Heat transfer in transitional and turbulent boundary layers with system rotation

被引：6

作者：

Yamawaki, D ^{[1
]}

Obi, S ^{[1
]}

Masuda, S ^{[1
]}

机构：

[1] Keio Univ, Fac Sci & Technol, Dept Mech Engn, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan

来源：

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW | 2002年 / 23卷 / 02期

关键词：

heat transfer; flat plate boundary layer; system rotation; coriolis force; centrifugal buoyancy; goertler instability; liquid crystal;

D O I：

10.1016/S0142-727X(01)00148-5

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The present paper reports on the influence of system rotation oil the heat transfer characteristics of transitional and turbulent zero-pressure gradient boundary layers. A test plate is installed in a wind tunnel. hi :h is rotatable around the axis parallel to the plate leading edge with constant speed of rotation. Local heat transfer coefficient during rotation is determined by employing a thermochromic liquid crystal. Effects of the Coriolis force and the Centrifugal buoyancy force hake been examined by comparing the heat transfer coefficient with different free-stream velocities, rotational speeds and wall temperatures. It has been revealed that the Coriolis force has significant effect on transitional heat transfer, while its effect oil turbulent heat transfer is moderate. The centrifugal buoyancy exhibits additional effects if the thermal loading is high. (C) 2002 Elsevier Science Inc. All rights reserved.

引用

页码：186 / 193

页数：8

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