Gas-Monodisperse Dust Mixtures in Smoothed Particle Hydrodynamics: Computing of Stiff Non-linear Drag | Sciact - CRIS-система Института катализа

Gas-Monodisperse Dust Mixtures in Smoothed Particle Hydrodynamics: Computing of Stiff Non-linear Drag Научная публикация

Конференция

Second Workshop on Numerical Modeling in MHD and Plasma Physics: Methods, Tools, and Outcomes
10-11 окт. 2019 , Moscow

Журнал

Journal of Physics: Conference Series
ISSN: 1742-6588 , E-ISSN: 1742-6596

Вых. Данные

Год: 2019, Том: 1336, Номер статьи : 012015, Страниц : 9 DOI: 10.1088/1742-6596/1336/1/012015

Ключевые слова

Drag DustIterative methods Magnetohydrodynamics Numerical methods Numerical models Relaxation time Velocity

Авторы

Stoyanovskaya O P ^1,2 , Glushko T A ^1,2 , Okladnikov F A ^1,2 , Snytnikov V N ^1,2,3 , Snytnikov N V ^1,4

Организации

1	Lavrentyev Institute of Hydrodynamics SB RAS
2	Novosibirsk State University
3	Boreskov Institute of Catalysis SB RAS
4	Institute of Computational Mathematics and Mathematical Geophysics SB RAS

Информация о финансировании (1)

Российский научный фонд

19-71-10026

Simulation the dynamics of gas-solid mixtures is crucial in many applications: chemical reactor design, evolution of circumstellar discs, etc. Such mixtures where gas is a carrier phase and solid grains are dispersed phase can be simulated as interpenetrating continuum media. The characteristic parameter of this problem is relaxation time between gas and dust velocities. In many applications this parameter varies significantly during the simulation (from small to unity). Moreover, the drag force can be non-linearly dependent on solids to gas relative velocity. These factors place high requirements on the numerical methods for such problems. We propose a novel non-iterative algorithm for Smoothed Particle Hydrodynamics for computing gas-solid mixtures with exchange momentum between phases. Forces (except drag force) are approximated explicitly, while drag force is linearized and velocity relaxation time is approximated explicitly while relative velocity is approximated implicitly. The algorithm was tested on dynamical problems for dusty gas mixtures. It was shown that in the developed algorithm for stiff nonlinear drag we can use temporal and spatial resolution independent of drag parameters. © 2019 IOP Publishing Ltd. All rights reserved.

Stoyanovskaya O.P. , Glushko T.A. , Okladnikov F.A. , Snytnikov V.N. , Snytnikov N.V.
Gas-Monodisperse Dust Mixtures in Smoothed Particle Hydrodynamics: Computing of Stiff Non-linear Drag

Journal of Physics: Conference Series. 2019. V.1336. 012015 :1-9. DOI: 10.1088/1742-6596/1336/1/012015 Scopus РИНЦ CAPlus OpenAlex

Полный текст от издателя

Поступила в редакцию:	11 сент. 2019 г.
Опубликована в печати:	20 нояб. 2019 г.
Опубликована online:	20 нояб. 2019 г.

Scopus:	2-s2.0-85076222509
РИНЦ:	43212228
Chemical Abstracts:	2020:866043
OpenAlex:	W2990978447

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