대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제26권9호
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  • Pages.1319-1324
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  • 2002
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  • 1226-4881(pISSN)
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  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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와동에 입사하는 충격파의 반사 및 투과 (II) -이론적 모델-

Shock Reflection and Penetration Impinging into a Vortex(II) - Theoretical Model -

  • 발행 : 2002.09.01
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초록

A theoretical model on shock-vortex interaction is investigated using a numerical technique to solve Navier-Stokes equations. The shock-vortex interaction generated by this model based on the classical Rankin vortex is precisely investigated for a benchmark problem: Dosanjh and Weeks experiment. In terms of shock dynamics, the interaction is categorized to three stages: shock distortion, shock split, and shock-shock interaction. The quadrupolar structure of the sound source produced by the interaction is far supported with the present model, and the difference between experiment and theoretical model is also discussed in this paper.

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참고문헌

  1. Chang S. M., Chang K. S., 2002, 'Shock Reflection and Penetration Impinging into a Vortex(I)-Experimental Model,' Transactions of KSME(B), Vol. 26, accepted https://doi.org/10.3795/KSME-B.2002.26.9.1311
  2. Weeks T. M. and Dosanjh D. S., 1967, 'Cylindrical Sound Wave Generated by Shock-Vortex Interaction,' AIAA Journal, Vol. 5, pp. 660-669 https://doi.org/10.2514/3.4045
  3. Ribner H. S., 1985, 'Cylindrical Sound Generated by Shock-Vortex Interaction,' AIAA Journal, Vol. 23, pp. 1708-1715 https://doi.org/10.2514/3.9155
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  5. Ellzey J. L., Henneke M. R., Picone J. M and Oran E. S., 1995, 'The Interaction of a Shock with a Vortex: Shock Distortion and the Production of Acoustic Waves,' Physics of Fluids, Vol. 7, pp. 171-184 https://doi.org/10.1063/1.868738
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  7. Lee, S. and Bershader D., 1994, 'The Structure of Compressible Starting Vortices' Experiments in Fluids, Vol. 16, pp. 248-254 https://doi.org/10.1007/BF00206544
  8. Chang S. M. and Chang K. S., 2000, 'On the Shock-Vortex Interaction on Schardin's Problem,' Shock Waves, Vol. 10, pp. 333-343 https://doi.org/10.1007/s001930000061
  9. Chang S. M., Lee, S. and Chang K. S., 2001, 'Morphological Transformation of Shock Waves Behind a Flat Plate,' KSME International Journal, Vol. 15, pp. 665-670
  10. Chang S. M. and Chang K. S., 1999, 'Weak Shock Waves Reflected from a Blunt Body,' Transactions of KSME (B), Vol. 23, pp. 901-10
  11. Chang S. M. and Chang K. S., 2001, 'Vortex Ring, Shock-Vortex Interaction, and Morphological Transformation Behind a Finite Cone,' KSME International Journal, Vol. 15, pp. 1599-1604
  12. Chang S. M., 2000, 'Unsteady Shock Wave-Vortex Interactions in the Compressible Shear Layer,' Ph.D. Thesis, KAIST