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March 26, 2013, 23:45 |
periodic boundary conditions
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#1 |
New Member
Naguluru prashanth kumar.
Join Date: Mar 2013
Posts: 6
Rep Power: 13 |
what is the actual significance of periodic boundary conditions(especially in problems pertaining to flow over a cylinder)? how do we create them?
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March 27, 2013, 07:16 |
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#2 |
Senior Member
OJ
Join Date: Apr 2012
Location: United Kindom
Posts: 473
Rep Power: 20 |
The periodic boundary conditions are used to simulate repeated patterns of geometry. There are two types of periodic boundaries.
a) Allowing pressure drop: In this case there is a definite pressure drop across the periodic boundary, typically in streamwise direction and hence it is also called as streamwise periodic. b) Not allowing pressure drop: In this case there is no pressure drop across the boundary and also called as translational periodic. The same is called as rotational periodic if you are simulating a cylindrical wedge and specifying the cut sections of wedge as periodic boundaries. This is very well covered in the documentation, have you had a look at it? OJ |
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