EXPERIMENTAL AND COMPUTATIONAL STUDY OF TURBULENT HEAT-TRANSFER CHARACTERISTICS IN SERRATED CHANNEL FLOW

被引：1
|
作者：
OBI, S [1 ]
KOBAYASHI, KP [1 ]
BETHANCOURT, AM [1 ]
YOSHIDA, H [1 ]
ASANO, T [1 ]
ECHIGO, R [1 ]
机构：
[1] TOKYO INST TECHNOL,DEPT MECH ENGN & SCI,TOKYO 152,JAPAN
来源：
INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW | 1995年 / 16卷 / 05期
关键词：
TURBULENT FLOWS; SEPARATION AND IMPINGEMENT; HEAT TRANSFER AUGMENTATION; LASER DOPPLER ANENOMETRY MEASUREMENTS; APPLICATION OF TURBULENCE MODELS;
D O I：
10.1016/0142-727X(95)00048-U
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A two-dimensional (2-D) channel with a serrated wall is proposed as a device for heat transfer augmentation. Measurements of the flow velocity in the whole field as well as of the heat transfer coefficient along the wall are undertaken for two different channel heights, The same flow fields are calculated using a second-moment closure and the standard k-epsilon model. The flow field containing successive separation and reattachment partly resembles the conventional backward-facing step flow, although the extremely high turbulence level found in the present configuration indicates a promising performance of the serrated channel as a heat transfer promoter.
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页码：398 / 404
页数：7
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