| 倾斜多孔腔体内瞬态自然对流的实验研究 |
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| 引用本文： | 曾敏,任毓程,王刚,王秋旺.倾斜多孔腔体内瞬态自然对流的实验研究[J].工程热物理学报,2011(3):505-508. |
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| 作者姓名： | 曾敏 任毓程 王刚 王秋旺 |
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| 作者单位： | 西安交通大学热流科学与工程教育部重点实验室;兰州理工大学土木工程学院; |
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| 基金项目： | 国家自然科学基金项目(No.50806056); 中国高校博士点基金(No.20090201110009) |
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| 摘 要： | 本文对充满水和玻璃球的倾斜多孔介质腔体,在其一侧壁温维持恒定值、而相对侧壁温以此恒定值为时均值并按一定的幅值随时间周期性变化的情况下,实验研究了周期性壁温变化和腔体倾角对多孔介质腔体内的瞬态自然对流换热的影响.结果表明,通过多孔介质腔体的净热流总是从腔体的较低壁面指向较高壁面.
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| 关 键 词： | 自然对流 多孔介质 倾斜腔体 周期性壁温 净热流 |
Experimental Study on Transient Natural Convection of Porous Media in an Inclined Enclosure |
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| ZENG Min REN Yu-Cheng WANG Gang WANG Qiu-Wang.Experimental Study on Transient Natural Convection of Porous Media in an Inclined Enclosure[J].Journal of Engineering Thermophysics,2011(3):505-508. |
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| Authors: | ZENG Min REN Yu-Cheng WANG Gang WANG Qiu-Wang |
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| Institution: | ZENG Min~1 REN Yu-Cheng~1 WANG Gang~(1,2) WANG Qiu-Wang~1 (1.Key Laboratory of Thermal Fluid Science and Engineering of MOE,Xi'an Jiaotong University Xi'an 710049,China,2.School of Civil Engineering,Lanzhou University of Technology,Lanzhou 730050,China) |
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| Abstract: | In the present paper,the effects of wall temperature oscillation and inclined angle of enclosure on the transient heat transfer performance of natural convection are experimentally studied in the porous media enclosure.The enclosure is filled with water and glass balls.For one side wall, the temperature is kept as constant,while it varies time-periodically for the opposing side wall.The result indicates that the net heat flux across the porous media enclosure is always transferred from the lower side wall t... |
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| Keywords: | natural convection porous media inclined enclosure time-periodic wall temperature net heat flux |
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