The effect of wake parameters on the transitional boundary layer on turbine blade-Reference-Cited by-同舟云学术

The effect of wake parameters on the transitional boundary layer on turbine blade

Published:2005-01-01 Issue:6 Volume:219 Page:471-480
ISSN:0957-6509
Container-title:Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy
language:en
Short-container-title:Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy

Author:

Zarzycki R¹,Elsner W¹

Affiliation:

1. Institute of Thermal Machinery, Czestochowa University of Technology, Czestochowa, Poland

Abstract

This paper presents an experimental analysis of the interaction between wakes and boundary layers on an aerodynamic blade profile. The main objective of this research was to investigate the simultaneous influence of the freestream conditions and wake parameters on the wake-induced transition process. The investigations were performed for two levels of inlet freestream turbulence Tu = 0.4 and 3 per cent. The wakes were generated by cylindrical bars mounted in the rotating wheel. It was shown that wake parameters and especially the turbulence in the wake and wake width have a great influence on the position and extent of the induced transition. The role of freestream turbulence on the wake structure passing over the blade surface was also emphasized.

Publisher

SAGE Publications

Subject

Mechanical Engineering,Energy Engineering and Power Technology

Link

http://journals.sagepub.com/doi/pdf/10.1243/095765005X28625

Reference8 articles.

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4. Unsteady Boundary Layers on a Flat Plate Disturbed by Periodic Wakes: Part I—Measurement of Wake-Affected Heat Transfer and Wake-Induced Transition Model

5. Turbulenzverhältnisse hinter rotierenden Zylindergittern

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