Heat Transfer Enhancement by Vortex Generators in Compact Channels

通过涡流发生器在紧凑通道中增强传热

• 批准号: 9209339
• 负责人: Raj Manglik
• 金额: --
• 依托单位: University of Cincinnati Main Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-09-01 至 1997-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9209339&HistoricalAwards=false
• 关键词: Heat; Transfer; Enhancement; Vortex; Generators

An experimental study is proposed to investigate the heat transfer enhancement due to longitudinal vortices in plate-fin channels of compact heat exchangers, generated by projections punched out of base fin material. Smoke injection and liquid crystal tracer particles would be used for flow and temperature field visualizations. Local and overall heat transfer coefficients and pressure drops would be obtained. Results would be documented in the form of correlations for f and Nu, that are developed on the basis of phenomenological assessment of the flow field.

本文提出了一项实验研究，探讨了紧凑式换热器板翅通道中纵向涡的强化换热特性。喷烟和液晶示踪粒子将用于流场和温度场的可视化。局部和整体传热系数和压降将得到。结果将以f和Nu的相关性的形式记录下来，这是在流场的现象学评估的基础上发展起来的。