VORTEX HEAT TRANSFER ENHANCEMENT IN NARROW CHANNELS WITH A SINGLE OVAL-TRENCH DIMPLE ORIENTED AT DIFFERENT ANGLES TO THE FLOW

被引：24
|
作者：
Isaev, S. [1 ,2 ]
Leontiev, A. [3 ]
Chudnovsky, Y. [4 ]
Popov, I [2 ]
机构：
[1] St Petersburg State Univ Civil Aviat, 38 Pilotov Str, St Petersburg 196210, Russia
[2] Tupolev Kazan Natl Res Tech Univ, Kazan Aviat Inst, 10 K Marx Str, Kazan 420015, Tatarstan, Russia
[3] Bauman Tech Univ, 5 2nd Baumanskaya Str, Moscow 105005, Russia
[4] Gas Technol Inst, 1700 South Mt Prospect Rd, Des Plaines, IL 60018 USA
来源：
JOURNAL OF ENHANCED HEAT TRANSFER | 2018年 / 25卷 / 06期
基金：
俄罗斯基础研究基金会;
关键词：
vortex; heat transfer enhancement; oval-trench dimple; narrow channel; calculation; TRANSFORMER OIL FLOW; TURBULENT-FLOW; NUMERICAL-SIMULATION; REYNOLDS-NUMBER; MULTIOBJECTIVE OPTIMIZATION; COOLING CHANNEL; ASPECT-RATIO; INTENSIFICATION; LAMINAR; SURFACES;
D O I：
10.1615/JEnhHeatTransf.v25.i6.40
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
There are many passive techniques of heat transfer enhancement; however, only a few of them are capable of providing a reliable increase in a heat transfer rate exceeding an increase in pressure losses. One of such successful techniques is the profiling of a heat transfer surface with a regular arrangement of dimples. Detailed numerical simulation of fluid flow and heat transfer has been performed in a dimpled narrow channel at a Reynolds number of 10,000. The orientation of oval-french dimples on the heated surface has been evaluated numerically to establish the superior thermohydraulic performance over spherical dimples.
引用
收藏
页码：579 / 604
页数：26
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