Advertisement

Acta Mechanica Sinica

, Volume 7, Issue 4, pp 295–299 | Cite as

Unsteady interaction of shock wave diffracting around a circular cylinder in air

  • Huang Wensheng
  • O. Onodera
  • K. Takayama
Article

Abstract

The reflection and diffraction of a planar shock wave around a circular cylinder are a typical problem of the complex nonlinear shock wave phenomena in literature. It has long been studied experimentally, analytically as well as numerically. Takayama in 1987 obtained clear experimental pictures of isopycnics in shock tube under the condition that the impinging shock wave propagates as far as 3 diameters away from the cylinder. To know more completely the whole unsteady process, it is desirable to get experimental results in a region which is more than 10 diameters away from the cylinder. This is what has been done in this paper by using the pulsed laser holographic interferometry for several shock Mach numbers of the impinging shock. Results for several moments are shown, giving more knowledge about the whole unsteady flow field. This is useful for a reliable and complete understanding of the changing force acting on the cylinder, and provides interesting data to check the performance of many recently developed high resolution numerical methods for unsteady shock wave calculation.

Key Words

shock wave diffraction large flow field around a cylinder pulsed laser holographic interferometry isopycnics complex interaction of curved shocks 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    Smith, W. R., OSRD (1945), Rep. No. 6271.Google Scholar
  2. [2]
    White, D. R., Proc. 2nd Midwest Conf. on Fluid Mech. (1952), 21 No. 3, 252–263.Google Scholar
  3. [3]
    Bryson, A. E. and Gross, R. W. F.,J. Fluid Mech., 10 (1961).Google Scholar
  4. [4]
    Heilig, W. H., Phys. Fluid. Suppl. 1, 12, pt. 2 (1969), 154–157.Google Scholar
  5. [5]
    Iton, S. and Itaya, M., Proc. 12th Int. Symp. on Shock Tubes and Waves (1980).Google Scholar
  6. [6]
    Iton, S., Okazaki, N. and Itaya, M.,J. Fluid Mech., 108 (1981), 383–400.CrossRefGoogle Scholar
  7. [7]
    Ben-Dor, G., Takayama, K. and Kawauchi, T.,J. Fluid Mech., 100 (1980), 147–160.CrossRefGoogle Scholar
  8. [8]
    Iton, K. and Takayama, K.,Theoretical and Applied Mechanics., 35 (1987), 27–36.Google Scholar
  9. [9]
    Huang Wensheng, Liu Ziqiang, Hu Yongsheng.,Acta Mechanica Sinica,19, Sup. July (1987), 73–78 (in Chinese).Google Scholar

Copyright information

© Chinese Society of Theoretical and Applied Mechanics 1991

Authors and Affiliations

  • Huang Wensheng
    • 1
  • O. Onodera
    • 2
  • K. Takayama
    • 2
  1. 1.Peking UniversityBeÿingChina
  2. 2.Tohoku UniversityJapan

Personalised recommendations