涡轮叶片弦中区扰流柱强化换热实验

张镜洋; 常海萍

Chinese

您当前的位置：

首页 >

文章列表页 >

涡轮叶片弦中区扰流柱强化换热实验

首届试验仿真与数据挖掘测试与分析会议（624） | 更新时间：2026-07-07

- 涡轮叶片弦中区扰流柱强化换热实验
- Experiment about heat transfer characteristic of midchord region of turbine blade with pin-fin arrays
- 航空动力学报 2010年25卷第3期
- 作者机构：
  
  南京航空航天大学能源与动力学院,南京,210016
- 作者简介：
- 基金信息：
- DOI：
  中图分类号：
- 纸质出版：2010
- 稿件说明：
移动端阅览
张镜洋, 常海萍. 涡轮叶片弦中区扰流柱强化换热实验[J]. 航空动力学报, 2010,25(3).

ZHANG Jing-yang, CHANG Hai-ping. Experiment about heat transfer characteristic of midchord region of turbine blade with pin-fin arrays[J]. 2010, 25(3).
张镜洋, 常海萍. 涡轮叶片弦中区扰流柱强化换热实验[J]. 航空动力学报, 2010,25(3). DOI：

ZHANG Jing-yang, CHANG Hai-ping. Experiment about heat transfer characteristic of midchord region of turbine blade with pin-fin arrays[J]. 2010, 25(3). DOI：

摘要

针对涡轮叶片弦中区扰流柱支撑冲击导管的冷却结构建立实验模型

研究了随冲击雷诺数

横流射流密流比

冲击孔靶间距与冲击孔径比等参数的改变

叶片内壁面的换热特性变化规律.并与传统的弦向肋支撑冲击导管冷却结构的光滑壁面换热特性进行对比

重点研究了弦中区扰流柱的强化换热特性.结果表明:弦中区扰流柱明显降低了叶片前缘和前排冲击产生的初始横流削弱换热的负面作用

前缘或前排冲击产生的初始横流可以有效地增强其后部的换热努塞尔数

扰流柱支撑结构所表现出的换热效率优于传统的大间距弦向肋支撑结构.

Abstract

Based on midchord region model of tubine blade whose impinging tube is supported by pin-fin arrays

the heat transfer rules of the wall with pin-fin was acquired

and then the heat transfer characteristic was compared with that of the model whose tube is supported by rib along the flow direction.Various impinging Reynolds numbers

density flow ratios of initial cross flow to impinging jet flow and impinging distance to impinging jet hole diameter were analyzed.The results show that: pin-fin arrays could decrease the negative influence of the initial cross flow on the heat transfer and the initial cross flow could strengthen the efficiency of heat transfer of the region after the cross flow.The heat transfer efficiency of the model with pin-fin arrays is higher than the model with rib along the flow direction.

关键词

Keywords

references

浏览量

472

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

旋转条件下“冲击/出流”双层壁内部换热实验

稀疏气膜冷气侧局部换热特性实验

非等直径柱肋阵列的冷却特性

带锯齿形叶冠叶片接触应力计算及静强度分析

涡轮叶片早期裂纹的三维叶尖间隙EEMD能量熵融合诊断方法