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Richard's equation

Posted Sep 2, 2016, 8:13 a.m. EDT Fluid & Heat, Porous Media Flow, Modeling Tools & Definitions, Parameters, Variables, & Functions Version 5.1, Version 5.2 2 Replies

Anton Enns
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Hi,

i want to simulate an injection problem. I have a fluid injected in a dry soil. The easiest way for me is to solve the Rachard's equation. The Problem is that I cant find the "Richar's Equation" at the Add physics interface.
Is there no "Richar's Equation" for the COMSOL 5.1?

Many thanks,
Anton
2 Replies Last Post Dec 7, 2016, 5:34 a.m. EST
Jeff Hiller COMSOL Employee

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Posted: 8 years ago Sep 2, 2016, 10:21 a.m. EDT
Hello Anton,
Richards equation is implemented in the Subsurface Flow Module. Make sure your license includes that optional product. You can check on that under File > Licensed and Used Products.
Best regards,
Jeff
Hello Anton, Richards equation is implemented in the Subsurface Flow Module. Make sure your license includes that optional product. You can check on that under File > Licensed and Used Products. Best regards, Jeff
Alexandre Martins Alves
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Posted: 8 years ago Dec 7, 2016, 5:34 a.m. EST
Hi,
I'm using the 5.2 version of Comsol, and as I looked on the "Licensed and Used Products" field it seems that I have the subsurface module but Richard's equation don't appears as used to appera in earlier versions 4.4, for example.

Thanks in advance,
Alexandre
Hi, I'm using the 5.2 version of Comsol, and as I looked on the "Licensed and Used Products" field it seems that I have the subsurface module but Richard's equation don't appears as used to appera in earlier versions 4.4, for example. Thanks in advance, Alexandre

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