| Инд. авторы: | Stoyanovskaya O.P., Akimkin V.V., Vorobyov E.I., Glushko T.A., Pavlyuchenkov Y.N., Snytnikov V.N., Snytnikov N.V. |
| Заглавие: | Development and application of fast methods for computing momentum transfer between gas and dust in supercomputer simulation of planet formation |
| Библ. ссылка: | Stoyanovskaya O.P., Akimkin V.V., Vorobyov E.I., Glushko T.A., Pavlyuchenkov Y.N., Snytnikov V.N., Snytnikov N.V. Development and application of fast methods for computing momentum transfer between gas and dust in supercomputer simulation of planet formation // Journal of Physics: Conference Series. - 2018. - Vol.1103. - Iss. 1. - Art.012008. - ISSN 1742-6588. - EISSN 1742-6596. |
| Внешние системы: | DOI: 10.1088/1742-6596/1103/1/012008; РИНЦ: 38624170; SCOPUS: 2-s2.0-85056414942; |
| Реферат: | eng: Circumstellar discs, from which planetary systems are formed, consist of gas, dust and solids. Simulations of self-consistent dynamics of gas, dust and solids in circumstellar discs is a challenging problem. In the paper we present fast algorithms for computing the drag force (momentum transfer) between solid phase and gas. These algorithms (a) are universal and applicable to dust and solids with any sizes smaller than the mean free path of gas molecules, (b) can be used to calculate the momentum transfer between dust and gas instead of one-way effect, as it is done in many models, (c) can perform simulations, without a loss in accuracy, with the time step determined by gas-dynamic parameters rather than by drag force, and (d) are compatible with the widely used parallel algorithms for solving 3D equations of gas dynamics, hydrodynamic equations for dust, and the collisionless Boltzmann equation for large bodies. Preliminary results of supercomputer simulation of the gas-dust disc dynamics within the developed approach are reported. © 2018 Institute of Physics Publishing. All rights reserved. |
| Ключевые слова: | Drag; Dust; Gas dynamics; Magnetohydrodynamics; Momentum; Momentum transfer; Numerical methods; Numerical models; Stars; Supercomputers; Three dimensional computer graphics; Collisionless boltzmann equations; Gases; Supercomputer simulations; Planetary system; Planet formation; Hydrodynamic equations; Gas dynamic parameters; Fast algorithms; Boltzmann equation; Development and applications; |
| Издано: | 2018 |
| Физ. характеристика: | 012008 |
| Конференция: | Название: Workshop on Numerical Modeling in MHD and Plasma Physics: Methods, Tools, and Outcomes. Honor of academician Anatoly Alekseev's 90th Birthday Город: Novosibirsk Страна: Russia Даты проведения: 2018-10-11 - 2018-10-12 Ссылка: http://conf.nsc.ru/mhd18/en/ |