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External Radiation Boundary Condition (Two sided wall), Grid Interface |
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July 8, 2010, 06:49 |
External Radiation Boundary Condition (Two sided wall), Grid Interface
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CFD Xue
Join Date: Jun 2010
Posts: 12
Rep Power: 16 |
I am solving a transient aerothermal problem.
A simple blunt cone is travelling at supersonic speed. I want to include Radiation heat transfer from body to fluid (air). If I use radiation option in thermal boundary condition (at wall) then is it ok or not? I am using grid interface between blunt cone surface and fluid. When I create interface, fluent automatically generate four walls, namely: 1. Boundary Zone 1 2. Boundary Zone 2 3. Interface Wall Zone 1 4. Interface Wall Zone 2 For Interface Wall Zone 1 and Interface Wall Zone 2 fluent automatically assign coupled boundary condition (thermal boundary condition). For Boundary Zone 1 and Boundary Zone 2 fluent automatically assign heat flux = 0 boundary condition (thermal boundary condition). These boundary conditions for all four walls are ok or we need to modify it? If I want to use External Radiation Boundary Condition (Radiation heat transfer from body to fluid), in which wall I should use Radiation boundary condition? Thanks and Regards |
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external radiation bc, grid interface, radiation, two sided wall |
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