Shock stand-off distance of a solid sphere decelerating in transonic velocity range

T. Saito, K. Hatanaka, H. Yamashita, T. Ogawa, S. Obayashi, K. Takayama

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The shock stand-off distance of a spherical model flying with transonic speeds is determined through numerical simulations. The model decelerates due to drag forces caused by the pressure and viscous shear stress at the model surface. Two-dimensional axisymmetric numerical codes with numerical grids fixed to the flying spherical model are used in the simulations. Numerically determined shock stand-off distances are compared with experimental data obtained in a previous study as well as with those obtained in our ballistic-range experiments. The numerical results and the experimental data are found to be in good agreement. In addition, the time-dependent shock stand-off distance of a decelerating model is investigated.

Original languageEnglish
Pages (from-to)483-489
Number of pages7
JournalShock Waves
Volume21
Issue number5
DOIs
Publication statusPublished - 2011 Sep 1

Keywords

  • Ballistic range
  • CFD
  • Detached shock wave
  • Shock stand-off distance

ASJC Scopus subject areas

  • Mechanical Engineering
  • Physics and Astronomy(all)

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