Flat Finned Tube Heat Exchanger Outside the Numerical Simulation of Fow and Heat Transfer Characteristics
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DOI: 10.23977/iceccs.2018.015
Author(s)
Wen Cao, Qiang Li, Zhigang Tian
Corresponding Author
Wen Cao
ABSTRACT
This paper, by using CFD software FLUENT to vehicle flat fin heat exchanger fin surface fluid flow and heat transfer process in the numerical simulation of the internal flow field, temperature field and heat exchanger heat exchanger in the import and export pressure drop and the average convective heat transfer coefficient of finned surface, etc. According to the simulation results, the fin surface convective heat transfer coefficient increases with the increase of wind speed, but the increase rate gradually decreases; Heat exchanger in the import and export pressure drop increases with the increase of wind speed, and increases its speed was accelerated. Convection heat transfer, using the field synergy principle further analysis found that the velocity increases with increase in heat is the root cause of the increase of air volume; Increased speed cause the average field synergy Angle increase in the convective heat transfer process, make the velocity field and temperature field of collaborative variation.
KEYWORDS
Flat fin, Heat exchanger, Numerical simulation, Field synergy principle