0

Hot Streak Clocking Effects in a 1-1/2 Stage Turbine FREE

[+] Author Affiliations
Daniel J. Dorney

Western Michigan University, Kalamazoo, MI

Karen Gundy-Burlet

NASA Ames Research Center, Moffett Field, CA

Paper No. 95-GT-202, pp. V001T01A059; 10 pages
doi:10.1115/95-GT-202
From:
  • ASME 1995 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 1: Turbomachinery
  • Houston, Texas, USA, June 5–8, 1995
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7878-1
  • Copyright © 1995 by ASME

abstract

Experimental data has shown that combustor hot streaks can lead to pressure side “hot spots” on first-stage turbine rotor blades. Previous numerical studies have confirmed that unsteady Navier-Stokes procedures can be used to predict the rotor pressure surface temperature increase associated with these combustor hot streaks, and suggest that second-stage turbine stators can also be subjected to increased surface temperatures. In the current investigation, two-dimensional unsteady Navier-Stokes simulations have been performed to study the effects of combustor hot streak position (or clocking) on the temperature distributions along first-stage rotor and second-stage stator airfoils. The predicted results indicate that if the hot streak is positioned such that it impinges upon the first-stage stator, then the suction surfaces of the rotor and second-stage stator attain higher time-averaged temperatures than the pressure surfaces. If the hot streak is positioned such that it does not impinge upon the first-stage stator, then the pressure surfaces of the downstream blades reach higher time-averaged temperatures than the corresponding suction surfaces.

Copyright © 1995 by ASME
Topics: Turbines
This article is only available in the PDF format.

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In