A5015319240- Combustion and Detonation Processes
- Advanced Combustion Engine Technologies
- Combustion and flame dynamics
- Energetic Materials and Combustion
- Gas Dynamics and Kinetic Theory
- Advanced Chemical Physics Studies
- Spectroscopy and Laser Applications
- Atmospheric chemistry and aerosols
- Laser Design and Applications
- Rocket and propulsion systems research
- Carbon Nanotubes in Composites
- Advanced Memory and Neural Computing
- Laser-induced spectroscopy and plasma
- Laser-Plasma Interactions and Diagnostics
- Plasma Applications and Diagnostics
- Thermochemical Biomass Conversion Processes
- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- Dust and Plasma Wave Phenomena
- Atomic and Molecular Physics
- Astrophysics and Star Formation Studies
- nanoparticles nucleation surface interactions
- Laser-Matter Interactions and Applications
- Fire dynamics and safety research
- Transition Metal Oxide Nanomaterials
Joint Institute for High Temperatures
2013-2024
Russian Academy of Sciences
2000-2013
Institute for High Energy Physics
2002-2011
High-temperature oxidation of acetylene (C2H2) is studied behind reflected shock waves and in laminar flames. Atomic resonance absorption spectroscopy (ARAS) employed to record oxygen atom concentration profiles for the mixture 10 ppm C2H2 + N2O argon temperatures from 1688 K 3179 K, extending range such data available literature. Laminar burning velocity a diluted oxidizer with 11–13% O2 N2 measured using heat flux method compared literature 13% mixture. An updated detailed kinetic...
The influence of quantum effects on the processes initiation combustion and detonation hydrogen acetylene near low-temperature limits at elevated pressures is analyzed. A theoretical consideration which allows quantification corrections to rate constants endothermic reactions associated with an increase in high-energy tail equilibrium momentum distribution function high presented. This effect caused by a manifestation principle uncertainty for energy colliding particles frequency collisions....
Abstract The present work expands previous studies on the kinetics of n-C 3 H 7 I unimolecular decomposition and thermodynamic properties i-C molecules, by providing combined experimental theoretical data rate constant for reaction + Ar ⇌ Ar, as well iodopropane isomers, calculated based density functional theory. dissociation has been precisely determined in shock-tube experiments applying atomic resonance absorption spectrometry (ARAS) at transition wavelength iodine (183.0 nm) a...
An experimental observation of a detonation wave driven by the energy condensation supersaturated carbon vapor is reported. The was formed thermal decay unstable suboxide ${\mathrm{C}}_{3}{\mathrm{O}}_{2}$ behind shock waves in mixtures containing 10--30% Ar. In mixture 10% ${\mathrm{C}}_{3}{\mathrm{O}}_{2}+\mathrm{Ar}$ insufficient heat release resulted regime overdriven detonation. 20% measured values pressure and velocity coincident with calculated Chapman-Jouguet parameters were...
The kinetics of the dissociation CF3I behind shock waves was experimentally investigated. reaction + Ar → CF3 I studied at temperatures between 900 and 1250 K pressures 2–3 bar. For this purpose, time profiles concentration atomic iodine were measured using a highly sensitive resonance absorption spectroscopy method wavelength 183.04 nm. From these data, experimental value rate constant obtained: . We found that investigated range for lies in pressure transition region. Based on...
Abstract In this work the results of numerous experiments on carbon particle formation in combustion and pyrolysis various bearing molecules behind shock waves wide temperature range from 1200K to 3500K are analyzed. It is shown, that discrepancy temperatures maximum yield could be attributed differences endothermicy optical density at 633nm all mixtures can related same temperture T =1600K. Based consideration, several statements were formulated. First – growth described by uniform...
Abstract The formation of particles following the photolysis C 3 O 2 , Fe(CO) 5 and Mo(CO) 6 diluted with Ar or He was registered at room temperature. Particle growth followed by taking light extinction profiles 633nm 220nm for various mixture compositions pressures. obtained different conditions were analyzed using transition electron microscope (TEM) technique. It found that in pure undiluted gases partial pressures shown pictures no absorption particle could be observed. Light started...
An experimental investigation of nonequilibrium radiation and ionization in shock waves, propagating inert gases with a small admixture iron pentacarbonyl, was carried out. The time-resolved spectra intensity free electron concentration at various shock-heated flow parameters were obtained. analysis the results allowed us to conclude that radiating ionizing species are clusters excited exothermic reactions condensation supersaturated vapour, forming after instant decomposition pentacarbonyl...