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2D numerical study of circular synthetic jets in quiescent flows

Published online by Cambridge University Press:  03 February 2016

H. Tang  and
S. Zhong
H. Tang
Affiliation:
School of Mechanical, Aerospace and Civil Engineering, The University of Manchester, UK
S. Zhong
Affiliation:
School of Mechanical, Aerospace and Civil Engineering, The University of Manchester, UK
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Abstract

2D numerical simulations of flows generated by a synthetic jet actuator with a circular orifice were conducted at two different diaphragm displacement settings, one representing a typical laminar case and the other a fully turbulent case. The flow in the cavity was included in the computation in order to provide more accurate predictions. A velocity boundary condition was applied at the neutral position of the diaphragm to account for its temporal deformation. Comparisons were made between the computational results and existing PIV and hot-wire data in terms of the time sequence of the velocity vector field, velocity variations in space and with time. It is found that computational results for the laminar case agree well with the experimental data. Four turbulent models were tested for the fully turbulent case. It was found that the predictions using the RNG κ-ε and Standard k-ε models were reasonably close to the experimental data. This initial study has produced some encouraging evidence for the capacity of FLUENT in simulating the key features of synthetic jets.

Type
Research Article
Information
The Aeronautical Journal , Volume 109 , Issue 1092 , February 2005 , pp. 89 - 97
Copyright
Copyright © Royal Aeronautical Society 2005 

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References

1. Smith, B.L. and Glezer, A.. The formation and evolution of synthetic jets, Physics of Fluids, 1998, 10, (9), pp 2281–2297.Google Scholar
2. Glezer, A. and Amitay, M.. Synthetic jets, Ann Rev Fluid Mech, 2002, 34, pp 503–529.Google Scholar
3. Crook, A., Sadri, A.M. and Wood, N.J., The development and implementation of synthetic jets for control of separated flow, 1999, AIAA Paper 99-3176.Google Scholar
4. Crook, A. and Wood, N.J.. A parametric investigation of a synthetic jet in quiescent conditions, 2000, Ninth International Symposium on Flow Visualization, Edinburgh.Google Scholar
5. Zhong, S., Mullet, F. and Wood, N.J.. Interaction of synthetic jets with a laminar boundary layer, Seventh Triennial Symposium on Flow Control, Measurement and Visualisation, Italy, August 2003.Google Scholar
6. Kral, L.D., Donovan, J.F., Cain, A.B. and Cary, A.W., Numerical simulation of synthetic jet actuators, 1997, AIAA Paper 97-1824.Google Scholar
7. Rizzetta, D.P., Visbal, M.R., and Stanek, M.J.. Numerical investigation of synthetic jet flowfields, AIAA J, 1999, 37, (8), pp 919–927.Google Scholar
8. Lee, C.Y. and Goldstein, D.B.. Two-dimensional synthetic jet simulation, AIAA J, 2002, 40, (3), pp 510–516.Google Scholar
9. Mallinson, S.G., Reizes, J.A., and Hong, G.. An experimental and numerical study of synthetic jet flow, Aeronaut J, January 2001, 105, (1043), pp 41–49.Google Scholar
10. Mallinson, S.G., Kwok, C.Y. and Reizes, J.A.. Numerical simulation of micro-fabricated zero mass-flux jet actuators, Sensor and Actuators A, 2003, 105, pp 229–236.Google Scholar
11. Timoshenko, and Woinowsky-Krieger, . Theory of Plates and Shells, 1959, Second Edition, McGraw-Hill Book Company.Google Scholar