0

Full Content is available to subscribers

Subscribe/Learn More  >

Aerodynamic Optimization of an Impulse Turbine Cascade Including Laminar/Turbulent Transition Prediction

[+] Author Affiliations
Ernesto Benini, Claudio Comis da Ronco, Rita Ponza

University of Padova, Padova, Italy

Paper No. GT2010-22026, pp. 2099-2107; 9 pages
doi:10.1115/GT2010-22026
From:
  • ASME Turbo Expo 2010: Power for Land, Sea, and Air
  • Volume 7: Turbomachinery, Parts A, B, and C
  • Glasgow, UK, June 14–18, 2010
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-4402-1 | eISBN: 978-0-7918-3872-3
  • Copyright © 2010 by ASME

abstract

Aerodynamic optimization of an impulse turbine rotor cascade is described in this paper. The aim of the optimization is to minimize the total pressure losses through the cascade by reshaping the turbine airfoil. For a more realistic calculation of the boundary layer and the associated losses, laminar/turbulent transition is computed by means of the commercial CFD code Fluent. The solver underwent an accurate validation before it is inserted into the optimization loop. A proper optimization procedure is developed which is based on a sequential use of two modules: first, a global search is performed using a genetic algorithm, then a local optimization is carried out by means of a Sequential Quadratic Programming (SQP) algorithm. The benefits of this approach are demonstrated, in that the total pressure coefficient of the cascade can be lowered up to 25%.

Copyright © 2010 by ASME

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