Questions tagged [porous-medium]
The porous-medium tag has no usage guidance.
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Is there a specific way to simulate porous structures?
I tried to simulate an axial compression test for a lattice (porous) structure but It takes too much time and it doesn't give me the right answer (when I compare with experimental results). So, I was ...
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pressure difference across injection and extraction in soil
We have a tank of dimension 100cm *100cm *5 cm( assuming 1D flow) which is filled with saturated sand and 5 cm of water standing above the soil. We inject fluid ( which is same as water in density and ...
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Modeling air bearing flow as porous medium
I want to model the flow through a cylindrical air bearing such as the New Way Flat round air bearing, so that I can play around with modifying parameters (porous and fluid medium type and geometry) ...
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Holzapfel-Gasser-Ogden (HGO) model
Can Holzapfel-Gasser-Ogden (HGO) model be applied to solid porous materials such as rocks, concrete and etc. as well? If yes, would you please introduce a reference.
If not, is there any modified ...
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Question about tensile test of model from research paper [closed]
In this paper they made a tensile force test on their four different models with four different pore size structure to show that pore size is not affecting on the tensile force. But it seems that they ...
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Small building basement foundation moisture: permeable vs impermeable
I understand that moisture is the enemy of interiors. I know that the standard basement foundation for a house-sized building uses moisture barriers on the outside of concrete retaining walls to ...
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What material can wick up fluids while not allowing micro-organisms to pass?
I'm looking for a material that can wick up a solution containing nutrients and sugars. The dirty side of the wick should touch a medium to draw up the solution, on the clean side of the wick ...
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Up flow vs down flow through a porous fixed bed
How do I analyse for, or what do I need to consider, when comparing gravity-opposed vs gravity assisted flow in a tube containing a porous bed that partially shrinks (through partial mass loss) over a ...
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Is there a relation between porosity and PPI density in porous media?
I've seen two methods to describe porosity of porous media (specifically metal foams):
Porosity $\epsilon$ which is a ratio between volume of voids and total volume of the medium.
PPI (Pores Per Inch)...
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How to force creating a conformal mesh interface between zones in Fluent?
I am trying to perform simple 2D CFD analysis on Fluent having 3 adjacent zones(inlet, porous and outlet).
The problem I have is whenever I select non-equilibrium thermal model in porous zone in Cell ...
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How safe is this assumption for turbulence modelling in porous media?
I am studying the performance of volumetric solar receivers (specifically ceramic foams) versus the change of many parameters: solar flux, surface temperature, porosity, pore diameter, flow pressure ...
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What is "flow instability" in porous media?
Pressure drop across a porous medium can be described by the Forchheimer extension to Darcy’s law:
$$-\frac{dp}{dx} = \frac{\mu}{K_1}\cdot v + \frac{\rho}{K_2}\cdot v^2$$
where $K_1$ and $K_2$ are ...
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