Modeling Porous Media Flow
Posted Aug 17, 2022, 11:02 a.m. EDT Fluid & Heat, Computational Fluid Dynamics (CFD), Porous Media Flow Version 6.0 0 Replies
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I am currently trying to model flow through the extracellular matrix, but in the beginning stages of my simulation, I have run into errors in modeling flow through a gel.
If I run a stationary simulation of a rectangular prism where one side is an inlet and the other is an outlet with a porosity of 0.99, I receive the error "Failed to find a solution, maximum number of Newton iterations reached, returned solution is not converged, not all parameter steps returned.” As far as I know, the lack of error estimate convergence indicates that time dependent geometry and parameters have been run in a stationary study, and the model interprets the geometry/parameters as yielding a time-dependent flow. Is this correct? Currently I am trying to model an ideal fluid, so the fluid should not be time-dependent. Is there any way to change this?
If I run a time-dependent simulation of the porous medium cube, the velocity graphic reports that there is only movement of the liquid on the inlet and outlet sides. I have attached a screenshot of a version of this, with a cylindrical cutout yielding the same errors. Would anyone be able to help me resolve this problem?
Hello Aparna Deokar
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