{"id":169576,"date":"2022-05-19T02:28:49","date_gmt":"2022-05-19T02:28:49","guid":{"rendered":"\/forum\/forums\/topic\/different-heat-transfer-coefficients-from-wall-and-shadow\/"},"modified":"2022-05-20T15:29:35","modified_gmt":"2022-05-20T15:29:35","slug":"different-heat-transfer-coefficients-from-wall-and-shadow","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/different-heat-transfer-coefficients-from-wall-and-shadow\/","title":{"rendered":"Different Heat Transfer coefficients from wall and shadow"},"content":{"rendered":"
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Hi,<\/p>\n

I am trying to look at the mean heat transfer rates from a thin isothermal wall (i.e. 0 thickness) under natural convection. Looking at online videos and forums, I have created a baffle surface on a plane in the middle of the control volume in spaceclaim. I merged the surface to the body in spaceclaim to preserve the meshing at the contact region. However, upon importing the geometry, there exists a baffle (wall B.C.) and baffle shadow.<\/p>\n

Decoupling the wall and shadow and setting identical thermal boundary conditions (constant temperature) gives me different wall adjacent heat transfer coefficients on both sides. Coupling them results in no net heat transfer as a specific temperature could not be set.<\/p>\n

How should I proceed? Is there any way to alter the geometry or the problem setup?<\/p>\n

<\/p>\n<\/p>\n

Many thanks!<\/p>\n

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