Heat Transfer Decay Characteristics Downstream of a Vortex Generator

被引：0
作者：
Dang, Wei [1 ,2 ,3 ]
Deng, Wen-Qiang [1 ,2 ]
Song, Ke-Wei [1 ,2 ]
Wang, Liang-Bi [1 ,2 ]
机构：
[1] Lanzhou Jiaotong Univ, Sch Mech Engn, Lanzhou 730070, Peoples R China
[2] Lanzhou Jiaotong Univ, Key Lab Railway Vehicle Thermal Engn MOE, Lanzhou 730070, Gansu, Peoples R China
[3] Key Lab Serv Environm & Intelligent Operat & Main, Lanzhou 730070, Gansu, Peoples R China
来源：
ADVANCES IN COMPUTATIONAL HEAT AND MASS TRANSFER, ICCHMT 2023, VOL 1 | 2024年
基金：
中国国家自然科学基金;
关键词：
Decay characteristics; Longitudinal vortices; Vortex generator; TRANSFER ENHANCEMENT; SURFACE MODIFICATION; FIN; CHANNEL; EXCHANGERS;
D O I：
10.1007/978-3-031-67241-5_50
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This paper reports a numerical investigation of heat transfer decay characteristics in a plate channel with delta winglet vortex generator (DWVG) under the turbulent. The angle of attack of DWVG are investigated. Effects of geometry of vortex generator on heat transfer decay characteristics downstream of DWVG were carried out computationally at different Reynolds numbers. It was found that the Nusselt number increase with the increasing attack angle of the DWVG. The longitudinal vortex can transmit a long distance and decay continuously along the main stream, the longitudinal distance between the vortex generators is smaller than that of the distance of longitudinal vortex decay in order to ensure that the longitudinal vortex has a certain strength.
引用
收藏
页码：555 / 566
页数：12
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