Letter: Modeling reactive shock waves in heterogeneous solids at the continuum level with stochastic differential equations

Kittell, D. E.; Yarrington, C. D.; Lechman, J. B.; Baer, M. R.

doi:10.1063/1.5031775

Letter: Modeling reactive shock waves in heterogeneous solids at the continuum level with stochastic differential equations

Journal Article · Wed May 09 00:00:00 EDT 2018 · Physics of Fluids

DOI:https://doi.org/10.1063/1.5031775· OSTI ID:1469625

^[1]; Yarrington, C. D. ^[1]; Lechman, J. B. ^[1]; Baer, M. R. ^[1]

Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

In this paper, a new paradigm is introduced for modeling reactive shock waves in heterogeneous solids at the continuum level. Inspired by the probability density function methods from turbulent reactive flows, it is hypothesized that the unreacted material microstructures lead to a distribution of heat release rates from chemical reaction. Fluctuations in heat release, rather than velocity, are coupled to the reactive Euler equations which are then solved via the Riemann problem. Finally, a numerically efficient, one-dimensional hydrocode is used to demonstrate this new approach, and simulation results of a representative impact calculation (inert flyer into explosive target) are discussed.

View Accepted Manuscript (DOE)

Research Organization:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA); SNL Laboratory Directed Research and Development (LDRD) Program

Grant/Contract Number:: NA0003525

OSTI ID:: 1469625

Alternate ID(s):: OSTI ID: 1436551

Report Number(s):: SAND--2018-3215J; 661797

Journal Information:: Physics of Fluids, Journal Name: Physics of Fluids Journal Issue: 5 Vol. 30; ISSN 1070-6631

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Letter: Modeling reactive shock waves in heterogeneous solids at the continuum level with stochastic differential equations

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References (19)

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