The rheology of submerged granular flows is described according to a heuristic model recently proposed by Armanini et al. (2014), which is a single parameter model, based on the fundamental evidence that the collisional and the frictional regimes coexist across the flow depth. The main novelty of the heuristic model is to provide an equation of state valid also for the frictional regime. Investigations on the role of the drag force in the balances of uniform submerged granular flows are presented. A new relation of the voidage function valid for all the values of concentration is derived.

INVESTIGATIONS ON THE DRAG FORCE IN SUBMERGED GRANULAR FLOWS / Armanini, A; Nucci, E; Larcher, M. - (2015), pp. 1599-1604. ((Intervento presentato al convegno 36TH IAHR WORLD CONGRESS tenutosi a Den Haag nel JUN 28-JUL 03, 2015.

INVESTIGATIONS ON THE DRAG FORCE IN SUBMERGED GRANULAR FLOWS

Armanini, A;Nucci, E;Larcher, M
2015

Abstract

The rheology of submerged granular flows is described according to a heuristic model recently proposed by Armanini et al. (2014), which is a single parameter model, based on the fundamental evidence that the collisional and the frictional regimes coexist across the flow depth. The main novelty of the heuristic model is to provide an equation of state valid also for the frictional regime. Investigations on the role of the drag force in the balances of uniform submerged granular flows are presented. A new relation of the voidage function valid for all the values of concentration is derived.
PROCEEDINGS OF THE 36TH IAHR WORLD CONGRESS: DELTAS OF THE FUTURE AND WHAT HAPPENS UPSTREAM
Armanini, A
PASEO BAJO VIRGEN DEL PUERTO 3, MADRID, 28005, SPAIN
IAHR-INT ASSOC HYDRO-ENVIRONMENT ENGINEERING RESEARCH
Armanini, A; Nucci, E; Larcher, M
INVESTIGATIONS ON THE DRAG FORCE IN SUBMERGED GRANULAR FLOWS / Armanini, A; Nucci, E; Larcher, M. - (2015), pp. 1599-1604. ((Intervento presentato al convegno 36TH IAHR WORLD CONGRESS tenutosi a Den Haag nel JUN 28-JUL 03, 2015.
File in questo prodotto:
File Dimensione Formato  
Armanini_et_al-IAHR-2015-paper.pdf

Solo gestori archivio

Tipologia: Versione editoriale (Publisher’s layout)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 245.9 kB
Formato Adobe PDF
245.9 kB Adobe PDF   Visualizza/Apri

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

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11572/202349
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? 0
social impact