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- Donald W. Schwendeman, Christopher W. Wahle, Ashwana K. Kapila
- J. Comput. Physics
- 2006

This paper considers the Riemann problem and an associated Godunov method for a model of compressible two-phase flow. The model is a reduced form of the wellknown Baer-Nunziato model which describesâ€¦ (More)

- Jeffrey W. Banks, Donald W. Schwendeman, Ashwana K. Kapila, William D. Henshaw
- J. Comput. Physics
- 2007

A numerical method is described for inviscid, compressible, multi-material flow in two space dimensions. The flow is governed by the multi-material Euler equations with a general mixture equation ofâ€¦ (More)

- J. B. Bdzil, Ralph Menikoff, Steven F. Son, Ashwana K. Kapila
- 1998

The two-phase mixture model developed by Baer and Nunziato ~BN! to study the deflagration-to-detonation transition ~DDT! in granular explosives is critically reviewed. The continuum-mixture theoryâ€¦ (More)

A two-phase model of heterogeneous explosives, with a reaction rate that is proportional to the gasphase pressure excess above an ignition threshold, is examined computationally. The numericalâ€¦ (More)

A two-phase model of heterogeneous explosives, due to Baer and Nunziato, is examined computationally by a new numerical approach that is a modification of the standard Godunov scheme. The approachâ€¦ (More)

Emergence of a detonation in a homogeneous, exothermically reacting medium can be deemed to occur in two phases. The first phase processes the medium so as to create conditions ripe for the onset ofâ€¦ (More)

Previous computational studies of diffracting detonations with the ignition-and-growth (IG) model demonstrated that contrary to experimental observations, the computed solution did not exhibit deadâ€¦ (More)

The flow field resulting from the interaction between a planar incident shock in a solid and an embedded ellipsoidal gas cavity is examined computationally. The study is motivated by the need forâ€¦ (More)

A multi-material two-phase hybrid model of heterogeneous explosives, with a reaction rate that is proportional to the gas-phase pressure excess above an ignition threshold, is examinedâ€¦ (More)

~ ~ '1 / Reactive systems involving Arrhenius kinetics often exhibit multiple steady states. A typical response is an S-curve, whose turnaround points correspond to ignition or extinction. This paperâ€¦ (More)