The effect of an unsteady drag force on the structure of a non-equilibrium region behind a shock wave in a gas-particle mixture

T. Saito, M. Saba, M. Sun, K. Takayama

研究成果: Article査読

22 被引用数 (Scopus)

抄録

For numerical analysis of shock wave propagation in gas-particle mixtures, drag coefficients of a sphere in steady flows are generally used. However, it is shown both experimentally and numerically that a shock loaded solid sphere experiences unsteady drag forces. The paper describes a model of unsteady drag force and its effect on the structure of the non-equilibrium region behind a shock front traveling in a dusty gas. The results are compared with those obtained by using a steady drag coefficient and are discussed. It is demonstrated that the large drag force at the early stage of the interaction between shock-wave induced flow and a solid particle affects the flow structure that is obtained with a steady drag force.

本文言語English
ページ(範囲)255-262
ページ数8
ジャーナルShock Waves
17
4
DOI
出版ステータスPublished - 2007 12 1

ASJC Scopus subject areas

  • 機械工学
  • 物理学および天文学(全般)

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