pc_curve

pc_curve(im, pc, seq=None)

Produces a Pc-Snwp curve given a map of meniscus radii or capillary pressures at which each voxel was invaded

Parameters:

• im (ndarray) – The voxel image of the porous media with True values indicating the void space

• pc (ndarray) – An image containing the capillary pressures at which each voxel was invaded during an invasion experiment. This image can be produced using size_to_pc if not available.

• seq (ndarray, optional) – An image containing invasion sequence values, such as that returned from the ibip function. The curve is generated by scanning from lowest to highest values and computing the corresponding saturation.

Returns:

pc_curve – A custom object with the following data added as named attributes:

Attribute	Description
pc	The capillary pressure, either as given in pc or computed from sizes (see Notes).
snwp	The fraction of void space filled by non-wetting phase at each pressure in pc

Return type:

Results object

Examples

Click here to view online example.