Numerical and Physical Simulation of Heat Transfer Enhancement Using Vortex Generators

被引：0
|
作者：
Mironov, A. A. [1 ]
Isaev, S. A. [2 ]
Popov, I. A. [1 ]
Skrypnik, A. N. [1 ]
Dushin, N. S. [3 ]
Mikheev, N., I [3 ]
机构：
[1] Kazan Natl Res Tech Univ, Kazan, Russia
[2] St Peterburg State Univ Civil Aviat, St Petersburg, Russia
[3] Russian Acad Sci, Kazan Sci Ctr, Kazan, Russia
来源：
XXXVI SIBERIAN THERMOPHYSICAL SEMINAR (STS 36) | 2020年 / 1677卷
基金：
俄罗斯基础研究基金会;
关键词：
OVAL-TRENCH DIMPLE; DEPTH; FLOW;
D O I：
10.1088/1742-6596/1677/1/012022
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Vortex generation and flow disruption in fluid ducts by means of surface modification is a widely used passive heat transfer augmentation technique. The present paper contains the results of numerical and experimental studies of the flow fields and heat transfer enhancement in the ducts with oval-trench and oval-arc shaped dimples applied to the heat transfer surface. The results of the numerical study of the flow over the dimpled surface with periodic boundaries are verified by experimental visualization of the flow and temperature fields. The influence of characteristic geometrical parameters of the dimples on the heat transfer, friction factor, and flow structure in heat-exchange ducts has been obtained. Preliminary results on the artificial neural networks application on heat transfer and friction factor assessment for the flow over dimpled surfaces are presented.
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页数：10
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