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-   -   Boundary condition (http://www.cfd-online.com/Forums/fluent/44142-boundary-condition.html)

rayy March 16, 2007 08:11

Boundary condition
 
Hi all,

I simulate heat flow inside downdraft biomass gasifier.

Question:

1. I want to set boundary condition for throat wall inside the downdraft gasifier, but not sure whether want to use Wall or Baffle in the BC panel? Anyway what are the different between those 2?

2. When I import the mesh file, fluent automatically define the domain as 1 type of fluid only (interior - air). How can in add wood chips(with porosity) in the domain so that the upper part until the throat part of gasifier will contain the wood chips and mix with the air.

Thanks. I really need quick feedback. rayy


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