Heat Transfer Enhancement Techniques for Air Conditioning and Refrigeration Equipment

该项目将有助于从根本上理解凹陷表面强化换热的原理和换热器的设计，特别是凹陷表面在空调和制冷行业中的应用。不同于以前的CFD研究是基于流动是稳定的并且与本项目中的传热计算解耦的假设不同，完全耦合问题将被解决，在该问题中允许在凹陷表面上发生非稳定流动。因此，我们将能够更准确地确定对压降和热传递的综合影响。

The proposed Project will make significant contribution towards the both fundamental understanding of heat transfer enhancement using dimpled surfaces and the design of heat exchangers and, in particular to the application of dimpled surfaces in air conditioning and refrigeration industries. Unlike the previous CFD studies which have been made on the assumptions that the flow is steady and decoupled from the heat transfer calculations in this Project the fully coupled problem will be solved, in which unsteady flows are allowed to occur over a dimpled surfaces. As a result we will be able to more accurately determine the resultant effects on the pressure drop and heat transfer.