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高Ra数条件下室内自然对流形态的实验研究

An Experimental Study for High Rayleigh Number Flow Pattern in a Building Interior Space
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摘要 对建筑物内自然对流气流形态进行了可视化研究。实验在一长方形房间内进行 ,相对的两个壁面分别加热和冷却 ,顶部和底部隔热 ,使Ra数达到 10 10 - 10 11范围 ,实验发现顶部和底部出现了两个旋涡。此现象与过去大多数理论研究和数值计算结果不同 ,其未知因素有待进一步研究。 Inspects the flow pattern of natural convection in a building interior space in which two faced walls are heated and cooled,and the Rayleigh number varies from 10~10 to 10~11 .There are two Vortexes have been found.It conflicts with most theoretic and numeral studies before.There must be some unknown parameters to be further studied.
机构地区 华中科技大学
出处 《建筑热能通风空调》 2001年第3期4-6,共3页 Building Energy & Environment
基金 国家重点基础研究发展规划项目 (G2 0 0 0 0 2 630 3)
关键词 高Ra数 自然对流 气流形态 建筑 实验 high Rayleigh number,natural convection ,flow pattern
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参考文献9

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