Numerical Simulation of Particle Deposition Characteristics of High Pressure Turbine Blades

被引：0

作者：

Yang X.-J. ^{[1
]}

Liu W.-B. ^{[1
]}

Hu Y.-Q. ^{[2
]}

Liu X.-H. ^{[1
]}

机构：

[1] School of Aeronautical Engineering, Civil Avation University of China, Tianjin

[2] School of Energy and Power Engineering, Beihang University, Beijing

来源：

Tuijin Jishu/Journal of Propulsion Technology | 2022年 / 43卷 / 11期

关键词：

Deposited surface; Deposition model; Gas-solid two-phase flow; Particle deposition; Turbine blade;

D O I：

10.13675/j.cnki.tjjs.210516

中图分类号：

学科分类号：

摘要：

In order to study the deposition characteristics of particles on the high-pressure turbine guide vanes，a corresponding model is established for the adhesion and detachment of particles on the deposited and undeposited walls，and the deposition process of particles is simulated numerically in the corresponding environment by using Fluent’s user defined function（UDF）and mesh reconstruction technology. The effects of the sparseness of the particles on the deposition surface and the particle radius of the deposition surface on the deposition characteristics are investigated. The results show that the deposition of particles and the entrapment of small particles occur mostly at the leading edge of the turbine blade pressure surface.Under the same working condition，the contact mode between particles and the deposition wall，the particle spacing w and the radius Rm of particle on the deposition surface have less influence on the deposition distribution.With the increase of w，the deposition thickness decreases，the number of detachment particle decreases，and the number of particles caught in the deposition wall increases.The effects of increasing the radius of curvature of the surface on deposition have the same trend as the change of w. When the particle radius of the deposition wall is too large，the deposition volume will drop abruptly. © 2022 Journal of Propulsion Technology. All rights reserved.

引用

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