Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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TWO-DIMENSIONAL COMPUTATIONAL AEROACOUSTICS SIMULATION OF SOUND GENERATED BY FLOW AROUND A CIRCULAR CYLINDER

CAA를 이용한 2D 원형 실린더 공력 소음 해석

  • Park, I.C. (Dept. of Aerospace Engineering, Graduate School, Chungnam Nat'l Univ.) ;
  • Go, Y.J. (Dept. of Aerospace Engineering, Graduate School, Chungnam Nat'l Univ.) ;
  • Choi, J.S. (Dept. of Aerospace Engineering, Chungnam Nat'l Univ.) ;
  • Kim, B.S. (Dept. of Aerospace Engineering, Chungnam Nat'l Univ.)
  • 박인철 (충남대학교 대학원 항공우주공학과) ;
  • 고영주 (충남대학교 대학원 항공우주공학과) ;
  • 최종수 (충남대학교 항공우주공학과) ;
  • 김병수 (충남대학교 항공우주공학과)
  • Received : 2012.02.11
  • Accepted : 2013.03.16
  • Published : 2013.03.31
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Abstract

Researches in the area of aeroacoustics have been conducted by two methods. In the first method theoretical formula or experimentation are utilized, and in the second method flow field analysis and acoustic analogy are utilized. In contrast to the first method, the second method does not need new experiments for every individual change of flow configurations and conditions, and it can predict their effects by the flow field analysis, which makes the second method preferred than the first one. In this paper numerical analysis to predict noise generated by a turbulent flow about a two dimensional circular cylinder by use of CAA (Computational Aeroacoustics) method is conducted and the results are compared to the available experimental data.

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References

  1. 2009, Ansys, Ansys Fluent 12.0, "Theory Guide," Ansys.
  2. 2004, Myong, H.K., "Unsteady 2-D Laminar Flow Simulation past a Circular Cylinder," Journal of Computational Fluids Engineering, Vol.9, No.4, pp.41-47.
  3. 2004, Myong, H.K., "Flow Simulation past a Circular Cylinder by 2-D URANS," Journal of Computational Fluids Engineering, Vol.9, No.4, pp.48-54.
  4. 2010, Kim, W., Hur, N. and Jeon, W.H., "Numerical Analysis of Unsteady Flow Field and Aeroacoustic Noise of an Axial Flow Fan," Journal of Computational Fluids Engineering, Vol.15, No.4, pp.60-66.
  5. 2012, Kim, J.S., Kim, H.S. and Hyun, K.T., "Development of Uneven Fan by Aero-Acoustics Analysis & Optimization method," Journal of Computational Fluids Engineering, Vol.17, No.1, pp.16-22.
  6. 2009, Reinaldo, M., Orselli., Julio, R., Meneghini and Fabio S., "Two and three-dimensional Simulation of Sound Generated by Flow Around a Circular Cylinder," AIAA 2009-3270.
  7. 2004, Kang, K.J., Kim, Y.W., Lee, D.J. and Huh, D.N., "CFD-CAA couple methods for analysis of aeroacoustics," KSAS04-2427, pp.768-773.
  8. 1997, Hong, H.B. and Choi, J.S., "Experimental Study on the Vortex-Shedding Sound from a Circular Cylinder," KSAS, pp.473-480.