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Large-Eddy Simulations of Subsonic Impinging Jets

Authors: L. Nguyen, V. Golubev, R. Mankbadi

Abstract:

We consider here the subsonic impinging jet representing the flow field of a vertical take-off aircraft or the initial stage of rocket launching. Implicit Large-Eddy Simulation (ILES) is used to calculate the time-dependent flow field and the radiate sound pressure associated with jet impinging. With proper boundary treatments and high-order numerical scheme, the near field sound pressure is successfully obtained. Results are presented for both a rectangular as well a circular jet.

Keywords: Aeroacoustics, Large-Eddy Simulations, Jets, Fluid Dynamics.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1078961

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References:


[1] Brown, M, & Frendi, A., 2012, "Supersonic Jet Impingement on A Flat Plate," AIAA. 2012-2201, 18th AIAA/CEAS Aeroacoustics Conference, June 2012, Colorado Springs, Co.
[2] Ho, C. and Nosseir, N. S., "Dynamics of an impinging jet, Part 1, The feedback Phenomenon", Journal of Fluid Mechanics, Vol. 105, pp. 119-142, 1981.
[3] Nosseir, N.S. and Ho, C., "Dynamics of an impinging jet, Part 2, the noise generation", Journal of Fluid Mechanics, Vol. 116, pp. 379- 391, 1982.
[4] Tam, C.K.W. and Ahuja, K.K., "Theoretical model of discreet tone generation by impinging jets", Journal of Fluid Mechanics, Vol. 214, pp. 67-87, 1990.
[5] Anderson, D.A., Tannehill, J.C. and Pletcher, R.H., "Computational Fluid Mechanics and Heat Transfer," McGraw -Hill Book Company, 1984.
[6] Visbal, M.R. and Rizzetta, D.P., (2002) "Large Eddy Simulation on Curvilinear Grids Using Compact Differencing and Filtering Schemes," Journal of Fluids Engineering, Vol. 124, pp.836-847
[7] Visbal, M.R., Morgan, P.E. and Rizzetta, D.P., (2003) "An Implicit LES Approach Based on High-Order Compact Differencing and Filtering Schemes," AIAA Paper 2003-4098.
[8] Visbal, M.R. and Gaitonde, D.V., (2002), "On the Use of High Curvilinear Grids Using Compact Differencing and Filtering Schemes," Journal of Fluids Engineering, Vol. 124, pp.836
[7] Visbal, M.R., Morgan, P.E. and Rizzetta, D.P., (2003) "An Implicit LES Approach Based on High-Order Compact Differencing and Filtering Schemes," AIAA Paper 2003-4098.
[8] Visbal, M.R. and Gaitonde, D.V., (2002), "On the Use of High -Order Finite-Difference Schemes on Curvilinear and deforming Meshes,"Journal of Computational Physics, Vol. 181, pp.155-185, 202 .
[9] Lele, S.K., (1992) "Compact Finite Difference Schemes with Spectral-like Resolution," Journal of Computational Physics, 103, pp16-42.