Monodisperse gas-solid mixtures with intense interphase interaction in two-fluid smoothed particle hydrodynamics

Olga P. Stoyanovskaya, Tatiana A. Glushko, Valery N. Snytnikov, Nicolay V. Snytnikov

Результат исследования: Публикации в книгах, отчётах, сборниках, трудах конференцийстатья в сборнике материалов конференциинаучнаярецензирование

2 Цитирования (Scopus)

Аннотация

Simulations of gas-solid mixtures are used in many scientific and industrial applications. Two-Fluid Smoothed Particle Hydrodynamics (TFSPH) is an approach when gas and solids are simulated with different sets of particles interacting via drag force. Several methods are developed for computing drag force between gas and solid grains for TFSPH. Computationally challenging are simulations of gas-dust mixtures with intense intephase interaction, when velocity relaxation time tstop is much smaller than dynamical time of the problem. In explicit schemes the time step t must be less than tstop, that leads to high computational costs. Moreover, it is known that for stiff problems both grid-based and particle methods may require unaffordably detailed resolution to capture the asymptotical bahaiviour of the solution. To address this problem we developed fast and robust method for computing stiff and mild drag force in gas solid-mixtures based on the ideas of Particle-in-Cell approach. In the paper we compare the results of new and previously developed methods on test problems.

Язык оригиналаанглийский
Название основной публикации6th International Conference on Particle-Based Methods. Fundamentals and Applications, PARTICLES 2019
РедакторыEugenio Onate, P. Wriggers, T. Zohdi, M. Bischoff, D.R.J. Owen
ИздательInternational Center for Numerical Methods in Engineering
Страницы754-762
Число страниц9
ISBN (электронное издание)9788412110111
СостояниеОпубликовано - 2019
Событие6th International Conference on Particle-Based Methods. Fundamentals and Applications, PARTICLES 2019 - Barcelona, Испания
Продолжительность: 28 окт 201930 окт 2019

Серия публикаций

Название6th International Conference on Particle-Based Methods. Fundamentals and Applications, PARTICLES 2019

Конференция

Конференция6th International Conference on Particle-Based Methods. Fundamentals and Applications, PARTICLES 2019
СтранаИспания
ГородBarcelona
Период28.10.201930.10.2019

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