How to mesh doble pipe heat exchanger with twisted tape insert??

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  • Last Post 05 June 2019
Devank12 posted this 05 June 2019

I am doing flow analysis in double pipe heat exchanger using fluent. Here twisted tape is located inside the internal pipe . I successfully created the geometry using design modular. I am currently facing some trouble on meshing operations. Can anyone tell me what type of mesh is very effective this kind of heat exchanger???

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rwoolhou posted this 05 June 2019

Please can you post some images? By twisted tape do you mean a helical baffle? 

Devank12 posted this 05 June 2019

i have enclosed the fig of the front view of the heat exchanger and twisted tape inside the fluid domin 

rwoolhou posted this 05 June 2019

OK, thanks. I'd split the centre channel with the baffle (I assume it's attached to the inner tube) and sweep.  Looking at the upper image: you need to have mesh in the solid zone(s) or there will be no heat transfer. 

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