| 非对称波纹通道内流动与传热的数值计算 |
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| 引用本文： | 阴继翔,杨刚,郭瑞,吕萍.非对称波纹通道内流动与传热的数值计算[J].太原理工大学学报,2011,42(1):20-24. |
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| 作者姓名： | 阴继翔 杨刚 郭瑞 吕萍 |
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| 作者单位： | 1. 太原理工大学,电气与动力工程学院,太原,030024
2. 太原电力专科学校,太原,030025 |
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| 基金项目： | 山西省自然科学基金资助项目(2007011062) |
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| 摘 要： | 以空气为介质,在雷诺数Re=50~1 100的范围内对非对称的三角形、正弦形和椭圆形波纹通道内稳态层流流动与换热进行数值模拟,分析了恒壁温条件下,Re、波纹板形状对流动与换热特性的影响,并拟合出了各通道内阻力系数f及表面换热特性数Nu随Re变化的关联式,同时对3种波纹通道的综合性能G进行了分析评价。结果表明,椭圆形通道的f最大;Re<500时三角形通道的f最小;在Re>300后椭圆形通道表面的Nu值最大;各通道的综合性能,以Re=900为界,在小Re时以正弦形通道性能最佳,椭圆通道的最差,大Re时椭圆通道的性能最佳。
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| 关 键 词： | 流动特性 换热强化 非对称波纹通道 数值模拟 |
Numerical Calculation of Fluid Flow and Heat Transfer in Asymmetrical Wavy Channels |
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| YIN Ji-xiang,YANG Gang,GUO Rui,LV Ping.Numerical Calculation of Fluid Flow and Heat Transfer in Asymmetrical Wavy Channels[J].Journal of Taiyuan University of Technology,2011,42(1):20-24. |
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| Authors: | YIN Ji-xiang YANG Gang GUO Rui LV Ping |
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| Institution: | YIN Ji-xiang1,YANG Gang1,GUO Rui2,LV Ping1(1.College of Electrical & Power Engineering,TUT,Taiyuan 030024,China,2.Taiyuan Electric Power College,Taiyuan 030025,China) |
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| Abstract: | A numerical calculation of steady laminar fluid and heat transfer in periodically corrugated asymmetrical sinusoidal,triangular,elliptical wavy channels was conducted for air in the range of Re=50~1 100.The influences of the channel surface shape as well as Reynolds numbers(Re) on the flow and heat transfer performance were researched with uniform wall temperature.The correlations of friction factor(f) and average Nusselt numbers(Nu) with Reynolds numbers were obtained for different wavy channels.Moreover,t... |
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| Keywords: | flow characteristics heat transfer enhancement wavy channel numerical simulation |
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