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Pressure Drop of Microchannel Plate Fin Heat Sinks.
Duan, Zhipeng; Ma, Hao; He, Boshu; Su, Liangbin; Zhang, Xin.
Afiliación
  • Duan Z; School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China. zpduan@bjtu.edu.cn.
  • Ma H; School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China. 18116018@bjtu.edu.cn.
  • He B; School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China. hebs@bjtu.edu.cn.
  • Su L; School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China. 16116368@bjtu.edu.cn.
  • Zhang X; School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China. zhangxin@bjtu.edu.cn.
Micromachines (Basel) ; 10(2)2019 Jan 24.
Article en En | MEDLINE | ID: mdl-30678359
The entrance region constitutes a considerable fraction of the channel length in miniaturized devices. Laminar slip flow in microchannel plate fin heat sinks under hydrodynamically developing conditions is investigated semi-analytically and numerically in this paper. The semi-analytical model for the pressure drop of microchannel plate fin heat sinks is obtained by solving the momentum equation with the first-order velocity slip boundary conditions at the channel walls. The simple pressure drop model utilizes fundamental solutions from fluid dynamics to predict its constitutive components. The accuracy of the model is examined using computational fluid dynamics (CFD) simulations and the experimental and numerical data available in the literature. The model can be applied to either apparent liquid slip over hydrophobic and superhydrophobic surfaces or gas slip flow in microchannel heat sinks. The developed model has an accuracy of 92 percent for slip flow in microchannel plate fin heat sinks. The developed model may be used to predict the pressure drop of slip flow in microchannel plate fin heat sinks for minimizing the effort and expense of experiments, especially in the design and optimization of microchannel plate fin heat sinks.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Micromachines (Basel) Año: 2019 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza
Texto completo
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Micromachines (Basel) Año: 2019 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza