anaflow.tools.special.aniso

aniso(e)

The anisotropy function.

Known from ‘’Dagan (1989)’’[R2].

Parameters:

e (float) – Anisotropy-ratio of the vertical and horizontal corralation-lengths

Returns:

aniso – Value of the anisotropy function for the given value.

Return type:

float

Raises:

ValueError – If the Anisotropy-ratio e is not within 0 and 1.

References

[R2]

Dagan, G., ‘’Flow and Transport on Porous Formations’’, Springer Verlag, New York, 1989.

Examples

>>> aniso(0.5)
0.2363998587187151