Numerical Research on the Swirl Cooling Using Thermal-Fluid-Structure Coupled Method for Turbine Blade Leading Edge

doi:10.7652/xjtuxb202001017

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Numerical Research on the Swirl Cooling Using Thermal-Fluid-Structure Coupled Method for Turbine Blade Leading Edge

更新时间：2025-07-09

- Numerical Research on the Swirl Cooling Using Thermal-Fluid-Structure Coupled Method for Turbine Blade Leading Edge
- Vol. 54, Issue 1, Pages: 135-142(2020)
- 作者机构：
  
  西安交通大学叶轮机械研究所,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202001017
  CLC： TK474.7
- Online First：10 January 2020，
  
  Published：2020
- 稿件说明：
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Numerical Research on the Swirl Cooling Using Thermal-Fluid-Structure Coupled Method for Turbine Blade Leading Edge[J]. 2020, 54(1): 135-142.
DOI：

Numerical Research on the Swirl Cooling Using Thermal-Fluid-Structure Coupled Method for Turbine Blade Leading Edge[J]. 2020, 54(1): 135-142. DOI： 10.7652/xjtuxb202001017.

摘要

为了探究旋流冷却的热流固特性

建立了旋流冷却热流固耦合模型和纯流体模型

在相同边界条件下对两种模型的旋流冷却性能进行了对比研究

同时分析了热流固耦合模型温度场与结构场的分布特性。研究结果表明:固体壁面导热对冷气的流动影响较小

但对流体区域的换热会产生一定影响

热流固耦合模型下靶面的换热强度分布更为均匀

沿冷气流动方向高低换热区域的换热强度差异逐渐减小

各喷嘴进口对应高换热区域的换热强度沿流动方向逐渐增大

热流固耦合模型下靶面的平均换热强度比纯流体模型减小了5.05%; 固壁导热对靶面温度有着显著影响

热流固耦合模型靶面温度分布比纯流体模型更为均匀; 热流固耦合模型固体区域的整体温度沿着冷气流动方向逐渐升高

整体应力则沿冷气流动方向先增大后减小

靠近叶根和叶顶的区域出现应力集中; 整体应变的变化趋势与整体应力变化趋势类似

但在固体传热面上

中部区域出现低应变区域。

Abstract

To analy-e the thermal-fluid-structure characteristics of swirl cooling

a thermal-fluid-structure coupled model and a fluid model were established. The swirl cooling performance for two models was compared under the same boundary conditions. The temperature and structure characteristics of the thermal-fluid-structure coupled model were analy-ed. Results showed that the solid wall heat transfer has little influence on the cooling air flow field

but the target wall heat transfer intensity is affected by the solid wall heat transfer to some extent. The target wall heat transfer intensity distribution for the thermal-fluid-structure coupled model is more uniform

while the solid wall heat transfer intensity between the high and low heat transfer regions decreases along the cooling air flow direction gradually. The heat transfer intensity of the high heat transfer region corresponding to swirl no--le inlets increases along the cooling air flow direction. The target wall average heat trans

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references

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