Simulation of detonation wave interaction using an ignition and growth model

Clutter, J. Keith; Belk, Davy M.

doi:10.1007/s00193-002-0153-2

Cited by 22 publications

(20 citation statements)

References 5 publications

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“…The simulation results for the particle pressure and particle velocity in the detonating explosive, plotted in Fig. 5, show good agreement with published experimental values [10,11] for the von Neumann spike pressure (25.9 GPa) and particle velocity (2,310 m/s) in detonating TNT. …”

Section: Example Simulationssupporting

confidence: 83%

“…In this case, the velocity field in the vicinity of the wall is initialized to 5.6 km/s [10]. The simulation assumes JWL equations of state for the solid reactant and 080006-3 gas product, and an 'ignition and growth' model for the explosive (both are taken from the published literature [11]). The simulation results for the particle pressure and particle velocity in the detonating explosive, plotted in Fig.…”

Section: Example Simulationsmentioning

confidence: 99%

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Nonholonomic Hamiltonian method for meso-macroscale simulations of reacting shocks

Lee¹,

Fahrenthold²

2017

AIP Conference Proceedings

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Abstract. The seamless integration of macroscale, mesoscale, and molecular scale models of reacting shock physics has been hindered by dramatic differences in the model formulation techniques normally used at different scales. In recent research the authors have developed the first unified discrete Hamiltonian approach to multiscale simulation of reacting shock physics. Unlike previous work, the formulation employs reacting themomechanical Hamiltonian formulations at all scales, including the continuum. Unlike previous work, the formulation employs a nonholonomic modeling approach. Example applications of the method include mesoscale simulations of hot spot formation and macroscale simulations of shock to detonation.

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Section: Example Simulationssupporting

confidence: 83%

Section: Example Simulationsmentioning

confidence: 99%

Nonholonomic Hamiltonian method for meso-macroscale simulations of reacting shocks

Lee¹,

Fahrenthold²

2017

AIP Conference Proceedings

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“…The case of an impact sending a shock into the explosive material was the scenario used and is depicted in Figure 107. This is patterned after the flyer plate problem that has been used to test the ignition-growth model in cutter [12]. Here a slug of air is used to impact the explosive since no constitutive models for inerts have been integrated into the current modeling framework.…”

Section: Resultsmentioning

confidence: 99%

“…To simulate these cases, the JWL equation of state was used for the unreacted explosive material and the detonation products with the parameters in Table 1. The first simulation cases used the ignition and growth model by [23] and demonstrated by [12]. The parameters for the reaction are listed in Table 2.…”

Section: Resultsmentioning

confidence: 99%

Kinetics Based Reaction Modeling for Heterogeneous Explosives

Clutter¹

2007

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Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing this collection of information. SPONSORING / MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSOR/MONITOR'S ACRONYM(S)Air Force Research Laboratory AFRL-RW-EG Munitions Directorate AFRL/RWAC SPONSOR/MONITOR'S REPORTEglin AFB, FL 32542-6810 NUMBER(S) AFRL-RW-EG-TR-2007-7130 DISTRIBUTION / AVAILABILITY STATEMENTDISTRIBUTION A: For public release; distribution unlimited. AAC/PA Approval and Clearance # 11-06-07-630, dated 6 November, 2007 SUPPLEMENTARY NOTES ABSTRACTThe mechanical and chemical processes that occur in the explosives found in munitions systems are important to the entire life cycle of the system. Examples of these processes are found in the accidental detonation of weapons while in storage or transport, the premature initiation of a warhead during employment, and the destructive output from the system when functioned as designed. The complete range of possible processes encompasses a wide variety of chemical and mechanical phenomena and depending on the scenario, the dominant phenomenon changes. An essential tool for the design and analysis of these systems is a computational model that can predict a range of scenarios. It is such a tool that is the focus of this proposed effort.

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“…The HE detonation model used is a prescription type model as described in [13], which is the most common class of model used in hydrocodes. In short, a prescription model pre-maps the computational cells that lay within the explosive to determine the time at which the detonation front will arrive at their particular location.…”

Section: Explosive Source Termmentioning

confidence: 99%

Hydrocode simulations of air and water shocks for facility vulnerability assessments

Clutter

2004

Journal of Hazardous Materials

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Simulation of detonation wave interaction using an ignition and growth model

Cited by 22 publications

References 5 publications

Nonholonomic Hamiltonian method for meso-macroscale simulations of reacting shocks

Nonholonomic Hamiltonian method for meso-macroscale simulations of reacting shocks

Kinetics Based Reaction Modeling for Heterogeneous Explosives

Hydrocode simulations of air and water shocks for facility vulnerability assessments

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