Head-on collision of a planar shock wave with deformable porous foams

G. Malamud, D. Negev, A. Levy

Research output: Contribution to journalArticlepeer-review

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 languageEnglish
Pages (from-to)1776-1783
Number of pages8
JournalAIAA Journal
Volume43
Issue number8
DOIs
StatePublished - 1 Jan 2005

ASJC Scopus subject areas

  • Aerospace Engineering

Fingerprint

Dive into the research topics of 'Head-on collision of a planar shock wave with deformable porous foams'. Together they form a unique fingerprint.

Cite this