2020
DOI: 10.1155/2020/8895404
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A Comparison Investigation on Cylinder Test in Different Ambient Media by Experiment and Numerical Simulation

Abstract: When the detonation reaction occurs after the charge in the warhead is ignited, the propagation of the detonation wave and the expansion of the detonation product will interact with the wrapped metallic shell and cause the shell material to accelerate, extremely deform, and eventually rupture, which is a typical strong fluid-structure interaction problem. In this paper, a comparison investigation on a cylinder test in different ambient media was implemented by experiment and numerical simulation, respectively.… Show more

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Cited by 3 publications
(5 citation statements)
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“…Figure 5 shows the variation of the spray cone angle with different factors and levels. It can be seen from Figure 5(a) that the spray angle decreases gradually with the increase of the expansion angle, which is consistent with the reference [25]. This is due to the wall-sticking effect.…”
Section: Spray Cone Anglesupporting
confidence: 87%
See 1 more Smart Citation
“…Figure 5 shows the variation of the spray cone angle with different factors and levels. It can be seen from Figure 5(a) that the spray angle decreases gradually with the increase of the expansion angle, which is consistent with the reference [25]. This is due to the wall-sticking effect.…”
Section: Spray Cone Anglesupporting
confidence: 87%
“…This is due to the wall-sticking effect. There exists an expansion angle in the nozzle outlet that can reduce the spray cone angle [25]. Figure 5(b) shows that as the equal straight section diameter increases, the spray cone angle increases, which is consistent with Qiu et al [18].…”
Section: Spray Cone Anglesupporting
confidence: 86%
“…The MPM adopts the dual description of a Lagrangian particle and an Eulerian grid, combining the advantages of Lagrangian and Eulerian methods [28,29]. It eliminates the numerical difficulties arising from grid distortion and nonlinear convection terms [30][31][32][33][34]. As the Lagrangian particle mass does not change in the calculation process, the mass conservation condition is always satisfied in the MPM.…”
Section: Introductionmentioning
confidence: 99%
“…As such, understanding the distribution of mass as it pertains to cylindrically contained explosions is needed for such broad topics as application safety determination Ogunfuye et al, [1] mass migration in underground/contained channels, [2,3] forensic analysis, [4,5] and analysis of debris fields. [6] Explosions contained in cylindrical enclosures have many applications such as food processing, rocket design, resilient armor, geologic and atmospheric migration, and industrial safety in areas such as grain elevators, oil rigs, and mining. [1,[7][8][9][10][11] Contained explosions can generate many particulates, which can be difficult to track; therefore, a surrogate that survives the explosion and retains placement information is needed to help build that understanding base.…”
Section: Introductionmentioning
confidence: 99%
“…[4,12,13] The dispersive potential of explosives is dependent on many variables, [14] and explosive dispersal can vary from the propagation of the blast wave. [15] Researchers have developed collection methods for dispersed mass, [6,15] but many methods only collect a small portion of material from many meters (typically ranging from 1 to 20) away from the blast. A direct surrogate, which can be added to the charge, is needed to explore the explosive dispersal of material from the charge in a more complete way.…”
Section: Introductionmentioning
confidence: 99%