Heat transfer from a flat plate to a turbulent axisymmetric impinging jet

被引：22

作者：

AshforthFrost, S

Jambunathan, K

Whitney, CF

Ball, SJ

机构：

[1] Department of Mechanical and Manufacturing Engineering, Nottingham Trent University, Nottingham

[2] European Gas Turbines Limited, Mechanical Engineering Centre, Whetstone, Leicester

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE | 1997年 / 211卷 / 02期

关键词：

jet impingement; heat transfer; liquid crystal thermography; forced convection;

D O I：

10.1243/0954406971521746

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The heat transfer due to a single axisymmetric impinging jet at a Reynolds number of 20 000 and nozzle-to-plate spacings of 1-8 has been determined using a combined constant heat flux/constant temperature electrocaloric test plate. Both unconfined and semi-confined geometries have been considered for a uniform mean exit velocity. The exit conditions and axial development of the jet have been quantified using hot-wire anemometry. Careful design of the composite heater plate has reduced experimental uncertainties in the local Nusselt number to 5 per cent.

引用

页码：167 / 172

页数：6

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