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Pressure in Reacting Flow in Porous Media
Posted Feb 6, 2013, 8:49 p.m. EST Computational Fluid Dynamics (CFD), Chemical Reaction Engineering, Results & Visualization Version 4.3a 1 Reply
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Hello All,
I am running a model in 4.3a with the node "Reacting Flow in Porous Media," and simulating groundwater flow in a confined aquifer. When I look at the results, my average pressure gets down to -10000 Pa. Does anyone know what exactly that P is representing? The pressure of the domain material (bedrock)? Or pore pressure? Or the pressure of the water in the pore space? I set the boundary conditions by velocity of flow. Also, the pressure changes when I change the concentration of my reacting species...
Any help would be much appreciated!
Cheers,
Kelley
I am running a model in 4.3a with the node "Reacting Flow in Porous Media," and simulating groundwater flow in a confined aquifer. When I look at the results, my average pressure gets down to -10000 Pa. Does anyone know what exactly that P is representing? The pressure of the domain material (bedrock)? Or pore pressure? Or the pressure of the water in the pore space? I set the boundary conditions by velocity of flow. Also, the pressure changes when I change the concentration of my reacting species...
Any help would be much appreciated!
Cheers,
Kelley
1 Reply Last Post Feb 7, 2013, 1:40 p.m. EST
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Posted:
1 decade ago
Kelley-
The pressure variable, p, for this interface is the pressure of your fluid (in this case, the groundwater). By clicking on the parent node, Reacting Flow in Porous Media, and the child node, Transport Properties, and then expanding the Equation section in the settings window you can see the equations that this interace solves for. Studying these equations will give you an understanding of the various couplings that are going on.
Hope that helps some.
Regards,
Josh Thomas
AltaSim Technologies
The pressure variable, p, for this interface is the pressure of your fluid (in this case, the groundwater). By clicking on the parent node, Reacting Flow in Porous Media, and the child node, Transport Properties, and then expanding the Equation section in the settings window you can see the equations that this interace solves for. Studying these equations will give you an understanding of the various couplings that are going on.
Hope that helps some.
Regards,
Josh Thomas
AltaSim Technologies