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International Journal of Fluid Mechanics Research

Publicou 6 edições por ano

ISSN Imprimir: 2152-5102

ISSN On-line: 2152-5110

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.1 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.0002 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.33 SJR: 0.256 SNIP: 0.49 CiteScore™:: 2.4 H-Index: 23

Indexed in

Modeling of Vertical Fine Suspension Flow
I. Model Foundations and Particle Velocity Fluctuations

Volume 22, Edição 1, 1995, pp. 41-65
DOI: 10.1615/InterJFluidMechRes.v22.i1.40
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RESUMO

This paper presents a heuristic model for the random fluctuating motion found in macroscopically uniform vertical flows of a quiescent suspension. Suspended particles are presumed to be large enough so that their thermal fluctuations are insignificant. At the same time, the particles are presumed to be sufficiently fine so that interparticle exchange by fluctuation energy and momentum is facilitated by hydrodynamic interactions using random fields of ambient fluid velocity and pressure. Particle fluctuations are viewed as the random motion of groups (clusters) composed of fully correlated particles; however, the groups themselves are assumed to be statistically independent. Forces that originate fluctuating motion are caused by the interaction between random fluctuations in suspension concentration and relative fluid flow. These forces are opposed by special friction forces that are caused by an excessive viscous dissipation of energy that accompanies the fluid and particle velocity fluctuations and that supposedly occur mainly within the boundary layers that separate particle groups as these groups move relative to each other. The theory developed in this paper yields expressions for spectral density tensors representing particle and fluid velocity fluctuations; these tensors afford an opportunity to calculate various correlation functions. Vertical and horizontal particle velocity variances and particle self-diffusion coefficients are found to be functions both of physical parameters and mean suspension concentration. They are also shown to agree with available experimental data.

CITADO POR
  1. Sergeev Yuri A., Swailes David C., Predictive model of the turbulent flow of dilute gas–particulate suspension in a vertical pipe, Journal of Rheology, 44, 3, 2000. Crossref

  2. Buyevich Y.A., Fluid dynamics of fine suspension flow, in Advances in the Flow and Rheology of Non-Newtonian Fluids, 8, 1999. Crossref

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