A full-scale hydrodynamic simulation of energetic component system.

*(English)*Zbl 1390.80014Summary: A full scale hydrodynamic simulation that requires an accurate reproduction of shock-induced detonation was conducted for design of an energetic component system. A series of small scale gap tests and detailed hydrodynamic simulations were used to validate the reactive flow model for predicting the shock propagation in a train configuration and to quantify the shock sensitivity of the energetic materials. The energetic component system is composed of four main components, namely a donor unit (HNS+HMX), a bulkhead (STS), an acceptor explosive (RDX), and a propellant (BKNO3) for gas generation. The pressurized gases generated from the burning propellant were purged into a 10 cc release chamber for study of the inherent oscillatory flow induced by the interferences between shock and rarefaction waves. The pressure fluctuations measured from experiment and calculation were investigated to further validate the peculiar peak at specific characteristic frequency (\(\omega_{c} = 8.3\,\mathrm{kHz}\)). In this paper, a step-by-step numerical description of detonation of high explosive components, deflagration of propellant component, and deformation of metal component is given in order to facilitate the proper implementation of the outlined formulation into a shock physics code for a full scale hydrodynamic simulation of the energetic component system.

##### MSC:

80A25 | Combustion |

80M25 | Other numerical methods (thermodynamics) (MSC2010) |

76M25 | Other numerical methods (fluid mechanics) (MSC2010) |

76L05 | Shock waves and blast waves in fluid mechanics |

76Nxx | Compressible fluids and gas dynamics, general |

##### Keywords:

pyrotechnic combustion; explosive train configuration; shock sensitivity; closed chamber test##### Software:

JWL++
Full Text:
DOI

##### References:

[1] | Rider, W. J.; Kothe, D. B., Reconstructing volume trackingâ€ť, J Comput Phys, 141, 112-152, (1998) · Zbl 0933.76069 |

[2] | Benson, D. J., Volume of fluid interface reconstruction methods for multi-material problems, Appl Mech Rev, 55, 2, 151-165, (2002) |

[3] | Harman, T.; Guilkey, J. E.; Kashiwa, B.; Schmidt, J., An eulerian-Lagrangian approach for large deformation fluid structure interaction problems, part 2: multi-physics simulations within a modern computational framework, Trans Built Env, 71, 1-10, (2004) |

[4] | Kashiwa, B.; Lewis, M.; Wilson, T., Fluid-structure interaction modeling, (LA-13111-PR, Los Alamos national laboratory, (1996), LANL) |

[5] | Guilkey, J. E.; Harman, T. B.; Banergee, B., An eulerian-Lagrangian approach for simulating explosions of energetic devices, Comput Struct, 85, 660-674, (2007) |

[6] | Kim, K.; Yoh, J. J., A particle level-set based Eulerian method for multi-material detonation simulation of high explosive and metal confinements, (Proceedings of the combustion institute, 34, (2013)), 2025-2033 |

[7] | Kapahi, A.; Mousel, J.; Sambasivan, S.; Udaykumar, H. S., Parallel, sharp interface Eulerian approach to high-speed multi-material flows, Comput Fluids, 83, 144-156, (2013) · Zbl 1290.76134 |

[8] | Kim, B.; Park, J.; Lee, K.; Yoh, J. J., A reactive flow model for heavily aluminized cyclotrimethylene-trinitramine, J Appl Phys, 116, (2014) |

[9] | Kim, K.; Yoh, J. J., Shock compression of condensed matter using multimaterial reactive ghost fluid method, J Math Phys, 49, 1-16, (2008), 043511 · Zbl 1152.81511 |

[10] | Enright, D.; Fedkiw, R.; Ferziger, J.; Mitchell, I., A hybrid particle level set method for improved interface capturing, J Comput Phys, 183, 1, 83-116, (2002) · Zbl 1021.76044 |

[11] | Kim, K.; Gwak, M.; Yoh, J. J., An enhanced particle reseeding algorithm for the hybrid particle level set method in compressible flows, J Sci Comput, 65, 431-453, (2015) · Zbl 1330.76114 |

[12] | Eright, D.; Fedkiw, R.; Ferziger, J.; Mitchell, I., A hybrid particle level set method for improved interface capturing, J Comput Phys, 83, 32-78, (1989) |

[13] | Yoo, S.; Stewart, D. S., A hybrid level set method for modelling detonation and combustion problems in complex geometries, Combust Theory Model, 9, 219-254, (2005) · Zbl 1083.80004 |

[14] | Hu, X. Y.; Khoo, B. C., An interface interaction method for compressible multifluids, J Comput Phys, 198, 35-64, (2004) · Zbl 1107.76378 |

[15] | Souers, P. C.; Anderson, S.; Mercer, J.; McGuire, E.; Vitello, P., JWL++: a simple reactive flow code package for detonation, Propellants Explos Pyrotech, 25, 2, 54-58, (2000) |

[16] | Fried, L. E.; Howard, W. M.; Souers, P. C., Cheetah 2.0 User’s manual, (UCRL-MA-117541, Lawrence Livermore ratory, (1998), LLNL) |

[17] | Steinberg, D. J., Equation of state and strength properties of selected materials, (UCRL-MA-106439, Lawrence Livermore national laboratory, (1996), LLNL) |

[18] | Johnson, G. R.; Cook, W. H., Fracture characteristics of three metals subjected to various strains, strain rates, temperatures and pressures, Eng Fract Mech, 21, 1, 31-48, (1985) |

[19] | Lee, H. S., Ignition delay investigation in a pyrotechnic cartridge with loosely-packed propellant grains, (45th AIAA/ASME/SAE/ASEE joint propulsion conference & exhibit, (2009), AIAA), 1-11, 5191 |

[20] | Kim, B.; Park, J.; Yoh, J. J., Analysis on shock attenuation in gap test configuration for characterizing energetic materials, J Appl Phys, 119, (2016) |

[21] | Price, D.; Liddiard, T. P., The small scale gap test: calibration and comparison with the large scale gap test, (NOLTR 66-87, Naval ordnance laboratory, (1966), NOL) |

[22] | Souers, P. C.; Vitello, P., Initiation pressure thresholds from three sources, Propellants Explos Pyrotech, 32, 288-295, (2007) |

[23] | Lawrence, E. K.; Austin, R. F.; Alan, B. C.; James, V. S., Fundamentals of acoustics, 149-165, (2009), John Wiley & Sons |

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