• Semiconductor Optoelectronics
  • Vol. 44, Issue 1, 58 (2023)
CAO Weihua, ZHANG Suocheng, ZHU Jiyuan*, and SUN Wenjun
Author Affiliations
  • [in Chinese]
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    DOI: 10.16818/j.issn1001-5868.2022063002 Cite this Article
    CAO Weihua, ZHANG Suocheng, ZHU Jiyuan, SUN Wenjun. Effect of Divergent Ratio on Flow and Heat Transfer Characteristics of Half-corrugated Microchannel[J]. Semiconductor Optoelectronics, 2023, 44(1): 58 Copy Citation Text show less

    Abstract

    In order to investigate the influence of divergent ratio on the flow and heat transfer characteristics of half-corrugated microchannel, five models of half-corrugated microchannel with different divergent ratio were designed, flow (200<Re<1000) and heat transfer behavior were researched by numerical simulation method, and the results were compared with smooth microchannel. The results show that the pressure drop and Nusselt number of half-corrugated microchannel increase with the decrease of the divergent ratio. Compared with smooth microchannel, half-corrugated microchannel has better heat transfer performance but higher pressure drop loss. By introducing η as the comprehensive performance index, it is found that reducing the divergent ratio is an effective way to improve the comprehensive heat transfer capacity of the half-corrugated microchannel. And when the Re>490, its comprehensive heat transfer capacity is better than that of smooth microchannel.
    CAO Weihua, ZHANG Suocheng, ZHU Jiyuan, SUN Wenjun. Effect of Divergent Ratio on Flow and Heat Transfer Characteristics of Half-corrugated Microchannel[J]. Semiconductor Optoelectronics, 2023, 44(1): 58
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