TNT Equivalency of Unconfined Aerosols of Propylene Oxide

Apparao, A.; Rao, C. Raghavendra

doi:10.14429/dsj.64.6851

Cited by 4 publications

(3 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The dispersion process of fuel was the prerequisite of cloud explosion, and many researchers had conducted plenty of experiments [3][4][5][6][7][8]. G. Liu et al [9] compared the power of solid fuels and liquid-solid fuels.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Numerical simulation of disperse process of fuel‐air explosive based on the computational fluid dynamics

Ruipeng,

Xianzhen,

Wengang

et al. 2023

Propellants Explo Pyrotec

View full text Add to dashboard Cite

The formation process of fuel cloud is easily affected by the material properties of fuel mixture and the structural qualities of manufacture. The spread region of fuel cloud plays an important role in the damage performance of FAE bomb. However, there are not sufficient simulation study on the disperse process, lacking a useful model for calculating the fuel cloud size due to the physical complexity in disperse process. In this work, a FAE bomb was designated at first and an experiment was carried out to measure the fuel cloud diameters. And then a computational model was established to illustrate the formation process of fuel cloud. This computational model consisted of an explosion dynamics model in the near‐field stage and a fluid dynamics model in the far‐field stage. Furthermore, multiphase turbulence flow, discrete phase and species chemical transportation were incorporated in the fluid dynamics model. The results showed that good agreements were yielded by comparison of the simulation results and experimental data for the fuel cloud diameters. The fuel cloud diameter at 220 ms was 9.11 m for simulation and 9.37 m for experiment. Additionally, it was also discussed the influence of particle size distribution on the formation process of fuel cloud. Larger particles were more likely to aggregate at the outside region of fuel cloud due to individual inertial influence. This study can provide an effective computation model for evaluation of the fuel cloud region, which can be worthwhile in understanding the physical mechanism of disperse process.

show abstract

Section: Introductionmentioning

confidence: 99%

“…The dispersion process of fuel was the prerequisite of cloud explosion, and many researchers had conducted plenty of experiments [3–8]. G. Liu et al.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of disperse process of fuel‐air explosive based on the computational fluid dynamics

Ruipeng,

Xianzhen,

Wengang

et al. 2023

Propellants Explo Pyrotec

View full text Add to dashboard Cite

show abstract

“…In the modern military context, warheads equipped with double-event fuel-air explosives (DEFAEs) have great lethality, with the advantages of a large explosive area and high explosive strength [1][2][3][4][5][6]. A DEFAE typically follows two detonation processes to produce an explosive cloud [7][8][9][10][11][12]. The first detonation is used for dispersal of the fuel; the second one is for the timely initiation of the twice-detonating device (TDD) and detonation of the fuel-air mixture, bringing about an explosive cloud and causing shock-wave damage to the target.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Ejection Characteristics for Twice-Detonating Device in Double-Event Fuel-Air Explosive with High Drop Velocity

Sun

Bai

Zhao

et al. 2023

Fire

View full text Add to dashboard Cite

The key to ensure the reliability of the cloud detonation in high-drop-velocity double-event fuel-air explosives (DEFAEs) is to cause the twice-detonating device (TDD) to detonate in the dispersed fuel. Here, an ejection mechanism for a TDD is designed and the ejection process is analyzed through an outfield ejection test. Accordingly, a simulation model for the description of the ejection process is established and verified to be reliable by comparing it with the experimental results. Based on the model, two extended ensamples for design optimization of the ejection mechanism are developed. The factors influencing the ejection characteristics of the TDD are further analyzed, including the ejection charge mass and screw (for baffle fixing) parameter. The research carried out here provides theoretical and experimental support for the optimal design of the ejection mechanism in high-drop-velocity DEFAEs.

show abstract

Numerical investigation of the shockwave overpressure fields of multi-sources FAE explosions

et al. 2021

View full text Add to dashboard Cite

TNT Equivalency of Unconfined Aerosols of Propylene Oxide

Cited by 4 publications

References 7 publications

Numerical simulation of disperse process of fuel‐air explosive based on the computational fluid dynamics

Numerical simulation of disperse process of fuel‐air explosive based on the computational fluid dynamics

Optimization of Ejection Characteristics for Twice-Detonating Device in Double-Event Fuel-Air Explosive with High Drop Velocity

Numerical investigation of the shockwave overpressure fields of multi-sources FAE explosions

Contact Info

Product

Resources

About