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Heat Transfer Research
Fator do impacto: 0.404 FI de cinco anos: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimir: 1064-2285
ISSN On-line: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.2012005925
pages 669-693

AN ENTROPY PRODUCTION METHOD TO INVESTIGATE THE ACCURACY AND STABILITY OF NUMERICAL SIMULATION OF ONE-DIMENSIONAL HEAT TRANSFER

Haochun Zhang
School of Energy Science and Engineering, Harbin institute of Technology, Harbin, 150001, China
Y.-Y. Guo
School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, China
Y. Jin
Institute of Thermo-Fluid Mechanics, Hamburg University of Technology, 21073 Hamburg, Germany
Y. Li
Institute of Composite Material, Harbin Institute of Technology, Harbin, China

RESUMO

In this paper, an approach based on the entropy production theory is applied to investigate the accuracy and stability of numerical simulation of the heat transfer and fluid flow problems, constituting important parts of the simulation procedure. Using the formula of the entropy production of the fluid flow and heat transfer process, the accuracy and stability of numerical simulation are achieved by convergence of the entropy production profile. Various cases, as the one-dimensional steady heat conduction, steady convective heat transfer, and unsteady heat conduction, are evaluated by the current approach, and the approach is proved to be effective.


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