Numerical investigation on heat transfer behavior of thermally developing flow inside rectangular microchannels
作者： Zhipeng Duan , Liangbin Su , Xiaoru Ning , Hao Ma
DOI: 10.1016/J.CSITE.2021.100856
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摘要: Abstract A numerical investigation is conducted to study the heat transfer characteristics of laminar flow in three-dimensional rectangular microchannels with aspect ratios 0.1–1 and Reynolds numbers 5–400. In this paper, effects ratio number on local mean Nusselt are presented detail. Good agreement observed between present results data reported literature. The show that has a great impact thermally developing region, especially at lower number, while independent developed number. found increase decreasing same Additionally, these parameters dimensionless thermal entrance length also investigated. for monotonously increases by increasing whereas effect can be basically ignored when more than 50. Generalized correlations length.
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