[Michel_sharp]

Hello,

I curious if there's an application that uses the edges of meshes as channels of flow. Whereby the tension between the cells defines the flow within the cells. The 'flow' would be like a current, in such a way that circuits emerge after a time out of a random starting position. Also cells/meshes could shrink or expand based on a balancing tension between them. I have added some sketches to give a rough idea.

Does such 'Computer Flow Dynamic' software exist? If not, could there be an extension added to OpenFOAM whereby there is interaction with the edges (flow) between the cells? This isn't exactly something for modelling fluids, but more for something like the flow and interaction between cells in (imaginary) organic systems. I'm not sure if I'm here at the right place, but I thought that there might be possibly a connection to make this happen.

Thanks in advance for your feedback!

Krgds,

Michel

[FMDenaro]

I am not sure of what you are exactly asking for ... you look for something like the immersed boundary method or interface method for penetrating flow between membrane?

[Michel_sharp]

Originally Posted by FMDenaro

I am not sure of what you are exactly asking for ... you look for something like the immersed boundary method or interface method for penetrating flow between membrane?

Hi FMDenaro,


Thank you for your question/suggestions. Yes, the latter seems to be going in the right direction. It lead me to this interesting paper: Analysis and applications of the Voronoi Implicit Interface Method (pdf)



It has Voronoi-cells and there are pressure differences, but what I had in mind is slightly more like what's done with Voronoi-cells in this gameblog-post, Polygonal Map Generation for Games, where a river is created between the cells with a Hill climbing method.



--

So the goals it to have a type of double dynamic/sliding/moving-mesh-system.



With one set of cells for the solid volume, and a neighbouring one for flow/liquid.



Similar to cell tissue in biology:



Regulated by a communicating vessels system; where flow is influenced by the pressure between volume-cells; and volume-cells can expand or shrink based on the amount of surrounding fluid; a whole system of connected springs.



Not sure if this is helps to give you a better idea.

Brgds,

Michel

[FMDenaro]

This is not my field of experience, but I remember I read something like this...
I suggest to check for article in journals like JCP, JFM, PoF ...
I think you should focus on the interface method as it supplies the pressure difference by considering the mass.

[Michel_sharp]

Originally Posted by FMDenaro

This is not my field of experience, but I remember I read something like this...
I suggest to check for article in journals like JCP, JFM, PoF ...
I think you should focus on the interface method as it supplies the pressure difference by considering the mass.

Ok, thanks. One last question, is such a method far removed from what OpenFoam or any of the other software discussed here on the forum can do?

[FMDenaro]

Originally Posted by Michel_sharp

Ok, thanks. One last question, is such a method far removed from what OpenFoam or any of the other software discussed here on the forum can do?

sorry but I don't know...
at present I am aware of Karalit using the IB method.

[Michel_sharp]

Originally Posted by FMDenaro

sorry but I don't know...
at present I am aware of Karalit using the IB method.

Alright, no problem, I can use the search-tab at the top of this page for some references on 'interface method'.