DFT investigation on detonation properties and sensitivities of bridged triazolo[4,5‐d]pyridazine based energetic materials
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DOI: 10.1002/qua.27328
Abstract: A series of bridged triazolo[4,5‐d]pyridazine based energetic materials were optimized at B3LYP/6‐311G(d, p) level of density functional theory (DFT), and their detonation properties and sensitivities were calculated. The results show that the NN bridge/N3 group… read more here.
Keywords: detonation; energetic materials; detonation properties; properties sensitivities ... See more keywords
Molecular Design and Theoretical Study on Dioxadiazine Energetic Compounds Involving Intramolecular Hydrogen Bonds
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DOI: 10.1002/qua.70011
Abstract: The high nitrogen and high oxygen content of energetic dioxadiazine compounds makes them exhibit high detonation performance and good stability, showing possible application in both military and civilian fields. Energetic dioxadiazine compounds with intramolecular hydrogen… read more here.
Keywords: detonation; stability; hydrogen bonds; intramolecular hydrogen ... See more keywords
Detonation re-initiation in a concentric tube arrangement for C$$_2$$2H$$_2$$2/O$$_2$$2/Ar mixtures
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DOI: 10.1007/s00193-016-0698-0
Abstract: Re-initiation of detonation in a concentric tube arrangement where a detonation exiting from a small diameter inner tube to a large diameter outer tube has been investigated. The outer tube diameter D is 50.8 mm… read more here.
Keywords: concentric tube; initiation; tube; velocity ... See more keywords
A comparison of methods for detonation pressure measurement
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DOI: 10.1007/s00193-017-0761-5
Abstract: Detonation pressure is an important parameter describing the process of detonation. The paper compares three methods for determination of detonation pressure on the same explosive charge design. Pressed RDX/wax pellets with a density of $$1.66… read more here.
Keywords: comparison methods; methods detonation; detonation; detonation pressure ... See more keywords
Simulating the blast wave from detonation of a charge using a balloon of compressed air
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DOI: 10.1007/s00193-017-0774-0
Abstract: This paper investigates a simple numerical method, based on the release of a pressurized spherical air volume, to predict or reproduce the main characteristics of the blast environment from the detonation of solid or gaseous… read more here.
Keywords: air; detonation; balloon; simulating blast ... See more keywords
Experimental study of detonation of large-scale powder–droplet–vapor mixtures
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DOI: 10.1007/s00193-017-0795-8
Abstract: Large-scale experiments were carried out to investigate the detonation performance of a 1600-$$\hbox {m}^{3}$$m3 ternary cloud consisting of aluminum powder, fuel droplets, and vapor, which were dispersed by a central explosive in a cylindrically stratified… read more here.
Keywords: large scale; experimental study; charge; powder ... See more keywords
On the deflagration-to-detonation transition (DDT) process with added energetic solid particles for pulse detonation engines (PDE)
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DOI: 10.1007/s00193-017-0800-2
Abstract: In this paper, numerical simulations are performed to study the dynamics of the deflagration-to-detonation transition (DDT) in pulse detonation engines (PDE) using energetic aluminum particles. The DDT process and detonation wave propagation toward the unburnt… read more here.
Keywords: ddt process; detonation; aluminum particles;
Analysis of mixing in high-explosive fireballs using small-scale pressurised spheres
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DOI: 10.1007/s00193-018-0814-4
Abstract: After the detonation of an oxygen-deficient homogeneous high explosive, a phase of turbulent combustion, called afterburning, takes place at the interface between the rich detonation products and air. Its modelling is instrumental for the accurate… read more here.
Keywords: analysis mixing; detonation; mixing high; high explosive ... See more keywords
On the response of annular injectors to rotating detonation waves
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DOI: 10.1007/s00193-019-00900-8
Abstract: A series of three-dimensional, unsteady simulations have been conducted to illuminate the behavior of annular gaseous injectors that are frequently used in rotating detonation engine combustors. The strength (detonation overpressure history) and number of detonation… read more here.
Keywords: rotating detonation; waves response; detonation; detonation waves ... See more keywords
Influence of fuel inhomogeneity on detonation wave propagation in a rotating detonation combustor
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DOI: 10.1007/s00193-024-01180-7
Abstract: Rotating detonation combustor (RDC) is a form of pressure gain combustion, which is thermodynamically more efficient than the traditional constant-pressure combustors. In most RDCs, the fuel–air mixture is not perfectly premixed and results in inhomogeneous… read more here.
Keywords: detonation; fuel; rotating detonation; detonation wave ... See more keywords
Air-breathing rotating detonation engine supplied with liquid kerosene: propulsive performance and combustion stability
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DOI: 10.1007/s00193-024-01185-2
Abstract: Experimental results are presented for a rotating detonation engine supplied with liquid kerosene and preheated air without liquid or gaseous additions to the propellant mixture. Various combustion modes for the generic combustor geometry design were… read more here.
Keywords: detonation; rotating detonation; stability; combustion ... See more keywords