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| 纵流式换热器壳侧支撑方式的数值研究 | |
| 引用本文： | 汪淑奇,黄素逸. 纵流式换热器壳侧支撑方式的数值研究[J]. 化工学报, 2007, 58(5): 1097-1103 |
| 作者姓名： | 汪淑奇 黄素逸 |
| 作者单位： | 华中科技大学能源与动力工程学院,湖北,武汉,430074;长沙理工大学能源与动力工程学院,湖南,长沙,410076;华中科技大学能源与动力工程学院,湖北,武汉,430074 |
| 基金项目： | 高等学校博士学科点专项科研项目 |
| 摘 要： | 提出了一种纵流式换热器壳侧交错短杆支撑方式，并对光滑传热管束的交错短杆、短管、方形折流杆3种管间支承方式及波纹管束自支承、混合管束自支承方式，在流动与传热充分发展区段，采用湍流模型、六面体网格，运用商业软件FLUENT进行了三维数值计算。对各种支撑方式在不同的支撑间距（Ls=4.56和9.13）、不同的Reynolds数（Re＝2630、13150、26300、52600）下的传热特性、流动阻力特性、支撑的可靠性进行了优化研究。得出了各种支撑方式的壳侧Nu、压降及综合指标-h/（LΔp）与Re的关系。 |
| 关 键 词： | 强化传热 数值研究 壳程纵流式换热器 管子支撑方式 压降 |
| 文章编号： | 0438-1157（2007）05-1097-07 |
| 收稿时间： | 2006-03-08 |
| 修稿时间： | 2006-03-082006-08-03 |
Numerical investigation on shell side support of longitudinal flow heat exchanger |
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| WANG Shuqi,HUANG Suyi. Numerical investigation on shell side support of longitudinal flow heat exchanger[J]. Journal of Chemical Industry and Engineering(China), 2007, 58(5): 1097-1103 | |
| Authors: | WANG Shuqi HUANG Suyi |
| Affiliation: | 1 School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei , China; 2School of Energy and Power Engineering, Changsha University of Science and Technology, Changsha 410076, Hunan, China |
| Abstract: | A new type of staggered short rod support in the shell side of a longitudinal flow heat-exchanger was proposed.Numerical investigation was performed for short rod, short tube, square rod baffle supports and self-supports of wave-tube bundles and mixed tube bundles in the fully developed flow and heat transfer zone by using the turbulent model and hexahedron grid with the commercial software FLUENT.For each support the heat transfer，resistance, aggregative indicator -h/（LΔp）and the reliability for different values of support space (Ls=4.56, 9.13) and different Re(Re＝2630,13150,26300,52600) were investigated. |
| Keywords: | heat transfer enhancement numerical investigation longitudinal flow shell side heat exchanger tube support pressure drop |
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