anaflow.tools.coarse_graining.TPL_CG_error

TPL_CG_error(err, cond_gmean, len_scale, hurst, var=None, c=1.0, anis=1, dim=2.0, K_well='KH', prop=1.6)[source]

Calculating the radial-point for given error.

Calculating the radial-point where the relative error of the farfield value is less than the given tollerance. See: TPL_CG()

Parameters

err (float) – Given relative error for the farfield conductivity
cond_gmean (float) – Geometric-mean conductivity
len_scale (float) – upper bound of the corralation-length of conductivity-distribution
hurst (float) – Hurst coefficient of the TPL model. Should be in (0, 1).
var (float or None, optional) – Variance of log-conductivity If given, c will be calculated accordingly. Default: None
c (float, optional) – Intensity of variation in the TPL model. Is overwritten if var is given. Default: 1.0
anis (float, optional) – Anisotropy-ratio of the vertical and horizontal corralation-lengths. This is only applied in 3 dimensions. Default: 1.0
dim (float, optional) – Dimension of space. Default: 2.0
K_well (str or float, optional) – Explicit conductivity value at the well. One can choose between the harmonic mean ("KH"), the arithmetic mean ("KA") or an arbitrary float value. Default: "KH"
prop (float, optional) – Proportionality factor used within the upscaling procedure. Default: 1.6

Returns

rad – Radial point, where the relative error is less than the given one.

Return type

float