Study of Unsteady Interactions between Gases and Solid Particles
Abstract
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 30, 2007
- Accession Number
- ADA484229
Entities
People
- K. Takayama
- M. Saba
- Min Sun
- Tsutomu Saito
Organizations
- Muroran Institute of Technology