Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/99056
Citations
Scopus Web of Science® Altmetric
?
?
Type: Journal article
Title: A new SPH-based approach to simulation of granular flows using viscous damping and stress regularisation
Author: Nguyen, C.
Nguyen, C.
Bui, H.
Nguyen, G.
Fukagawa, R.
Citation: Landslides, 2017; 14(1):69-81
Publisher: Springer
Issue Date: 2017
ISSN: 1612-510X
1612-5118
Statement of
Responsibility: 
Cuong T. Nguyen, Chi T. Nguyen, Ha H. Bui, Giang D. Nguyen, Ryoichi Fukagawa
Abstract: The smoothed particle hydrodynamics (SPH) method was recently extended to simulate granular materials by the authors and demonstrated to be a powerful continuum numerical method to deal with the post-flow behaviour of granular materials. However, most existing SPH simulations of granular flows suffer from significant stress oscillation during the post-failure process, despite the use of an artificial viscosity to damp out stress fluctuation. In this paper, a new SPH approach combining viscous damping with stress/strain regularisation is proposed for simulations of granular flows. It is shown that the proposed SPH algorithm can improve the overall accuracy of the SPH performance by accurately predicting the smooth stress distribution during the post-failure process. It can also effectively remove the stress oscillation issue in the standard SPH model without having to use the standard SPH artificial viscosity that requires unphysical parameters. The predictions by the proposed SPH approach show very good agreement with experimental and numerical results reported in the literature. This suggests that the proposed method could be considered as a promising continuum alternative for simulations of granular flows.
Keywords: SPH; Granular flow; Granular column; Failure mechanism
Description: Original paper
Rights: © Springer-Verlag Berlin Heidelberg 2016
RMID: 0030045782
DOI: 10.1007/s10346-016-0681-y
Grant ID: http://purl.org/au-research/grants/arc/LP130100088
http://purl.org/au-research/grants/arc/DP160100775
http://purl.org/au-research/grants/arc/DP140100945
http://purl.org/au-research/grants/arc/FT140100408
Appears in Collections:Civil and Environmental Engineering publications

Files in This Item:
There are no files associated with this item.


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