Function to calculate the well function of the Cooper-Jacob solution

cooper_jacob_well_function(u)

Arguments

u

dimensionless variable u

Value

This function returns the dimensionless drawdown using the Cooper-Jacob solution

References

Cooper, H. & Jacob, C. A generalized graphical method for evaluating formation constants and summarizing well field history. Transactions of the American Geophysical Union, 1946, 27, 526-534

See also

Examples

td <- logseq(-2, 4, 50) u <- 1.0/td res <- cooper_jacob_well_function(u) plot(u,res, type="p", log="xy")
#> Warning: 19 y values <= 0 omitted from logarithmic plot