Affiliation:
1. Nanjing University of Aeronautics and Astronautics
Abstract
In the present study CFD simulation with delayed detached eddy simulation (DDES) are performed to investigate an open cavity at Mach 0.85. Two cavity configurations, clean cavity and cavity with a leading-edge saw tooth spoiler, are modeled. The results obtained from clean cavity prediction are compared with experimental sound pressure level (SPL) data from QinetiQ, UK. Furthermore, comparisons are made with the predicted SPL between the two configurations. The main focuses of this investigation are to obtain a further understanding of the cavity aeroacoustics and test the noise suppression effect by a saw tooth spoiler.
Publisher
Trans Tech Publications, Ltd.
Reference7 articles.
1. Mark H. Morton, Craig D. Hampson, Ric A. Alexander: Final Vibration and Acoustic Loads Development for Certification of the F-22 Advanced Tactical Fighter. In: 49th AIAA / ASME / ASCE / AHS / ASC Structures, Structural Dynamics, and Materials Conference, Schaumburg, IL, USA (2008).
2. Smagorinsky. J.: General Circulation Experiments with the Primitive Equations. Monthly Weather Review, 91 (1963).
3. G.W. Foster, J.A. Ross, and R.M. Ashworth: Weapon Bay Aerodynamics-Wind-Tunnel Trials and CFD Modelling by QinetiQ UK. In: RTO/AVT Symposium on Flow-Induced Unsteady Loads and the Impact on Military Applications, Budapest, Hungary (2005).
4. Henshaw, M.J. de C.: M219 cavity case. In: Verification and Validation Data for Computational Unsteady Aerodynamics, Tech. Rep. RTO-TR-26, AC/323 (AVT) TP/19, QinetiQ, UK (2000).
5. Shoeb Ahmed Syed, Klaus A. Hoffmann: Numerical Investigation of 3-D Open Cavity with and Without Cover Plates. In: 47th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, Orlando, Florida, USA (2009).
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