Preliminary results obtained from the application of SPH for simulating granular flows are presented in the paper. A constitutive equation for a visco-plastic fluid with a pressure dependent yield stress has been employed for simulating the granular material using SPH. The proposed model, taking advantage of well known SPH abilities, can be used to model flows of incoherent granular material with a free surface. The model also represents a first step towards an alternative approach to sediment transport in natural and artificial channels: an extension of the model to multiphase flows might indeed be able to reproduce such phenomena. A first test for the model has been made by reproducing a granular material collapse in which a sand column initially contained inside a cylindrical shaped container, was suddenly released. Numerical results showed a good agreement with existing experimental data.

A SPH APPLICATION TO GRANULAR FLOWS / L. Minatti; E. Paris. - ELETTRONICO. - (2012), pp. 1347-1357. (Intervento presentato al convegno XXXIII Convegno Nazionale di Idraulica e Costruzioni Idrauliche tenutosi a Brescia (I) nel 10-15 settembre 2012).

A SPH APPLICATION TO GRANULAR FLOWS

PARIS, ENIO
2012

Abstract

Preliminary results obtained from the application of SPH for simulating granular flows are presented in the paper. A constitutive equation for a visco-plastic fluid with a pressure dependent yield stress has been employed for simulating the granular material using SPH. The proposed model, taking advantage of well known SPH abilities, can be used to model flows of incoherent granular material with a free surface. The model also represents a first step towards an alternative approach to sediment transport in natural and artificial channels: an extension of the model to multiphase flows might indeed be able to reproduce such phenomena. A first test for the model has been made by reproducing a granular material collapse in which a sand column initially contained inside a cylindrical shaped container, was suddenly released. Numerical results showed a good agreement with existing experimental data.
2012
Atti del XXXIII Convegno Nazionale di Idraulica e Costruzioni Idrauliche
XXXIII Convegno Nazionale di Idraulica e Costruzioni Idrauliche
Brescia (I)
10-15 settembre 2012
L. Minatti; E. Paris
File in questo prodotto:
File Dimensione Formato  
9e-1347_MINATTI_LORENZO-2012.pdf

Accesso chiuso

Tipologia: Versione finale referata (Postprint, Accepted manuscript)
Licenza: Tutti i diritti riservati
Dimensione 1.49 MB
Formato Adobe PDF
1.49 MB Adobe PDF   Richiedi una copia

I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/877522
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact