Effects of Porous Fins on Mixed Convection and Heat Transfer Mechanics in Lid-Driven Cavities: Full Numerical Modeling and Parametric Simulations

Wang Lei; Wang Wei-Wei; Cai Yang; Liu Di; Zhao Fu-Yun

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Effects of Porous Fins on Mixed Convection and Heat Transfer Mechanics in Lid-Driven Cavities: Full Numerical Modeling and Parametric Simulations

机译：多孔翅片对盖腔混合对流和传热力学的影响：全数值模拟与参数模拟

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The present study presents a comprehensive analysis of effects of porous fins on mixed convection heat transfer in lid-driven square cavities, where the top lid has the two-way movement. Porous medium with varying permeability, instead of the solid one, could widely modify its baffling effect on fluid flow and could also be utilized to control fluid flow and heat transfer. Fluid flow within the cavity was solved through the Navier-Stokes equations, while that within a saturated porous medium was governed by the Darcy-Forchheimer model. Numerical results indicate that the adding porous fins with excellent permeability could enhance heat transfer dramatically, especially for more fins. The rate of heat transfer enhancement due to an increase in Darcy number decreases, and similar trends were observed for the quantitative variations of porous fins. Besides, positions of porous fins have significant effects on fluid flow and heat transfer. The correlations of average Nusselt numbers, as functions of various governing parameters, have been proposed. The present investigations could be beneficial to the design of the microelectronic cooling through the installation of porous-alike materials or modules.

机译：本研究综合分析了多孔鳍片对盖驱动方形腔混合对流热传递的影响，顶部盖子具有双向运动。具有不同渗透性的多孔介质，而不是固体，可以广泛地改变其对流体流动的困扰作用，并且也可以用于控制流体流动和热传递。腔内的流体流通过Navier-Stokes方程来解决，而在饱和的多孔介质内由达西 - 前米模型管辖。数值结果表明，具有优异渗透性的添加多孔鳍片可以显着提高热传递，特别是对于更多散热剂。由于达西数增加而导致的传热增强速率降低，并且对于多孔鳍片的定量变化观察到类似的趋势。此外，多孔鳍片的位置对流体流动和热传递具有显着影响。已经提出了平均露天数作为各种治理参数的函数的相关性。目前的研究可以通过安装多孔材料或模块来利用微电子冷却的设计。

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来源
《Transport in Porous Media》 |2020年第3期|495-534|共40页
作者
Wang Lei; Wang Wei-Wei; Cai Yang; Liu Di; Zhao Fu-Yun;
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作者单位

Wuhan Univ Key Lab Hydraul Machinery Transients Minist Educ Wuhan Hubei Peoples R China|Wuhan Univ Hubei Key Lab Waterjet Theory & New Technol Wuhan Hubei Peoples R China|Wuhan Univ Sch Power & Mech Engn Dong Hu South Rd Wuhan 430072 Hubei Peoples R China;

Wuhan Univ Key Lab Hydraul Machinery Transients Minist Educ Wuhan Hubei Peoples R China|Wuhan Univ Hubei Key Lab Waterjet Theory & New Technol Wuhan Hubei Peoples R China|Wuhan Univ Sch Power & Mech Engn Dong Hu South Rd Wuhan 430072 Hubei Peoples R China;

Wuhan Univ Key Lab Hydraul Machinery Transients Minist Educ Wuhan Hubei Peoples R China|Wuhan Univ Hubei Key Lab Waterjet Theory & New Technol Wuhan Hubei Peoples R China|Wuhan Univ Sch Power & Mech Engn Dong Hu South Rd Wuhan 430072 Hubei Peoples R China;

China Univ Petr Coll Pipeline & Civil Engn Qingdao Shandong Peoples R China;

Wuhan Univ Key Lab Hydraul Machinery Transients Minist Educ Wuhan Hubei Peoples R China|Wuhan Univ Hubei Key Lab Waterjet Theory & New Technol Wuhan Hubei Peoples R China|Wuhan Univ Sch Power & Mech Engn Dong Hu South Rd Wuhan 430072 Hubei Peoples R China;

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正文语种 eng
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关键词
Lid-driven mixed convection; Porous fins; Position of porous fins; Full numerical modeling; Heatlines;

机译：盖上的混合对流;多孔鳍;多孔鳍的位置;全数型号;热线;

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1. Mixed convection and heat flow characteristics in a lid-driven enclosure with porous fins: Full numerical modeling and parametric investigations [J] . Lei Wang, Wei-Wei Wang, Yang Cai, Numerical Heat Transfer, Part A. Application: An International Journal of Computation and Methodology . 2020,第1a6期

机译：具有多孔鳍片的盖子驱动外壳中的混合对流和热流特性：全数字建模和参数调查
2. Numerical study of the fin effect on mixed convection heat transfer in a lid-driven cavity [J] . A. A. R. Darzi, M. Farhadi, K. Sedighi Proceedings of the Institution of Mechanical Engineers, Part C. Journal of mechanical engineering science . 2011,第2期

机译：翅片对盖子驱动腔内混合对流传热影响的数值研究
3. Numerical Simulation on Mixed Convection in a Porous Lid-Driven Cavity with Nonuniform Heating on Both Side Walls [J] . S. Sivasankarana amp, K. L. Pana* Numerical Heat Transfer, Part A: Applications . 2012,第2期

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4. Numerical Study of MHD Mixed Convection Heat Transfer of Nanofluid in a Lid-driven Porous Rectangular Cavity with Three Square Heating Blocks [C] . M. Humaun Kabir, M. Jahirul Haque Munshi, Nazma Parveen BSME International Conference on Thermal Engineering . 2019

机译：三方加热块盖上多孔矩形腔中纳米流体MHD混合对流传热的数值研究
5. AN EXPERIMENTAL STUDY OF TRANSITION TO TURBULENCE IN VERTICAL MIXED CONVECTION FLOWS AND ANALYSES OF LAMINAR MIXED CONVECTION IN PLUMES AND IN WALL PLUMES (HEAT TRANSFER, FLUID MECHANICS, NATURAL). [D] . KRISHNAMURTHY, RAMESH. 1985

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6. Effects of a Rotating Cone on the Mixed Convection in a Double Lid-Driven 3D Porous Trapezoidal Nanofluid Filled Cavity under the Impact of Magnetic Field [O] . Ali J. Chamkha, Fatih Selimefendigil, Hakan F. Oztop 2020

机译：旋转锥对磁场作用下双盖驱动3D多孔梯形纳米流体填充腔内混合对流的影响
7. Numerical simulation of mixed convection heat transfer of nanofluid in a double lid-driven cavity using lattice Boltzmann method [O] . Ahmad Reza Rahmati, Ali Rayat Roknabadi, Mahmoud Abbaszadeh 2016

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Effects of Porous Fins on Mixed Convection and Heat Transfer Mechanics in Lid-Driven Cavities: Full Numerical Modeling and Parametric Simulations

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