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dc.contributor.authorStoyanovskaya, Olga P.
dc.contributor.authorGlushko, Tatiana A.
dc.contributor.authorSnytnikov, Valery N.
dc.contributor.authorSnytnikov, Nicolay V.
dc.date.accessioned2020-05-08T16:15:15Z
dc.date.available2020-05-08T16:15:15Z
dc.date.issued2019
dc.identifier.isbn978-84-121101-1-1
dc.identifier.urihttp://hdl.handle.net/2117/186884
dc.description.abstractSimulations 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 in- tephase interaction, when velocity relaxation time tstop is much smaller than dynamical time of the problem. In explicit schemes the time step τ 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.
dc.format.extent9 p.
dc.language.isoeng
dc.publisherCIMNE
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits
dc.subject.lcshFinite element method
dc.subject.lcshComputational methods in mechanics
dc.subject.lcshParticle methods (Numerical analysis)
dc.subject.otherGas dust mixture, gas-solid mixture, aerosol particle, intense interphase interaction, stiff relaxation term, asymptotic preserving method, Smoothed Particle Hydrodynamics, SPH, Two Fluid Smoothed Particle Hydrodynamics, TFSPH
dc.titleMonodisperse gas-solid mixtures with intense interphase interaction in two-fluid smoothed particle hydrodynamics
dc.typeConference report
dc.subject.lemacElements finits, Mètode dels
dc.rights.accessOpen Access
local.citation.contributorPARTICLES VI
local.citation.publicationNamePARTICLES VI : proceedings of the VI International Conference on Particle-Based Methods : fundamentals and applications
local.citation.startingPage754
local.citation.endingPage762


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