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)

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Publisher's URL: http://dx.doi.org/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 Coton, Professor Frank
Authors: Sheng, W., Galbraith, R. A. M., and Coton, F. N.
College/School:College of Science and Engineering > School of Engineering > Aerospace Sciences
Journal Name:Journal of Solar Energy Engineering
Publisher:American Society of Mechanical Engineers
ISSN:0199-6231

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
318671Modelling of unsteady flows on wind turbinesRoderick GalbraithEngineering & Physical Sciences Research Council (EPSRC)GR/S42446/01ENG - AEROSPACE SCIENCES