[Discontinuity]

Hi

I am doing some work with microfluidic channel and I want to have a much better understanding of how pore voids are filled due to the capillary pumps. As a result I want to actually model the geometry rather than using a global average of the porous zone. I have access to a HPC cluster to run this problem, but I need to get a geometry first. I have access to openfoam, CFX and FLUENT as solvers.

My questions are the following

1) Is there a way to programmatically generate the geometry. I am thinking i want the ability to specify a average size and a SD and have it build a structure that has a normal distribution so I can play with different configurations quickly.

2) Once I have said structure, how many mesh elements do I need in each pore, Say I have a pore size of 3 microns. My mesh must be how many times smaller than that. The channel dimension of the channel is small obviously (140um x 3000um x 3cm) but obviously the more elements the bigger the cpu demand.

Any ideas?

Thanks in advance.