Particle deposition characteristics and film cooling performance of flat plate with trench

被引：0

作者：

You X. ^{[1
]}

Yue G. ^{[1
]}

Wang S. ^{[1
]}

Zhang L. ^{[1
]}

Jiang Y. ^{[1
]}

机构：

[1] College of Power and Energy Engineering, Harbin Engineering University, Harbin

来源：

Hangkong Dongli Xuebao/Journal of Aerospace Power | 2021年 / 36卷 / 05期

关键词：

Depositional model; Film cooling efficiency; Gas-solid two phase flow; Particle deposition; Trench;

D O I：

10.13224/j.cnki.jasp.2021.05.013

中图分类号：

学科分类号：

摘要：

The effects of different trench depths on the particle deposition distribution and film cooling performance of the flat plate were explored by embedding the cooling holes into the trench. The result showed that the existence of the trench structure improved the particle deposition and film cooling performance on the flat plate, and effectively blocked certain particles inside the trench. Under the same blowing ratio, the increase of the trench depth made the overall particle impact efficiency increase. When the blowing ration was relatively small, the three trench depth structures all reduced the particles deposition and capture on the flat plate, and improved the downstream film cooling efficiency of the cooling holes. However, under the large blowing ratio, different trench depths had different performances on particle deposition distribution and film cooling efficiency. Comparing the performance of different trench depth structures under various working conditions, the structure with a trench depth of 0.8 times film cooling hole diameter improved the particle deposition distribution and can also promote the downstream film cooling efficiency of the cooling holes. © 2021, Editorial Department of Journal of Aerospace Power. All right reserved.

引用

页码：1022 / 1032

页数：10

共 18 条

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