A new stall-onset criterion for low speed dynamic-stall

Sheng, W., Galbraith, R.A.M. and Coton, F.N. (2006) A new stall-onset criterion for low speed dynamic-stall. Journal of Solar Energy Engineering, 128(4), pp. 461-471. (doi: 10.1115/1.2346703)

Abstract

The Beddoes/Leishman dynamic-stall model has become one of the most popular for the provision of unsteady aerofoil data embedded in much larger codes. The underlying modeling philosophy was that it should be based on the best understanding, or description, of the associated physical phenomena. Even though the model was guided by the flow physics, it requires significant empirical inputs in the form of measured coefficients and constants. Beddoes provided these for a Mach number range of 0.3–0.8. This paper considers one such input for a Mach number of 0.12, where, from the Glasgow data, it is shown that the current stall-onset criterion, and subsequent adjustments, yield problematic results. A new stall criterion is proposed and developed in the best traditions of the model. It is shown to be very capable of reconstructing the Glasgow's data for stall onset both the ramp-up and oscillatory tests.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Galbraith, Professor Roderick and Sheng, Mr Wanan and Coton, Professor Frank
• Authors: Sheng, W., Galbraith, R.A.M., and Coton, F.N.
• Subjects: T Technology > TL Motor vehicles. Aeronautics. Astronautics
• College/School: College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity
• Journal Name: Journal of Solar Energy Engineering
• Publisher: American Society of Mechanical Engineers
• ISSN: 0199-6231
• ISSN (Online): 1528-8986
• Published Online: 21 November 2005
• Copyright Holders: Copyright © 2006 American Society of Mechanical Engineers
• First Published: First published in Journal of Solar Energy Engineering 128(4):461-471
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher

Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
31867	1	Modelling of unsteady flows on wind turbines	Roderick Galbraith	Engineering & Physical Sciences Research Council (EPSRC)	GR/S42446/01	Aerospace Sciences