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THE STUDY OF AERO-ACOUSTICS CHARACTERISTICS BY THE BOUNDARY CONDITIONS OF HIGH ORDER SCHEME  

Lee, S.S. (한국항공우주산업(주))
Kim, J.S. (조선대학교 항공우주공학과)
Publication Information
Journal of computational fluids engineering / v.14, no.3, 2009 , pp. 25-32 More about this Journal
Abstract
The present paper focuses on the analysis of aero-acoustics characteristic by appling different four boundary conditions. The high-order and high-resolution numerical schemes are used for discrete accurate computation of compressible flow. The four boundary conditions include extrapolation, characteristic boundary condition, zonal characteristic boundary condition. These boundary conditions are applied to the computation of two dimensional circular cylinder flows with Mach number of 0.3 and Reynolds number of 400. The computation results are validated against measurement data and other computation results for the Strouhal frequency of vortex shedding, the mean drag coefficient and root-mean-square lift for the unsteady periodic flow regime. The characteristics of secondary frequency is predicted by three kinds of boundary conditions.
Keywords
Aero Acoustics; Vortex shedding; Strouhal Number; Circular cylinder; Boundary condition;
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1 1989, Karniadakis, G.E. and Triantafyllou, G.S., "Frequency selection and asymptotic states in laminar wakes," J. Fluid Mech., pp.199,441-469   DOI   ScienceOn
2 1990, Abarbanel, S.S., "Secondary frequencies in the wake of a circular cylinder with vortex shedding," ICASE report, No.90-16
3 2006, Sandberg, R.D., Jones, L.E. and Sandham, N.D., "A Zonal characteristic boundary condition for numerical simulations of aerodynamic sound," ECCOMAS CFD
4 1996, Kim, J.W. and Lee, D.J., "Optimizd Compact Finite Difference Schemes with maximum Resolution," AIAA Journal, Vol.34, No.5, pp.887-893   DOI
5 1986, Blake, W.K., "Dipole sound from Cylinders," Mechanics of Flow induced Sound and Vibration, 1st ed., Academic Press, New York, Vol.1, pp.219-287
6 1997, Zdravkovich, M., "Flow Around Circular Cylinders," Oxford Science Publication, Vol.1
7 1987, Townsend, J.C., Rudy, D.H. and Sirovich, L., "Computation and analysis of a cylinder wake flow," In Forum on Unsteady Flow Seperation., ASME, pp.165-174
8 1987, Vanatta, C.W. and GHARIB, M., "Ordered and chaotic vortex streets behind circular cylinders at low Reynolds numbers," J. Fluid Mech, p.174, pp.113-133   DOI   ScienceOn
9 2000, Kim, J.W. and Lee, D.J., "Generalized characteristic boundary conditions for computational Aeroacoustics," AIAA Journal, Vol.38, No.11, pp.2040-2049   DOI   ScienceOn
10 1999, Kim, J.W. and Lee, D.J., "Adaptive Nonlinear Artificial Dissipation Model for Computational Aeroacoustics," 3rd CAA Workshop on Benchmark Problems, USA, November
11 2006, Bodony, D.J., "Analysis of Sponge Zones for Computational Fluid Mechanics," Journal of Computational Physics, Vol.212, No.2, pp.681-702   DOI   ScienceOn
12 1972, Jordan, S.K. and Fromm, J.E., "Oscillatory Drag, Lift, and torque on a Circular Cylinder in a Uniform Flow," Physics of Fluids, Vol.15, No.3, pp.371-376   DOI
13 1989, Sreenivasan, K.R., "Whither turbulence? Remarks on the 'dynamical systems approach' to the turbulence problem," In turbulence at Cross Roads
14 1985, SREENIVASAN, K.R., "Transition and turbulence in fluid flows and low-dimensional chaos," In Frontiers in Fluid Mechanics, pp.41-67
15 1996, Williamson, C.H.K., "Three-dimensional wake transition behind a cylinder," J. Fluid mech, pp.328-345   DOI   ScienceOn