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Cited by 24 publications
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“…The effect of initial pressure increase on transition to detonation is displayed in Figures 1 and 2 by pressure records along the tube length and in Figure 3 by shock velocities averaged between two gauge locations for the 0.11lID Al-air mixtures with a dust concentration of 400 g/m 3 • Note that a dust concentration of 310 g/m 3 would be a reference point of a stoichiometric Al-air mixture assuming Ab03 and nitrogen would be the only detonation products. Owing to the strong initiation source, a shock wave is developed at 2.18 m with a shock velocity of mls at the initial pressure of Po = 1 -2.5 atm.…”
Section: Transition To Detonationmentioning
confidence: 99%
See 1 more Smart Citation
“…The effect of initial pressure increase on transition to detonation is displayed in Figures 1 and 2 by pressure records along the tube length and in Figure 3 by shock velocities averaged between two gauge locations for the 0.11lID Al-air mixtures with a dust concentration of 400 g/m 3 • Note that a dust concentration of 310 g/m 3 would be a reference point of a stoichiometric Al-air mixture assuming Ab03 and nitrogen would be the only detonation products. Owing to the strong initiation source, a shock wave is developed at 2.18 m with a shock velocity of mls at the initial pressure of Po = 1 -2.5 atm.…”
Section: Transition To Detonationmentioning
confidence: 99%
“…While micrometric aluminium dust-air detonation at atmospheric conditions is feasible in large tubes using a strong initiation source [1][2][3][4], the detonation properties and structure at elevated pressures have not been carefully investigated. For organic dust with a high volatile content, the detonation sensitivity is increased with increasing init ial pressure, approximately following the scaling rule of gaseous detonations in which the detonation cell size is inversely proportional to initial pressure [4][5].…”
Section: Introductionmentioning
confidence: 99%
“…Particle sizes ranging from 0.1 microns to 100 microns were investigated and the optimal size of Al particles was found to be about 40 microns [6]. A suspension in air of micron size Al particles supported a detonation wave in tubes [7,8]. Initiation of detonation was investigated in an explosively generated cloud of Al particles (atomized H-2 Al and Àaked Al) using 8 kg C4 explosive and detonation was observed only in the Àaked Al with 4-8 MPa peak pressures [9].…”
Section: Introductionmentioning
confidence: 99%
“…(8) and (9), the total reaction rate can be calculated. For the diffusion combustion [32], the reaction rate…”
Section: Combustion Modelmentioning
confidence: 99%
“…Tulis and Selman [7] studied Al dusty detonations for flake and spherical particles, and demonstrated that the specific area is a very sensitive parameter. Borisov et al [8] examined the role of particle dimensions and noted that the parameters velocity and the pressure depend on the minimum particle scale. Zhang et al [9] investigated transverse waves in dusty detonations and calculated, using a detonation model, the minimum tube diameter for generating detonation.…”
Section: Introductionmentioning
confidence: 99%