CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   CD-adapco (http://www.cfd-online.com/Forums/cd-adapco/)
-   -   Complex boundary conditions?? (http://www.cfd-online.com/Forums/cd-adapco/52386-complex-boundary-conditions.html)

Moussa Diarra April 21, 2000 11:19

Complex boundary conditions??
 
Hi Can anybody help me? i'am trying to simulate Air Flow between two independant rotating disks and i have a problem to define the boundary conditions (there is no inlet/outlet boundaries).The only condition i know is The static pressure (atmosphere 1.013e5 Pa) is present everywhere before the rotor disk starts. All ideas are welcome.

Regards

tobbe April 27, 2000 08:55

Re: Complex boundary conditions??
 
If the disks are perfectly circular and symmetric the easiest thing is to put a cylindrical coordinate system in the center of each disk and then use a moving wall boundary at each disk utilizing the coordinate systems just created. The walls will then be seen as rotating even if the actual mesh is fixed.


All times are GMT -4. The time now is 06:43.