Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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NUMERICAL SIMULATIONS OF LOW- AND HIGH-FREQUENCY BUZZ AROUND AN AXISYMMETRIC SUPERSONIC INLET

축대칭 초음속 흡입구 주위의 저주파수 및 고주파수 버즈(Buzz)에 대한 수치모사

  • Kwak, E. (Dept. of Aerospace Engineering, Inha Univ.) ;
  • Lee, N. (Dept. of Aerospace Engineering, Inha Univ.) ;
  • Gong, H. (Dept. of Aerospace Engineering, Inha Univ.) ;
  • Lee, S. (Dept. of Aerospace Engineering, Inha Univ.)
  • 곽인근 (인하대학교 대학원 항공우주공학과) ;
  • 이남훈 (인하대학교 대학원 항공우주공학과) ;
  • 공효준 (인하대학교 대학원 항공우주공학과) ;
  • 이승수 (인하대학교 항.조.산 공학부 항공우주공학전공)
  • Received : 2013.03.06
  • Accepted : 2013.04.10
  • Published : 2013.06.30
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Abstract

In this paper, numerical simulations of both low- and high-frequency buzz phenomena at the throttle ratios (T.R.) in Nagashima's experiment are performed. The dominant frequencies of the low-and high-frequency buzz in the experiment are about 109 Hz with T.R.=0.97 and 376 Hz with T.R.=0.55, respectively. An axisymmetric solver with the S-A turbulence model is used for the simulations, and DFT(Discrete Fourier Transform) on pressure histories is conducted for the buzz frequency analysis. In the present simulations, the free-stream Mach number and the Reynolds number based on the inlet diameter are 2 and $10^7$, respectively. Both the low- and high-frequency buzz phenomena are accomplished without the changes in the grid topology. The dominant frequency of the simulation is about 125 Hz with T.R.=0.97, while it is 399 Hz with T.R.=0.55.

Keywords

References

  1. 1947, Oswatitsch, K., "Pressure Recovery for Missiles with Reaction Propulsion at High Supersonic Speeds," NACA TM-1140.
  2. 1951, Ferri, A. and Nucci, L.M., "The Origin of Aerodynamic Instability of Supersonic Inlets at Subcritical Conditions," NACA RM L5030.
  3. 1954, Dailey, C.L., "Supersonic Diffuser Instability," Ph.D Thesis, California Institute of Technology.
  4. 1984, Newsome, R., "Numerical Simulation of Near-Critical and Unsteady, Subcritical Inlet Flow," AIAA J., Vol.22-10, pp.1375-1379. https://doi.org/10.2514/3.48577
  5. 1972, Nagashima, T., Tornio, O. and Tsuyoshi, A., "Experiment of Supersonic Air Intake Buzz," Institute Space and Aeronautical Science, University of Tokyo, Japan, Rept. 481.
  6. 1998, Lu, P.J. and Jain, L.T., "Numerical Investigation of Inlet Buzz Flow," Journal of Propulsion and Power, Vol.14-1, pp.90-100. https://doi.org/10.2514/2.5254
  7. 2008, Trapier, S., Deck, S. and Duveau, P., "Delayed Detached-Eddy Simulation and Analysis of Supersonic Inlet Buzz," AIAA J., Vol.46-1, pp.118-131. https://doi.org/10.2514/1.32187
  8. 2006, Trapier, S., Duveau, P. and Deck, S., "Experimental Study of Supersonic Inlet Buzz," AIAA J., Vol.44-10, pp.2354-2365. https://doi.org/10.2514/1.20451
  9. 2011, Hong, W. and Kim, C., "Numerical Study on Supersonic Inlet Buzz under Various Throttling Conditions and Fluid-Structure Interaction," AIAA Paper 2011-3967, 29th Applied Aerodynamics Conference, Honolulu, Hawaii.
  10. 2011, Kwak, E. and Lee, S., "Convergence Study of Inlet Buzz Frequency with Computational Parameters," AIAA Paper 2011-3362, 29th Applied Aerodynamics Conference, Honolulu, Hawaii.
  11. 1992, Spalart, P.R. and Allmaras, S.R., "A One-Equation Turbulence Model for Aerodynamic Flows," AIAA Paper 92-0439, 30th Aerospace Sciences Meeting and Exhibit, Reno, NV.
  12. 1981, Roe, R.L., "Approximate Riemann Solver, Parameter Vectors and Difference Schemes," Journal of Computational Physics, Vol.43-2, pp.357-372. https://doi.org/10.1016/0021-9991(81)90128-5
  13. 2005, Kim, K.H. and Kim, C., "Accurate, efficient and monotonic numerical methods for multi-dimensional compressible flows, Part II: Multi-dimensional limiting process," Journal of computational Physics, 208, pp.570-615. https://doi.org/10.1016/j.jcp.2005.02.022
  14. 1982, Beam, R.M. and Warming, R.F., "Implicit Numerical Methods for the Compressible Navier-Stokes and Euler Equations," von Karman Institute for Fluid Dynamics Lecture Series.

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