Detached eddy simulation of a synthetic jet for flow control

Qin, N and Xia, H (2008) Detached eddy simulation of a synthetic jet for flow control. Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 222 (5). pp. 373-380. ISSN 0959-6518

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Synthetic jets have been proposed for efficient flow control due to their unique zero-net-mass-flux feature and the conceptual simplicity of the system. However, the effectiveness of the control is heavily dependent upon the complicated flow interaction of the jets with the flow stream on which the jet is applied. To understand the flow control mechanism better, a numerical simulation method is investigated in this paper. Using a computational fluid dynamics technique, the detached eddy simulation for an isolated synthetic jet for flow control is presented. A cubic-root filter is introduced with continuous eddy viscosity variation at the switching point between the Reynolds-averaged Navier—Stokes solution region and the large eddy simulation region. The intention is to explore the effects of unstructured grids for such a filtering strategy. A dissipation-controlled Roe scheme is applied and a dynamic grid technique is employed to implement the periodically moving diaphragm. The results obtained are compared with the experimental data and a previous study using structured grids.

Item Type: Article
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Depositing User: Hao Xia
Date Deposited: 06 Feb 2012 20:44
Last Modified: 27 Jun 2012 09:43
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