Numerical Simulation of Formation of Cellular Heterogeneous Detonation of Aluminum Particles in Oxygen

2005 ◽  
Vol 41 (4) ◽  
pp. 435-448 ◽  
Author(s):  
A. V. Fedorov ◽  
T. A. Khmel’
Keyword(s):  
Numerical Simulation ◽  
Aluminum Particles ◽  
Heterogeneous Detonation

scholarly journals NUMERICAL SIMULATION OF THE SWIRLED FLOW OF WATER STEAM PLASMA WITH ALUMINUM MICROPARTICLES

2021 ◽  
Vol 6 (4) ◽  
pp. 25-34
Author(s):  
I. P. Zavershinskii ◽  
D. P. Porfirev
Keyword(s):  
Numerical Simulation ◽  
Water Vapor ◽  
Vortex Flow ◽  
Discharge Plasma ◽  
Pure Water ◽  
Kinetic Scheme ◽  
Molecular Complexes ◽  
Aluminum Particles ◽  
Water Steam ◽  
Heating Source

A study of the discharge plasma with a vortex flow of an argon + water vapor mixture with aluminum particles in a tube of a plasma vortex reactor (PVR) was carried out. The parameters of the discharge, plasma, and working flow in the PVR have been measured. Spectral methods were used to estimate the electron temperature, rotational and vibrational temperatures of excited molecular complexes, the temperature of metal clusters, and the electron density of plasma. A kinetic scheme is proposed for calculating the operating modes in a reactor using a water vapor discharge with aluminum particles. Numerical simulation of a vortex flow of pure water vapor with aluminum particles in the presence of a heating source is carried out.

Numerical Simulation of Combustion of a Metallized Composite Solid Propellant with Additives of Nanosized Aluminum Particles

2018 ◽  
Vol 769 ◽  
pp. 346-351 ◽  
Author(s):  
Vasiliy A. Poryazov ◽  
Aleksey Yu. Krainov
Keyword(s):  
Numerical Simulation ◽  
Solid Propellant ◽  
Gas Flow ◽  
Burning Surface ◽  
Combustion Products ◽  
Aluminum Particles ◽  
Composite Solid Propellant ◽  
Exothermic Chemical Reaction ◽  
Composite Solid ◽  
Metallized Composite Solid Propellant

The paper presents a numerical simulation of combustion of a metallized composite solid propellant with additives of micron-and nanosized aluminum particles. The model takes into account the thermal effect of decomposition of the condensed phase, convection, diffusion, the exothermic chemical reaction in the gas phase, heating and combustion of aluminum particles in the gas flow, the flow of combustion products, the particle velocity lag relative to the gas. The effect of the Al particle size and mass fraction, emitted from the burning surface, on the burning rate is also taken into consideration.

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