Experimental and numerical study of the effect of conjugate heat transfer on film cooling

被引：10

作者：

Lu, Ben ^{[1
]}

Peng, Wei ^{[1
,2
]}

Jiang, Pei-Xue ^{[1
]}

Wang, Jie ^{[2
]}

Wang, Yang-Ping ^{[1
,3
]}

机构：

[1] Tsinghua Univ, Dept Thermal Engn, Key Lab Thermal Sci & Power Engn, Minist Educ, Beijing 100084, Peoples R China

[2] Tsinghua Univ, Inst Nucl & New Energy Technol, Collaborat Innovat Ctr Adv Nucl Energy Technol, Key Lab Adv Reactor Engn & Safety,Minist Educ, Beijing, Peoples R China

[3] SIPO, Patent Examinat Cooperat Ctr Beijing, Beijing, Peoples R China

来源：

EXPERIMENTAL HEAT TRANSFER | 2017年 / 30卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Film cooling; coolant crossflow; conjugated heat transfer; experiment; numerical simulation; COOLANT CROSS-FLOW; LIQUID-CRYSTAL THERMOGRAPHY; TRANSFER COEFFICIENT; CHANNELS; STREAM; HOLES; WALL;

D O I：

10.1080/08916152.2017.1283374

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Combined convection heat transfer and thermal conduction for film cooling of a flat plate with 45 degrees ribs on one wall was investigated experimentally and numerically. The flat plate surface temperature was measured using thermochromic liquid crystals. The results show that the film cooling is the main mechanism for the local cooling with a very low thermal conductivity while the convection heat transfer of the coolant in the coolant channel is the dominant heat transfer mechanism for the high thermal conductivity plate, with both film cooling and convection heat transfer by the coolant being important with medium thermal conductivity walls.

引用

页码：355 / 368

页数：14

共 31 条

[1] THE EFFECT OF DENSITY RATIO ON THE HEAT-TRANSFER COEFFICIENT FROM A FILM-COOLED FLAT-PLATE [J].