Issue with validation_dfm.m When Modifying Rock Compressibility

[ROCKY ZHOU]

Dear MRST Developers,

First of all, thank you for your excellent work! I’m encountering a problem while using validation_dfm.m. （mrst-2024a）

The model involves incompressible fluid flow in incompressible rock. When I modify the fluid compressibility, the model runs without issues. However, when I try to increase the rock compressibility, the code returns an error.

Here’s the relevant part of my setup:

<MATLAB>

fluid_matrix = initSimpleADIFluid('phases', 'WO', 'mu', [1, 0.45]*centi*poise, 'cR', 4e-10);

Could you please help explain why this happens?

Best regards,

[ROCKY ZHOU]

Dear MRST Developers,

First of all, thank you for your excellent work! I’m encountering a problem while using validation_dfm.m.

The model involves incompressible fluid flow in incompressible rock. When I modify the fluid compressibility, the model runs without issues. However, when I try to increase the rock compressibility, the code returns an error.

Here’s the relevant part of my setup:

fluid_matrix = initSimpleADIFluid('phases', 'WO', 'mu', [1, 0.45]*centi*poise, 'cR', 4e-10);

Could you please help explain why this happens?

Best regards,

Jinxin