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-   -   Flow field around a ball that doing free fall in a cube (http://www.cfd-online.com/Forums/main/1276-flow-field-around-ball-doing-free-fall-cube.html)

Nadomic Lee September 10, 1999 09:56

Flow field around a ball that doing free fall in a cube
 
r is ball radius, h is box Length, width and height, 2r<h. How to calculate this kind of field. How to set BC. . Any suggestion are helpful. Thx in advance.

nado

Achuth Rao September 10, 1999 11:37

Re: Flow field around a ball that doing free fall in a cube
 
I guess it depends on what you want of the analysis.

If its just the steady state flow field around the ball, you can make the system steady and let the flow past a stationary ball.

Nadomic Lee September 11, 1999 19:06

Re: Flow field around a ball that doing free fall in a cube
 
At each time step, shall i generate a new grid?

Dr. Tanmay Sarkar September 15, 1999 14:55

Re: Flow field around a ball that doing free fall in a cube
 
If you are doing a steady state analysis there is no need to generate the grid every time.


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