Skip to main content
Article
Evaluation of alternatives for two-dimensional linear cascade facilities
Journal of Turbomachinery
  • Paul M. Kodzwa, Jr., Stanford University
  • Amanda Vicharelli, Stanford University
  • Gorazd Medic, Stanford University
  • Christopher J. Elkins, Stanford University
  • John K. Eaton, Stanford University
  • Gregory M. Laskowski, General Electric Global Research Center
  • Paul A. Durbin, Iowa State University
Document Type
Article
Publication Version
Published Version
Publication Date
7-1-2009
DOI
10.1115/1.2985073
Abstract

This paper presents two low-cost alternatives for turbine blade surface heat transfer and fluid dynamics measurements. These models embody careful compromises between typical academic and full-scale turbomachinery experiments and represent a comprehensive strategy to develop experiments that can directly test shortcomings in current turbomachinery simulation tools. A full contextual history of the wide range of approaches to simulate turbine flow conditions is presented, along with a discussion of their deficiencies. Both models are simplifications of a linear cascade: the current standard for simulating two-dimensional turbine blade geometries. A single passage model is presented as a curved duct consisting of two half-blade geometries, carefully designed inlet and exit walls and inlet suction. This facility was determined to be best suited for heat transfer measurements where minimal surface conduction losses are necessary to allow accurate numerical model replication. A double passage model is defined as a single blade with two precisely designed outer walls, which is most appropriate for flow measurements. The design procedures necessary to achieve a desired flow condition are discussed.

Comments

This article is from Journal of Turbomachinery, 131 (2009): 031001, doi: 10.1115/1.2985073. Posted with permission.

Copyright Owner
ASME
Language
en
Date Available
2015-08-26
File Format
application/pdf
Citation Information
Paul M. Kodzwa, Amanda Vicharelli, Gorazd Medic, Christopher J. Elkins, et al.. "Evaluation of alternatives for two-dimensional linear cascade facilities" Journal of Turbomachinery Vol. 131 Iss. 3 (2009) p. article no. 031001
Available at: http://works.bepress.com/paul_durbin/13/