Effects of the scalar parameters in the Suzen‐Huang model on plasma actuator characteristics

Ibrahim, I. H. B. and Skote, M. (2013) Effects of the scalar parameters in the Suzen‐Huang model on plasma actuator characteristics. International Journal of Numerical Methods for Heat and Fluid Flow, 23(6), pp. 1076-1103. (doi:10.1108/HFF-05-2011-0108)

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Abstract

Purpose – For the past decade, plasma actuators have been identified as a subset in the realm of active flow control devices. As research into plasma actuators continues to mature, computational modelling is needed to complement the investigation of the actuators. This paper seeks to address these issues. Design/methodology/approach – In this study, the Suzen‐Huang model is chosen because of its ability to simulate both the charge density and Lorentz body force. Its advantages and limitations have been identified with a parametric study of two constants used in the modelling: the Debye length (λD) and the maximum charge density value (ρc* ). By varying the two scalars, the effects of charge density, body force and induced velocity are examined. Findings – The results show that the non‐dimensionalised body force (Fb*) is nonlinearly dependent on Debye length. However, a linear variation of Fb* is observed with increasing values of maximum charge density. The optimized form of the Suzen‐Huang model shows better agreement in the horizontal velocity profile but still points to inaccuracy when compared to vertical velocity profile. Originality/value – The results indicate that the body force still has to be modelled more extensively above the encapsulated electrode, so that the horizontal and vertical components of induced velocities are accurately obtained.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Ibrahim, Dr Imran
Authors: Ibrahim, I. H. B., and Skote, M.
College/School:College of Science and Engineering > School of Engineering > Aerospace Sciences
Journal Name:International Journal of Numerical Methods for Heat and Fluid Flow
Publisher:Emerald
ISSN:0961-5539
ISSN (Online):1758-6585

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