Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Flow Measurements for Low Engine order Excitations in a High Pressure Turbine stage
KTH.
KTH.
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology.
Show others and affiliations
2005 (English)Conference paper, Published paper (Refereed)
Abstract [en]

This paper demonstrates and evaluates unique flow measurement results obtained in a high pressure test turbine, in order to analyze the effect of Low Engine Order (LEO) excitations. A stator was modified to induce LEO flow variations by either imposing a throat width variation or a blockage of the trailing edge cooling flow from some of the vanes. Laser Two Focus (L2F) and pressure probe measurements were performed at subsonic and transonic flow conditions, without and with the rotor installed and operated. Time resolved velocity data was obtained in front and inside of rotor passages covering the Low Engine Order variation period. The presented results evaluation focuses only on L2F measurements and show that the LEO variation of flow velocity and turbulence intensity is most visible in the gap between stator and rotor and at the first measurement location inside the rotor passage. The overall trend is that stator exit flow Mach numbers are higher behind the passages with smaller pitch and vice versa.

Place, publisher, year, edition, pages
2005.
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-78410Scopus ID: 2-s2.0-84925400558OAI: oai:DiVA.org:kth-78410DiVA: diva2:492443
Conference
6th Conference on Turbomachinery: Fluid Dynamics and Thermodynamics, ETC 2005, Lille, France, 7-11 March 2005
Note

QC 20150601

Available from: 2012-02-08 Created: 2012-02-08 Last updated: 2015-06-01Bibliographically approved

Open Access in DiVA

No full text

Scopus

Search in DiVA

By author/editor
Kessar, AlexandrosJöcker, MarkusFransson, Torsten
By organisation
KTHHeat and Power Technology
Energy Engineering

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 50 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf