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

Description Usage Arguments Value Author(s) References See Also Examples

Function to calculate the drawdown of a Boulton model

1	boulton_solution(ptest, a, t0, t1, phi, t)

`ptest`	A pumping_test object
`a`	Slope of the straight line fitted to the drawdown data using the Cooper-Jacob approach
`t0`	Intercept of the straight line fitted to the drawdown data using the Cooper-Jacob approach (early time)
`t1`	Intercept of the straight line fitted to the drawdown data using the Cooper-Jacob approach (late time)
`phi`	Delay parameter. Dimensionless parameter defined as φ = \frac{α_{1} r^{2} S}{T} where α_{1} is a fitting parameter without a physical estimation, r is the distance between the pumping and observation well, S is the storage coefficient and T is the transmissivity.
`t`	Numeric vector with the time values

A vector with the calculated drawdown

Oscar Garcia-Cabrejo khaors@gmail.com

Boulton, N. The drawdown of the water-table under non-steady conditions near a pumped well in an unconfined formation. Proceedings of the Institution of Civil Engineers, 1954, 3, 564-579

Other boulton functions: boulton_WF_LT, boulton_calculate_parameters, boulton_solution_dlogt, boulton_well_function

data(boulton)
ptest <- pumping_test("Well1", Q = 0.03, r = 20, t = boulton$t, s = boulton$s)
boulton_sol0 <- boulton_solution_initial(ptest)
boulton_sol1 <- boulton_solution(ptest, boulton_sol0$a, boulton_sol0$t0,
                boulton_sol0$t1, boulton_sol0$phi, boulton$t)