MATEC Web Conf.
Volume 100, 201713th Global Congress on Manufacturing and Management (GCMM 2016)
|Number of page(s)||6|
|Section||Part 4: Equipment manufacturing and New materials|
|Published online||08 March 2017|
A research of heat transfer enhancement of rectangular channel with dimples
College of Mechanical Engineering of Hubei University of Technology, Hongshan District, Wuhan City, Hubei Province, PRC
this thesis is aimed to do numerical simulations on rectangular channel with a new model of dimple in different condition of channel height, dimple depth, dimple distance by using CFD program and RNG k-ε model. It is concluded that, the existence of dimple has changed the velocity and direction of the fluid, as well as the original flow status. Dimple increased the heat exchange area of rectangular channel and broke the boundary layer, enhanced the flow rate of fluid, as a result of enhanced heat transfer performance.
Key words: dimple / heat transfer enhancement / heat transfer performance / numerical simulation
© The Authors, published by EDP Sciences, 2017
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