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波壁管几何尺寸对流动与传热特性的影响

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Indexed by:期刊论文

Date of Publication:2018-08-15

Journal:热科学与技术

Volume:17

Issue:4

Page Number:283-289

ISSN No.:1671-8097

Key Words:波壁管;波长;波幅;强化传热

Abstract:基于数值模拟的方法,分析在低雷诺数下波壁管波形变化对流体流动与传热特性的影响,并分析了相同功耗下波壁管的综合传热性能.结果表明:波幅和波长变化对波壁管传热均有影响,强化效果与波幅成正比,与波长成反比;当功耗相同时,小波幅的波壁管有较好的综合换热效果,大波幅的波壁管强化传热以较大能量消耗作为代价;雷诺数大于2000时,增大波长能达到较好的综合换热效果.

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