Abstract
Two-dimensional physical and numerical models for predicting the characteristics of the flowfield during an unsteady interaction between a planar shock wave moving through air and a deformable saturated porous material were developed using the representative-elementary-volume approach. The numerical model is based on a two-phase arbitrary Lagrangian Eulerian finite difference scheme to solve the flowfield governing equations. The multidimensional effects of the head-on collision were investigated. The physical model is validated by comparing the numerical predictions qualitatively and quantitatively to one- and two-dimensional shock-foam interaction experimental results. Good agreement was obtained both in one- and two-dimensional cases. It was found that wall friction results in shear bands (i.e., localized high vorticity), which affects the flowfield characteristics. Therefore, the common one-dimensional models are not valid in the vicinity of the shock tube sidewalls.
Original language | English |
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Pages (from-to) | 1776-1783 |
Number of pages | 8 |
Journal | AIAA Journal |
Volume | 43 |
Issue number | 8 |
DOIs | |
State | Published - 1 Jan 2005 |
ASJC Scopus subject areas
- Aerospace Engineering