| 三维内肋管内流态的划分及过渡流判据的实验研究 |
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| 引用本文： | 刘红,廖光亚,高川云. 三维内肋管内流态的划分及过渡流判据的实验研究[J]. 工程热物理学报, 1998, 0(5) |
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| 作者姓名： | 刘红 廖光亚 高川云 |
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| 作者单位： | 重庆建筑大学城建学院!重庆，400045，重庆建筑大学城建学院!重庆，400045，重庆建筑大学城建学院!重庆，400045 |
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| 摘 要： | 1前言三维内肋管（见图1）已在许多文献中进行了研究[1～7]。其中文献[7]首次提出了三维内肋管的流态划分问题，指出应按人工粗糙管的流态模式合理地划分为层流区、临界区、过渡流区和旺盛湍流区，且其相邻两区的转换雷诺数都应与肋的几何结构有关。文献[7]主要研究了该管达旺盛湍流时的雷诺判据。本文将着重研究该管达过渡流的雷诺判据。2实验装置与实验方法实验装置如图2所示。实验管几何结构见表1。1．鼓风机2．滤网3LWQ－15型气体涡轮流量变送器（或LZJ－15型玻璃转子流量计）4．XSF－40流量指示积算仪5．调压变压器6．直管段7．UJ…
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| 关 键 词： | 三维内肋管 过渡流 |
EXPERIMENTAL INVESTIGATION OF DIVISION FOR FLOW PATTERNS AND REYNOLDS CRITERION FOR TRANSITIONAL FLOW IN 3-D INTERNALLY FINNED TUBES |
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| LIU Hong, LIAO Guangya, GAO Chuanyun. EXPERIMENTAL INVESTIGATION OF DIVISION FOR FLOW PATTERNS AND REYNOLDS CRITERION FOR TRANSITIONAL FLOW IN 3-D INTERNALLY FINNED TUBES[J]. Journal of Engineering Thermophysics, 1998, 0(5) |
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| Authors: | LIU Hong LIAO Guangya GAO Chuanyun |
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| Abstract: | This paper performs experiment on heat transfer and pressure drop in different 3-D internally finned tubes, investigates the transition from critical zone to transition zone. Four expressions about the Reynolds criterion for transition, the largest Fanning friction factor, the Nusselt number and Fanning friction factor have been obtained respectively. |
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| Keywords: | 3-D internally finned tube transition flow |
| 本文献已被 CNKI 等数据库收录！ |
