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turbulence model

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hello,
i am trying to build a model in which the 4 cylindrical heat sources are cooled by forced convection. The turbulence model I ues is k-ε model, but when I turn the flow velocity into lower ones, the result of simulation becomes diverging. Could anyone give me some advice to solve this?

2 Replies Last Post 6 gen 2017, 09:21 GMT-5

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Posted: 8 years ago 5 gen 2017, 16:43 GMT-5
interested in the suggestions... av a similar challenge but in my own case, fluid flow refuses to take temperature from heat transfer making the multiphysics coupling impossible. I am using 4.3b.
interested in the suggestions... av a similar challenge but in my own case, fluid flow refuses to take temperature from heat transfer making the multiphysics coupling impossible. I am using 4.3b.

Jeff Hiller COMSOL Employee

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Posted: 8 years ago 6 gen 2017, 09:21 GMT-5
Heat transfer between a solid domain and a fluid domain is referred to as conjugate heat transfer. You will find a conjugate heat transfer tutorial in the Introduction to COMSOL Multiphysics manual, version 5.2a, starting on page 114 (cdn.comsol.com/documentation/5...uctionToCOMSOLMultiphysics.pdf).
All manuals are accessed through File>Help>Documentation.
Best regards,
Jeff
Heat transfer between a solid domain and a fluid domain is referred to as conjugate heat transfer. You will find a conjugate heat transfer tutorial in the Introduction to COMSOL Multiphysics manual, version 5.2a, starting on page 114 (cdn.comsol.com/documentation/5...uctionToCOMSOLMultiphysics.pdf). All manuals are accessed through File>Help>Documentation. Best regards, Jeff

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