An experimental study of three-dimensional turbine blades combined with profiled endwalls

Bagshaw, DA; Ingram, GL; Gregory-Smith, DG; Stokes, MR

Abstract

This paper presents a detailed series of measurements on a novel design for reducing secondary flow in a linear cascade. The design of this geometry, which features profiled endwalls and three-dimensional blade shaping was discussed in a companion paper [1]. This paper presents the results of static pressure measurements on the blade surface, pneumatic pressure probe traverses, and surface oil flow visualization in order to build a comprehensive picture of the geometry's performance and function. Although the interactions between blade shaping and profiled endwalls are complex the experimental results show benefits over applying profiled endwalls alone.

Citation

Bagshaw, D., Ingram, G., Gregory-Smith, D., & Stokes, M. (2008). An experimental study of three-dimensional turbine blades combined with profiled endwalls. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 222(1), 103-110. https://doi.org/10.1243/09576509jpe478

• Journal Article Type: Article
• Publication Date: Feb 1, 2008
• Deposit Date: Oct 17, 2011
• Journal: Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy
• Print ISSN: 0957-6509
• Electronic ISSN: 2041-2967
• Publisher: SAGE Publications
• Peer Reviewed: Peer Reviewed
• Volume: 222
• Issue: 1
• Pages: 103-110
• DOI: https://doi.org/10.1243/09576509jpe478
• Keywords: Secondary flow, Profiled endwalls, Turbomachinery, Blade design, Turbines, Nonaxisymmetric.