Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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Propagation Characteristics of Compression Waves Reflected from the Open End of a Duct

  • Kim, Heuy-Dong (School of Mechanical Engineering, Andong National University) ;
  • Lee, Dong-Hoon (Department of Mechanical Engineering, Seoul National University of Technology) ;
  • H. Kashimura (Department of Control and Information Systems Engineering Kitakyushu National College of Technology) ;
  • T. Setoguchi (Department of Mechanical System Engineering, Saga University)
  • Published : 2003.05.01
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Abstract

The present study addresses the distortion of the compression wave reflected from an open end of a shock tube. An experiment is carried out using the simple shock tube with an open end Computational work is also performed to represent the experimented flows. The second-order Total Variation Diminishing scheme is employed to numerically solve the unsteady, axisy-mmetric, inviscid, compressible governing equations. Both the experimented and predicted results are in good agreement. The generation and development mechanisms of the compression wave, which Is reflected from the open end of the shock tube, are obtained in detail from the present computations. The effect of size of the baffle plate at the open-end that causes the reflection of the incident expansion wave is found negligible. A good correlation is obtained for transition of the reflected compression wave to a shock wave inside the tube. The present data show that for a given wave length of the incident expansion wave the transition of the reflected compression wave to a shock wave can be predicted with good accuracy.

Keywords

References

  1. Emanuel, G., 1986, 'Gasdynamics, Theory and Applications,' AIAA Inc., pp. 184-186
  2. Kentfield, J. A. C., 1993, Nonsteady, One-Dimensional, Internal, Compressible Flows (Theory and Applications), Chapter 7, Oxford University Press
  3. Kim, H. D., 1996, 'Numerical Study on Attenuation and Distortion of Compression Waves Propagating into a Straight Tube,' KSME Journal, Vol. 20, No.7, pp. 2315-2325
  4. Kim, H. D. and Setoguchi, T., 1999, 'Study of the Discharge of Weak Shocks from an Open End of a Duct,' Journal of Sound and Vibration, Vol. 226, No.5, pp.1011-1028 https://doi.org/10.1006/jsvi.1999.2376
  5. Kim, H. D., Setoguchi, T. and Kashimura, H., 2001 (a), 'Augmentation of the Magnitude of the Impulsive Wave Discharging from an Open End of a Duct,' IMechE, Vol. 215, Part C, pp. 191-199
  6. Kim, H. D., Setoguchi, T. and Kashimura, H., 2001 (b), 'Study of the Impingement of Impulse Wave upon a Flat Plate,' Journal of Sound and Vibration, (in press)
  7. Matsuo, K. and Aoki, T., 1992, 'Wave Problems in High-Speed Railway Tunnels,' Shock Waves, Vol. 1, pp. 95-102
  8. Matsuo, K. and Aoki, K., 1996, 'Numerical Study of Attenuation and Distortion of a Compression Wave Propagating in a High-Speed Railway Tunnel,' Computers in Railways V, Vol. 2, Railway Technology and Environmental, pp. 23-32
  9. Ogawa, T., 1997, 'Numerical Investigation of Three-Dimensional Compressible Flows Induced by a Train Moving into a Tunnel,' Computers and Fluids, Vol. 26, No.6, pp. 565-585 https://doi.org/10.1016/S0045-7930(97)00008-X
  10. Ozawa, S., 1994, 'Distortion of Compression Wave During Propagation Along Shinkansen Tunnel,' proc. 8th Int. Conf. on Aerodynamics and Ventilation of Vehicles, pp. 221-226
  11. Raghunathan, S. and Kim, H. D., 1998, 'Impulse Noise and Its Control,' Progress in Aerospace Sciences, Vol. 34, No.1, pp. 1-44 https://doi.org/10.1016/S0376-0421(98)00013-X
  12. Sasoh, A. and Takayama, K., 1993, 'A Numerical and Experimental Study of Sonic Booms Generated in High-Speed Train Tunnels,' Shock Waves @ Marseille III, pp. 353 - 358
  13. Yee, H, C., 1987, 'Upwind and Symmetric Shock-Capturing Schemes,' NASA Tech. Memo. 89464