The Numerical Simulation of Enhanced Heat Transfer Tubes

The enhancing heat transfer mechanism of the transversally corrugated tube,converged-diverging tube and corrugated tube compared with that of the smooth tube was studied in this paper. Here heat transfer models were established with water as the medium of the enhanced heat transfer tubes .We used simplec methods and the standard k- ɛ turbulence model in Fluent and analyzed the impact of different tube structure on heat transfer tubes, finally, achieved visualization of flow field in enhanced heat transfer tubes. it can been concluded from the figures that: within the scope of this study, the order of three tubes according to the merits is transversally corrugated tube, convergeddiverging tube and corrugated tube.