CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   meshing Pebble bed using Gambit (http://www.cfd-online.com/Forums/fluent/30927-meshing-pebble-bed-using-gambit.html)

Maergaret February 12, 2003 15:08

meshing Pebble bed using Gambit
 
I need help meshing a pebble bed. I tried using size function but get an error message that volume meshing fails due to smaller areas between the volumes. How can I go about this?

Startup February 15, 2003 16:10

Re: meshing Pebble bed using Gambit
 
Hi...

How are you planning to model the pebble bed? I am also modeling something similar to a pebble bed. It would be good to exchange some views on that.

Erwin February 16, 2003 11:16

Re: meshing Pebble bed using Gambit
 
You are creating a tangent point where pebbles touch each other. This is very hard to mesh properly with reasonable skewness. I would probably use a tet mesh (against my normal practice) and make sure I have a sufficiently fine mesh at the pebble contact points. This could mean a very large number of cells!

Another option could be to eliminate these tangent points by flattening the pebbles a tiny little bit at the contact points.


All times are GMT -4. The time now is 10:11.