Evaporation and ignition of droplets in combustion chambers modeling and simulation

Бетелин, В. Б.; Смирнов, Н. Н.; Никитин, В. Ф.; Dushin, V.R.; Kushnirenko, A.G.; Nerchenko, V.A.

doi:10.1016/j.actaastro.2011.06.021

Cited by 161 publications

(20 citation statements)

References 8 publications

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“…The first approach, Eulerian-Lagrangian approach, is based on the continuous-discrete representation of a two-phase mixture. The equations of continuum mechanics for carrier phase are complemented by a system of ordinary differential equations describing the movement path and the change in temperature of each particle [6][7][8]. In the second approach, Eulerian-Eulerian approach, simulation is carried out within the framework of models of interpenetrating continua mechanics.…”

Section: Mathematical Modelmentioning

confidence: 99%

“…The use of experimental methods for studying the interaction of shock waves with elements of an aircraft, as well as the occurrence or, on the contrary, the suppression of detonation waves is hampered due to the danger of structures destruction and high speed of the flow, therefore the development of numerical methods is of urgent interest. Computational technologies allow obtaining and visualizing detailed two-and three-dimensional flow patterns, identifying both local features and integral properties of the processes [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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Interaction of a shock wave with an array of particles and effect of particles on the shock wave weakening

et al. 2017

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Two-phase systems that involve gas-particle or gas-droplet flows are widely used in aerospace and power engineering. The problems of weakening and suppression of detonation during saturation of a gas or liquid flow with the array of solid particles are considered. The tasks, associated with the formation of particles arrays, dust lifting behind a travelling shock wave, ignition of particles in high-speed and high-temperature gas flows are adjoined to safety of space flight. The mathematical models of shock wave interaction with the array of solid particles are discussed, and numerical methods are briefly described. The numerical simulations of interaction between sub-and supersonic flows and an array of particles being in motionless state at the initial time are performed. Calculations are carried out taking into account the influence that the particles cause on the flow of carrier gas. The results obtained show that inert particles significantly weaken the shock waves up to their suppression, which can be used to enhance the explosion safety of spacecrafts.

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Section: Mathematical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Interaction of a shock wave with an array of particles and effect of particles on the shock wave weakening

et al. 2017

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“…In work [10,11], an analytical model of the non-equilibrium evaporation of liquid droplets by using the Navier-Stokes system of equations is discussed. Numerical simulations of liquid droplet combustion in turbulent flows of gaseous oxidant are described in [12][13][14]. The equilibrium and non-equilibrium boundary conditions on the surface of a burning droplet are considered in [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Theoretical and experimental investigations of the interaction of hot gases with liquid in closed volume

Tryshlyakov

Lavruk

2015

Acta Astronautica

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“…The particulate phase is simulated through a Lagrangian deterministic or stochastic tracking models to provide particle trajectories [12][13][14]18]. The virtual mass and Basset forces due to their small magnitudes, and the Magnus force due to lack of knowledge about particle angular momentum are neglected.…”

Section: Particulate Phasementioning

confidence: 99%

“…3 Two-phase flows with inert and burning aluminum particles as well as the influence of particles on acoustic oscillations in the combustion chamber are considered in [2,[12][13][14][15], where the results of numerical simulations based on the Eulerian-Eulerian and Eulerian-Lagrangean approaches and some experimental results are reported.…”

Section: Introductionmentioning

confidence: 99%

Pressure oscillations and instability of working processes in the combustion chambers of solid rocket motors

et al. 2017

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Cite this article as: V.N. Emelyanov, I.V. Teterina, K.N. Volkov and A.U. Garkushev, Pressure oscillations and instability of working processesin the combustion chambers of solid rocket motors, Acta Astronautica, http://dx.doi.org/10. 1016/j.actaastro.2016.09.029 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting galley proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. AbstractMetal particles are widely used in space engineering to increase specific impulse and to supress acoustic instability of intra-champber processes. A numerical analysis of the internal injection-driven turbulent gas-particle flows is performed to improve the current understanding and modeling capabilities of the complex flow characteristics in the combustion chambers of solid rocket motors (SRMs) in presence of forced pressure oscillations. The two-phase flow is simulated with a combined Eulerian-Lagrangian approach. The Reynolds-averaged Navier-Stokes equations and transport equations of -model are solved numerically for the gas. The particulate phase is simulated through a Lagrangian deterministic and stochastic tracking models to provide particle trajectories and particle concentration. The results obtained highlight the crucial significance of the particle dispersion in turbulent flowfield and high potential of statistical methods. Strong coupling between acoustic oscillations, vortical motion, turbulent fluctuations and particle dynamics is observed.

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Evaporation and ignition of droplets in combustion chambers modeling and simulation

Cited by 161 publications

References 8 publications

Interaction of a shock wave with an array of particles and effect of particles on the shock wave weakening

Interaction of a shock wave with an array of particles and effect of particles on the shock wave weakening

Theoretical and experimental investigations of the interaction of hot gases with liquid in closed volume

Pressure oscillations and instability of working processes in the combustion chambers of solid rocket motors

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