Numerical Simulation of Shock/Detonation-Deformable-Particle Interaction with Constrained Interface Reinitialization

ORAL

Abstract

We will develop a computational model built upon our verified and validated in-house SDT code to provide improved description of the multiphase blast wave dynamics where solid particles are considered deformable and can even undergo phase transitions. Our SDT computational framework includes a reactive compressible flow solver with sophisticated material interface tracking capability and realistic equation of state (EOS) such as Mie-Gruneisen EOS for multiphase flow modeling. The behavior of diffuse interface models by Shukla {\it et al.} (2010) and Tiwari {\it et al.} (2013) at different shock impedance ratio will be first examined and characterized. The recent constrained interface reinitialization by Shukla (2014) will then be developed to examine if conservation property can be improved.

*This work was supported in part by the U.S. Department of Energy and by the Defense Threat Reduction Agency

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Authors

  • Ju Zhang

    • Florida Institute of Technology

  • Thomas Jackson

    • University of Florida

  • Sivaramakrishnan Balachandar

    • University of Florida
    • Department of Mechanical and Aerospace Engineering, University of Florida