list(cd = 0.1, rho = 0.1)
res <- papadopulos_cooper_well_function(td, par)

khaors/pumpingtest documentation built on June 10, 2025, 4:53 a.m.