Influence of coolant crossflow on film cooling effectiveness of one-inlet and double-outlet injection holes

ZHANG Wei; LI Guangchao; KOU Zhihai; ZHAO Guochang

English Version Reader LoginJournal Login

您当前的位置：

首页 >

文章列表页 >

Influence of coolant crossflow on film cooling effectiveness of one-inlet and double-outlet injection holes

更新时间：2025-09-28

- Influence of coolant crossflow on film cooling effectiveness of one-inlet and double-outlet injection holes
- Thermal Power Generation Vol. 45, Issue 3, Pages: 64-69(2016)
- 作者机构：
  
  沈阳航空航天大学航空航天工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK471
- Published：2016
- 稿件说明：
移动端阅览
ZHANG Wei, LI Guangchao, KOU Zhihai, et al. Influence of coolant crossflow on film cooling effectiveness of one-inlet and double-outlet injection holes[J]. Thermal power generation, 2016, 45(3): 64-69.
DOI：

ZHANG Wei, LI Guangchao, KOU Zhihai, et al. Influence of coolant crossflow on film cooling effectiveness of one-inlet and double-outlet injection holes[J]. Thermal power generation, 2016, 45(3): 64-69. DOI：

摘要

采用Fluent软件和k-ε湍流模型

在主流雷诺数为9 600

吹风比分别为0.5

1.0

1.5和2.0

横流速度比分别为0.3

0.5和0.7条件下

对横流冷气气膜的冷却效率、流场和温度场进行三维数值模拟。结果表明:吹风比为1.0时

横流速度比对2个出口流量分配影响最明显;低吹风比(0.5)时

横流速度比对径向平均冷却效率和面平均冷却效率影响均非常小;中等吹风比(1.0)时

横流速度比增加使冷却效率减小;高吹风比(2.0)时

横流速度比对径向平均冷却效率分布影响比较复杂

对面平均冷却效率影响较小。

Abstract

The Fluent software was applied to carry out three dimensional simulation on film cooling efficiency of the coolant corssflow and flow and temperature field distributions of the injection hole

under conditions with the mainstream Reynolds number of 9600

the blowing ratio of 0.5

1.0and 2.0

and the crossflow velocity ratio of 0.3

0.5and 0.7.The results show that

with the blowing ratio of 1.0

the cross-flow velocity ratio affected the mass flow rate distribution at the two outlets the most.When the low blowing ratio is low(of 0.5)

the cross-flow ratios had weak influence on the film cooling effectiveness.At the moderate blowing ratio of 1.0

the film cooling effectiveness decreased when the cross-flow ratios increased.At the high blowing ratio of 2.0

the cross-flow ratios had complex influence on the laterally averaged film cooling effectiveness and weak influence on the surface averaged film cooling effectiveness.

关键词

Keywords

references

Views

151

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Investigation on film cooling effectiveness of fanned hole with broad outlet

Effect of wall thickness on film cooling effectiveness: numerical simulation

Effect of double rows of film holes interaction on film cooling efficiency

Study on film cooling flow characteristics of film holes in rounded corner crater

Numerical study on cooling performance of Nekomimi film holes

Related Author

LI Guangchao

CHEN Yukai

ZHANG Wei

KOU Zhihai

PENG Ningjian

MAO Xiaodong

ZHANG Guochen

LIN Zeqin

Related Institution

Liaoning Province Key Laboratory of Advanced Testing Technology for Aerospace Propulsion Systems, Shenyang University of Aeronautics and Astronautics

School of Mechanical Science and Engineering, Huazhong University of Science and Technology

Robotics College of Guangdong Institute of Technology

College of Mechanical and Transportation Engineering, Taiyuan University of Technology

School of Energy and Environment, Shenyang University of Aeronautics and Astronautics

AI问答

⁰