Mathematical simulation of hydrogen–oxygen combustion in rocket engines using LOGOS code

Бетелин, В. Б.; Shagaliev, R.M.; Aksenov, S.V.; Belyakov, I.M.; Deryuguin, Yu.N.; Korchazhkin, D.A.; Козелков, А. С.; Никитин, В. Ф.; Sarazov, A. V.; Zelenskiy, D.K.

doi:10.1016/j.actaastro.2013.11.008

Cited by 32 publications

(13 citation statements)

References 21 publications

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“…In case averaged models are used accounting for turbulence, then velocities in the equations (1) -(4) should be regarded as mean ones, and specific energy should include also kinetic energy of turbulent pulsations. The kinetic theory of multi-component gas mixtures is used for developing diffusion mass, momentum and energy fluxes [2,18,19].…”

Section: Mathematical Modelmentioning

confidence: 99%

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Supercomputer predictive modeling for ensuring space flight safety

2015

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Section: Mathematical Modelmentioning

confidence: 99%

“…Mathematical simulations are necessary to develop combustion chambers characterized by rapid stabilization of combustion regime free from oscillations and shock waves formation [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Supercomputer predictive modeling for ensuring space flight safety

2015

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“…Differences in the calculated data can be related to the geometric feature of the region characterized by a large number of dihedral angles. Thus, in [23], the problem of the flow of a liquid in a tube with a square cross section shows that the SST model gives a large error and for such problems the application of the EARSM model allowing modeling of the influence on the main flow of all components of the Reynolds stress tensor is shown. Using this model significantly reduced the computational error, the standard deviation of the EARSM results was about 2.5%.…”

Section: Numerical Experimentsmentioning

confidence: 99%

“…This package is the Russian software product of engineering analysis intended for solving conjugate three-dimensional problems of convective heat and mass transfer, aerodynamics, and hydrodynamics on parallel computers. The LOGOS software package has successfully passed the verification and has shown quite good results on a series of various hydrodynamic problems [8,9,17,22,23], including calculations of turbulent and nonstationary flows [20,21] and geophysical phenomena [24][25][26]. difference are characterized by the presence of different-scale vortex structures considering the main features of naturally convective flow and are widely used in engineering applications.…”

Section: Numerical Experimentsmentioning

confidence: 99%

Simulation of Turbulent Convection at High Rayleigh Numbers

Dmitriev

Козелков

Kurkin

et al. 2018

Modelling and Simulation in Engineering

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The paper considers the possibility of using different approaches to modeling turbulence under conditions of highly developed convection at high Rayleigh numbers. A number of industrially oriented problems with experimental data have been chosen for the study. It is shown that, at Rayleigh numbers from 10 9 to 10 17 , the application of the eddy-resolving LES model makes it possible to substantially increase the accuracy of modeling natural convection in comparison with the linear vortex viscosity model SST. This advantage is most pronounced for cases of a vertical temperature difference with the formation of a large zone of convection of strong intensity. The use of the Reynolds stress model EARSM is shown for cases of natural convective flow in domains with dihedral angles in the simulated region and the predominance of secondary currents. When simulating a less intense convective flow, when the temperature difference is reached at one boundary, the differences in the approaches used to model turbulence are less significant. It is shown that, with increasing values of Rayleigh numbers, errors in the determination of thermohydraulic characteristics increase and, for more accurate determination of them, it is expedient to use eddy-resolving approaches to the modeling of turbulence.

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“…The LOGOS software package has been tested for the given class of problems and has shown sufficiently reliable results , 2016bVolkov et al, 2013;Betelin et al, 2014;Deryugin et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Numerical modeling of the 2013 meteorite entry in Lake Chebarkul, Russia

Козелков

Kurkin

Pelinovsky

et al. 2017

Nat. Hazards Earth Syst. Sci.

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Abstract. The results of the numerical simulation of possible hydrodynamic perturbations in Lake Chebarkul (Russia) as a consequence of the meteorite fall of 2013 (15 February) are presented. The numerical modeling is based on the Navier-Stokes equations for a two-phase fluid. The results of the simulation of a meteorite entering the water at an angle of 20 • are given. Numerical experiments are carried out both when the lake is covered with ice and when it is not. The estimation of size of the destructed ice cover is made. It is shown that the size of the observed ice hole at the place of the meteorite fall is in good agreement with the theoretical predictions, as well as with other estimates. The heights of tsunami waves generated by a small meteorite entering the lake are small enough (a few centimeters) according to the estimations. However, the danger of a tsunami of meteorite or asteroid origin should not be underestimated.

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Mathematical simulation of hydrogen–oxygen combustion in rocket engines using LOGOS code

Cited by 32 publications

References 21 publications

Supercomputer predictive modeling for ensuring space flight safety

Supercomputer predictive modeling for ensuring space flight safety

Simulation of Turbulent Convection at High Rayleigh Numbers

Numerical modeling of the 2013 meteorite entry in Lake Chebarkul, Russia

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