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-   -   bottom and top surface of cylinder as seperate entities in grid generation(gambit) (http://www.cfd-online.com/Forums/main/69878-bottom-top-surface-cylinder-seperate-entities-grid-generation-gambit.html)

ryan November 7, 2009 21:17

bottom and top surface of cylinder as seperate entities in grid generation(gambit)
 
how do we make sure that top and bottom side of the cylinder are seperate entites while using gambit.I'm solving it only for 2d visvcous flow...????

ztdep November 7, 2009 21:28

what is the problem? I can not fully understand your question.

2-D viscourse flow caculation, then you should use a axis-symmetry coorinate.
Top is the pipe wall, bottome is the axis, the other two are inlet and outlet, respectively.

ryan November 7, 2009 21:41

well i have a cylinder in the computational domain as you specified....i have to make sure that the top side and the bottom side of the cylinder are seperate entities during the grid generation...how do i do that?????

ztdep November 7, 2009 21:52

you can define them different boundary name after the grid generation.

ryan November 7, 2009 22:02

how can i do tht...????

ryan November 7, 2009 22:58

i think i have to first create them as two seperate entities...how do i do that...i cant define a different boundary name...


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