A5075536292- Combustion and flame dynamics
- Combustion and Detonation Processes
- Advanced Combustion Engine Technologies
- Rocket and propulsion systems research
- Energetic Materials and Combustion
- Computational Fluid Dynamics and Aerodynamics
- Catalytic Processes in Materials Science
- Advanced Chemical Physics Studies
- Plasma Applications and Diagnostics
- Laser Design and Applications
- Laser-induced spectroscopy and plasma
- Inorganic Chemistry and Materials
- Catalysis and Oxidation Reactions
- Fluorine in Organic Chemistry
- Fire dynamics and safety research
- Inorganic Fluorides and Related Compounds
- Plasma and Flow Control in Aerodynamics
- Advanced materials and composites
- Boron and Carbon Nanomaterials Research
- Chalcogenide Semiconductor Thin Films
- Drilling and Well Engineering
- Luminescence Properties of Advanced Materials
- Reservoir Engineering and Simulation Methods
- Hydraulic Fracturing and Reservoir Analysis
- Intermetallics and Advanced Alloy Properties
E.O. Paton Electric Welding Institute
2024
Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
2012-2022
Keldysh Institute of Applied Mathematics
2018
Gazprom (Russia)
2016-2017
Technology Centre Prague
2017
Moscow Institute of Physics and Technology
2003-2014
Ural Branch of the Russian Academy of Sciences
2010-2013
Institute of Solid State Chemistry
2010-2013
Russian Academy of Sciences
1991-2013
Ural Federal University
2012
Abstract The oxidation of methyl formate (CH 3 OCHO) has been studied in three experimental environments over a range applied combustion relevant conditions: A variable‐pressure flow reactor used to quantify reactant, major intermediate and product species as function residence time at atm 0.5% fuel concentration for oxygen/fuel stoichiometries 0.5, 1.0, 1.5 900 K, pyrolysis 975 K. Shock tube ignition delays have determined CH OCHO/O 2 /Ar mixtures pressures ≈ 2.7, 5.4, 9.2 temperatures...
The efficiency of nanosecond discharges as an active-particle generator for plasma-assisted combustion and ignition has been shown. kinetics alkane oxidation have investigated from methane to decane in stoichiometric lean mixtures with oxygen air at room temperature under the action high-voltage unform discharge. study barrier discharge influence on a flame propagation blowoff velocity carried out. A significant increase demonstrated. decrease 2-3 orders magnitude delay time comparison...
Abstract This paper presents an overview of experimental and numerical investigations the nonequilibrium cold plasma generated under high overvoltage further usage this for plasma-assisted combustion. Here, two different types discharge are considered: a streamer pressure so-called fast ionization wave (FIW) at low pressure. The comprehensive investigation processes alkane slow oxidation in mixtures with oxygen air nanosecond uniform has been performed. kinetics measured from methane to...
The Future Fuels project combines research in several institutes of the German Aerospace Center (DLR) on production and use synthetic fuels for space, energy, transportation, aviation. This article gives an overview questions considered results achieved so far also provides insight into multidimensional interdisciplinary approach. Various methods models were used which are embedded context based established approaches. prospects large-scale fuel using renewable electricity solar radiation...
A skeletal methane kinetic mechanism is developed for conditions relating to the combustion of undiluted methane–oxygen mixtures at high pressures. The new based on detailed oxidation alkanes by Zhukov (2009). model has been created eliminating unimportant species and reactions from mechanism. reduction technique reaction path sensitivity analyses. They allow one determine that play important roles in rocket chambers. consists 23 51 reactions. final intermediate versions are compared with...
A single-element combustor known as the "Penn State preburner combustor" is modeled numerically using commercial computational fluid dynamics code ANSYS CFX. The aim of modeling to simulate wall heat flux, which has been measured experimentally. simulated combustion chamber a single shear coaxial injector and operates with gaseous oxygen hydrogen in staged configuration. turbulent flow Favre-averaged Navier–Stokes equations shear-stress transport turbulence model. non-premixed flame an...
We present first-principle evaluations of the electron-phonon coupling strength parameter and associated characteristics relaxation for excited electrons in conduction band zinc oxide. The are based on pseudopotential plane-wave approach to electronic structure, density-functional perturbation theory calculations phonons interactions, ``Fermi golden rule'' electron time energy-loss time. demonstrate existence two types dynamics, picosecond one near bottom femtosecond higher energies....
This work describes the kinetic model of alkane oxidation which is result creating a united mechanism for whole homologous series hydrocarbons, in this case from methane to n-heptane. The detail consists 549 species and 2518 reactions. developed was validated against experimental data shock tube. agrees well with over wide range temperatures 850 K 1700 at pressure up 530 atm. behaviour ignition high interpreted help model.
An experimental sutdy of ignition and detonation initiation by two different kinds high-voltage pulsed gas discharge has been performed in smooth tubes. The experiments were carried out at pressures ranging from 0.15 to 1 bar various gaseous stoichiometric mixtures. In the first setup, a distributed nonequilibrium nanosecond was used for mixture excitation ignition. second localized microsecond spark with stored energy 14 J developed. electrical parameters discharges, delay time, flame...
A one-step, a two-step, an abridged, skeletal and four detailed kinetic schemes of hydrogen oxidation have been tested. new scheme has developed. The CFD calculations were carried out using ANSYS CFX software. Ignition delay times speeds flames derived from the computational results. data obtained CHEMKIN, experimental compared. precision, reliability, range validity in simulations estimated. impact on results computations was discussed. relationship between grid spacing, timestep, accuracy,...
The impact of methane combustion kinetics on a rocket nozzle flow is theoretically studied in the work. To evaluate effect kinetics, simulations are carried out using computational fluid dynamics solver Fluent. At first, kinetic model selected. comparison different models shows that recent skeletal mechanism Zhukov and Kong has very good accuracy at small size. For comparison, performed both for hydrogen/oxygen methane/oxygen propellant combinations, three reaction models: non-reactive...
In this study, a single injector methane-oxygen rocket combustor is numerically studied. The simulations included in study are based on the hardware and experimental data from Technical University of Munich. focus recently developed generalized k–ω turbulence model (GEKO) effect its adjustable coefficients pressure wall heat flux profiles, which compared with data. It was found that ‘jet’, ‘near-wall’, ‘mixing’ have major impact, whereas opposite can be deduced about ‘separation’ parameter...
An experimental study of ignition and detonation initiation by a non-equilibrium highvoltage nanosecond gas discharge has been performed. The experiments were carried out at different pressures ranging from 0.15 to 1 atm in various stoichiometric mixtures: C3H8 + 5O2, C3H8/C4H10 5O2 xN2 (0≤x≤10), 0.5C6H14 (0≤x≤3), air. was ignited 60 ns electrical pulse with amplitude up 70 kV. energy deposition ranged mJ 14 J. Electrical parameters the discharge, delay time, flame front shock wave...