Abstract
A novel cylindrical oblique fin minichannel heat sink, in the form of an enveloping jacket, is proposed to be fitted over cylindrical heat sources. This chapter provides a description on the numerical simulation and experimental investigation for both conventional and cylindrical oblique fin minichannel, a similarity analysis and parametric study for oblique fin minichannel heat sink and an edge effect investigation. The objectives include: (1) validate the applicability of conventional theories and simulation results in predicting heat transfer performance for cylindrical oblique fin minichannel, (2) explore the flow mechanism and optimize the structure of cylindrical oblique fin heat sink for its best overall heat transfer performance and (3) understand how the edge effect influences the flow and temperature uniformity due to the generation of secondary flows in the minichannels. In this chapter, minichannel geometry consideration, simulation model set-up, test section design, experimental set-up and data analysis are presented; various flow distributions are investigated and reported, as the secondary channel gap, oblique angle and Reynolds number are varied; multiple correlations for the average Nusselt number and the apparent friction constant are obtained and discussed; the edge effect for oblique finned structure is examined. Lastly, key conclusions are discussed and presented for this chapter.
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Fan, Y., Lee, P.S., Singh, P.K., Lee, Y.J. (2015). Cylindrical Oblique Fin Minichannel Structure. In: Thermal Transport in Oblique Finned Micro/Minichannels. SpringerBriefs in Applied Sciences and Technology(). Springer, Cham. https://doi.org/10.1007/978-3-319-09647-6_3
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DOI: https://doi.org/10.1007/978-3-319-09647-6_3
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