An experimental study on reducing depositing on turbine vanes with transverse trenches

Zhengang Liu, Fei Zhang, Zhenxia Liu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Particles depositing is a severe damage to turbine vanes. The depositing on upper surface for the plate models with film cooling configuration is experimentally studied for the attack angle −5º with a kind of wax, which is melted and atomized to generate particles. Some models are trenched along the row of film cooling holes to study the effects of different trenches with different depths on the depositing. All the trenches could distribute the depositing on the near downstream of the row of film cooling holes more uniformly and the deeper trench could make the depositing on this area more uniform. When the blowing ratio is 0.98, all the trenches could decrease the depositing on the upper surface and the depositing mass decreases with the trench depth increasing. When the blowing ratio is 1.47, all the trenches increase the depositing on the upper surface although the increment is not vary large and the depositing mass increases with the trench depth increasing. However, even if the blowing ratio is 1.47, the trench may reduce the negative effect of the depositing on turbine vanes since it could delay the depositing to the area far from the row of film cooling holes.

Original languageEnglish
Title of host publicationThe Proceedings of the Asia-Pacific International Symposium on Aerospace Technology, APISAT 2018
EditorsXinguo Zhang
PublisherSpringer Verlag
Pages1707-1716
Number of pages10
ISBN (Print)9789811333040
DOIs
StatePublished - 2019
EventAsia-Pacific International Symposium on Aerospace Technology, APISAT 2018 - Chengdu, China
Duration: 16 Oct 201818 Oct 2018

Publication series

NameLecture Notes in Electrical Engineering
Volume459
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

ConferenceAsia-Pacific International Symposium on Aerospace Technology, APISAT 2018
Country/TerritoryChina
CityChengdu
Period16/10/1818/10/18

Keywords

  • Depositing
  • Multiphase flow
  • Trench

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