I was trying to create a cylindrical obstacles in cartesion cordinates system and i got the cylinder.dat file. i used this file in the simple room geometry (3x3x3) and finally i got good results. Now i want to know how gridding and other variables are treated for cylindrical obstacles in cartesion coordinate systems. Please help me?

these things are not given in manual in details. of course it identifies the cells with solid and liquid/gas and then sets zero and non-zero velocities respectively. At the interface cells, it uses PARSOL but formulaiton of PARSOL isnt given.

Thanks amv, but still things are not clear because as i know we can't use cylinder in cartesion coordinates without multiblocking the grid feature. Can u please tell me that what are the input paramters for cylinder for my problem. thanks

The idea is to turn on PARSOL - that way partially blocked cells (intersection of rectangular cells with curved surfaces) is approximated by a *partially* blocked cell. It often works pretty well if the grid size is small. The other option is to use a 3rd party grid-generation program and use BFC's. Patti

Thanks P

I think this might work. and now I got exact idea.

Thanks again