| 多孔介质传热传质中耦合扩散效应的研究 |
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| 引用本文： | 陈宝明,王补宣,张立强,耿文广.多孔介质传热传质中耦合扩散效应的研究[J].工程热物理学报,2004(Z1). |
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| 作者姓名： | 陈宝明 王补宣 张立强 耿文广 |
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| 作者单位： | [1]山东建筑工程学院 [2]清华大学热能工程系 [3]济南 |
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| 基金项目： | 国家自然科学基金资助项目(No.59806008) |
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| 摘 要： | 本文采用加罚函数有限元方法数值模拟在温度梯度和浓度梯度同时存在时双浮升力自然对流及其伴随的传热传质,着重探讨了多孔介质中传热传质的交叉耦合扩散Soret效应和Dufour效应的基本影响规律,展示了流场、温度场和浓度场随热附加扩散准则数和扩散附加热准则数的变化状况。
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| 关 键 词： | Soret效应 Dufour效应 自然对流 耦合扩散 传热传质 |
NUMERICAL STUDY ON SORET-EFFECT AND DUFOUR-EFFECT IN POROUS ENCLOSURE |
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| CHEN Bao-Ming WANG Bu-Xuan ZHANG Li-Qiang GENG Wen-Guang.NUMERICAL STUDY ON SORET-EFFECT AND DUFOUR-EFFECT IN POROUS ENCLOSURE[J].Journal of Engineering Thermophysics,2004(Z1). |
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| Authors: | CHEN Bao-Ming WANG Bu-Xuan ZHANG Li-Qiang GENG Wen-Guang |
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| Abstract: | The influences of Soret effect and Dufour effect on the naturai convection and heat and mass transfer for a porous enclosure were investigated by means of the penalty finite element method. Numerical results indicate that the Soret and Dufour effects have a significant influence on heat and mass transfer in the presence of large temperature gradient and concentration gradient. |
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| Keywords: | soret effect dufour effect natural convection double diffusive heat and mass transfer |
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