Please use this identifier to cite or link to this item:
Type: Artigo de periódico
Title: Length Scale Of Density Waves In The Gravitational Flow Of Fine Grains In Pipes
Author: Franklin
Erick de Moraes; Zambrano
Carlos Alvarez
Abstract: Gravitational flow of grains in pipes is frequently encountered in industry. When the grains and pipes are size-constrained, granular flow may result in density waves consisting of alternate high- and low-compactness regions. This paper discusses the length scale of density waves that appear when fine grains fall vertically in pipes. A one-dimensional model and a linear stability analysis of the model are presented. The analysis suggests the presence of long-wavelength instability for the most unstable mode, moreover, a cutoff wavenumber from which the length scale is estimated. Finally, the model results are compared to experimental data.
Subject: Vertical Pipe
Granular Material
Rights: fechado
Identifier DOI: 10.1007/s40430-014-0291-3
Date Issue: 2015
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
File SizeFormat 
wos_000362236300007.pdf1.07 MBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.