Study on Numerical Method of Thermal-Fluid-Structure Coupling for Turbine Blades and Its Application

WANG Xiangyu; GAO Shanghong; FENG Zhenping

doi:10.7652/xjtuxb202503003

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Study on Numerical Method of Thermal-Fluid-Structure Coupling for Turbine Blades and Its Application

更新时间：2026-01-06

- Study on Numerical Method of Thermal-Fluid-Structure Coupling for Turbine Blades and Its Application
- Journal of Xi’an Jiaotong University Vol. 59, Issue 3, Pages: 21-33(2025)
- 作者机构：
  
  西安交通大学能源与动力工程学院， 710049，西安
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202503003
  CLC： V235.1
- Received：21 June 2024，
  
  Online First：02 January 2025，
  
  Published：10 March 2025
- 稿件说明：
移动端阅览
WANG Xiangyu, GAO Shanghong, FENG Zhenping. Study on Numerical Method of Thermal-Fluid-Structure Coupling for Turbine Blades and Its Application[J]. Journal of Xi’an Jiaotong University, 2025, 59(3): 21-33.
DOI：

WANG Xiangyu, GAO Shanghong, FENG Zhenping. Study on Numerical Method of Thermal-Fluid-Structure Coupling for Turbine Blades and Its Application[J]. Journal of Xi’an Jiaotong University, 2025, 59(3): 21-33. DOI： 10.7652/xjtuxb202503003.

摘要

针对航空发动机高压涡轮叶片缺乏有力的热流固耦合分析工具的现状，构建了集流动、换热与振动于一体的多物理场耦合数值模拟基础框架与计算方法。依托双重运动方法和动网格技术，使用跨求解器的弱耦合方法实现了动静交错环境下带陶瓷涂层动叶的热、流、固耦合数值分析。计算分析了简化约束条件的涡轮叶片在多物理场环境下的振动特性，获得了涡轮叶片重要的热流固特性及其变化规律。结果表明：涡轮叶片在热流固耦合环境下的振动形态为一阶弯曲及扭转振动形态的混合，其最大位移为0.209 mm；动叶的变形会进一步显著影响作用在叶片上的气动力和热负荷，叶尖附近的静压变化达9.44%，热流密度变化达39.7%；陶瓷涂层对热流固耦合条件下振动特性的影响极小。

Abstract

To address the current lack of effective thermo-fluid-structure coupling analysis tools for high-pressure turbine blades in aircraft engines

a multi-physics field coupling numerical simulation framework and computational method integrating flow

heat transfer

and vibration are developed. Leveraging the dual-motion method and dynamic mesh technology

a weak coupling approach across solvers is employed to achieve thermal-fluid-structure coupling numerical analysis of moving blades with ceramic coatings in a dynamic-steady alternating environment. The vibration characteristics of turbine blades under multi-physics field environments with simplified boundary conditions are computationally analyzed

revealing crucial thermal-fluid-structural properties and their variations. Results indicate that under the thermal-fluid-structure coupling environment

blade vibration exhibits a mix of first-order bending and torsional modes

with a maximum displacement of 0.209 mm. Blade deformation further significantly affects aerodynamic forces and thermal loads acting on the blade

with static pressure changes near the blade tip reaching 9.44% and heat flux density variations of 39.7%. The impact of ceramic coatings on vibration characteristics under thermal-fluid-structure coupling conditions is minimal.

关键词

Keywords

references

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