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Detached eddy simulation of a synthetic jet for flow control

journal contribution
posted on 2023-06-08, 07:34 authored by N Qin, H Xia
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.

History

Publication status

  • Published

Journal

Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering

ISSN

0959-6518

Publisher

SAGE Publications Ltd.

Issue

5

Volume

222

Page range

373-380

Department affiliated with

  • Engineering and Design Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

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