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earth science module

Posted 09.06.2011, 13:40 GMT-4 Porous Media Flow Version 4.1 3 Replies

Marios Karaoulis
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Hi all,

I want to simulate an fracture, where water can flow.
I divided my geometry to into a low Permeability (10e-20) and Storage =0,
and the fracture that presents 3 zones with permeability
zone1=10e-12
zone2=10e-10
zone3=10e-8

I have defined as boundary conditions no flow everywhere but the fracture zone.
In the fracture zone (up and down) I have defined a Hydraulic Head.

My concern has to do with the the velocity field, where to the edges of the fracture, I observe high and low velocities.

Why is that?



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3 Replies Last Post 09.06.2011, 18:21 GMT-4
Wes Christensen
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Posted: 1 decade ago 09.06.2011, 16:42 GMT-4
Numerical artifacts from the high permeability contrasts?

Have you tried refining the mesh?
Numerical artifacts from the high permeability contrasts? Have you tried refining the mesh?
Wes Christensen
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Posted: 1 decade ago 09.06.2011, 16:51 GMT-4
Numerical artifacts from the high permeability contrasts?

Have you tried refining the mesh?
Numerical artifacts from the high permeability contrasts? Have you tried refining the mesh?
Marios Karaoulis
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Posted: 1 decade ago 09.06.2011, 18:21 GMT-4
I tried the finest mesh, and I still get those effects.
Can this be related to boundary conditions?
I tried the finest mesh, and I still get those effects. Can this be related to boundary conditions?

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