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《Journal of Engineering Thermophysics》 2006-01
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POTENTIAL CAPACITY DISSIPATION EXTREMUM AND ENTROPY GENERATION MINIMIZATION IN LAMINAR CONVECTIVE HEAT TRANSFER

WU Jing CHENG Xin-Guang MENG Ji-An GUO Zeng-Yuan (School of Aerospace, Tsinghua University, Heat Transfer and Energy Conversion-The Key Laboratory of Beijing Municipality, Beijing 100084, China)  
Under some constraint condition, there is an optimum velocity field which can make the synergy between temperature and velocity field, so as to optimize the whole capability in convective heat transfer. At present, entropy generation minimization and potential capacity dissipation extremum are the two principles to value heat transfer performance. Under the condition of constant viscous dissipation, the field synergy equations are induced for steady laminar convective heat transfer by the variational principle to optimize convective heat transfer in square cavity. The numerical results show that heat transfer rate obtained by potential capacity dissipation extremum is better.
【Fund】: 国家“973”重点基础研究项目(No.G2000026301)
【CateGory Index】: TK124
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1 CHENG Xin-Guang MENG Ji-An GUO Zeng-Yuan (School of Aerospace, Tsinghua University, Beijing 100084, China);POTENTIAL CAPACITY DISSIPATION MINIMIZATION AND ENTROPY GENERATION MINIMIZATION IN HEAT CONDUCTION OPTIMIZATION[J];Journal of Engineering Thermophysics;2005-06
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1 CHEN Qun REN Jian-Xun (School of Aerospace,Tsinghua University,Heat Transfer and Energy Conversation-The Key Laboratory of Beijing Municipality;Beijing 100084,China);MASS TRANSFER POTENTIAL CAPACITY DISSIPATION EXTREMUM PRINCIPLE AND DECONTAMINATION VENTILATION OPTIMIZATION[J];Journal of Engineering Thermophysics;2007-03
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7 CHENG Xin-Guang MENG Ji-An GUO Zeng-Yuan (School of Aerospace, Tsinghua University, Beijing 100084, China);POTENTIAL CAPACITY DISSIPATION MINIMIZATION AND ENTROPY GENERATION MINIMIZATION IN HEAT CONDUCTION OPTIMIZATION[J];Journal of Engineering Thermophysics;2005-06
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