NDLI: A new theoretical method for analyzing confined dry granular flows

Content Provider	Springer Nature Link
Author	Zhou, Gordon G. D. Ng, Charles W. W. Sun, Q. C.
Copyright Year	2013
Abstract	A granular body may deform in a continuous fashion such that the solid particles remain in close contact. Previous research works have always used the frictional Coulomb-like continuum treatment for analyzing granular bodies. However, this approach is only applicable for quasi-static conditions and cannot capture the complicated granular contact behavior of solid particles inside a failing granular body. This paper applies a revised Savage–Hutter equation to model granular flows moving down a confined, sloping channel. The Coulomb contact friction law is modified to consider the effect of the shear rate inside a granular body. This new method also considers the confinement effect of a sloping channel on granular flow mobility. The derived depth-averaged equations of motion bear a resemblance to nonlinear shallow-water wave equations. Results computed using the derived equations are compared with measurements from flume model tests, and consistency is found between the two.
Starting Page	369
Ending Page	384
Page Count	16
File Format	PDF
ISSN	1612510X
Journal	Landslides
Volume Number	11
Issue Number	3
e-ISSN	16125118
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-04-03
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Theoretical solution Confined granular flow Modified Savage–Hutter model Contact friction law Natural Hazards Geography (general) Agriculture Civil Engineering
Content Type	Text
Resource Type	Article
Subject	Geotechnical Engineering and Engineering Geology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

A new SPH-based approach to simulation of granular flows using viscous damping and stress regularisation

Froude characteristics of both dense granular and water flows in flume modelling

Kinematics and internal deformation of granular slopes: insights from discrete element modeling

Empirical and analytical analyses of laboratory granular flows to investigate rock avalanche propagation

Modes of propagation and deposition of granular flows onto an erodible substrate: experimental, analytical, and numerical study

A modified frequency ratio method for landslide susceptibility assessment

Two-dimensional landslide dynamic simulation based on a velocity-weakening friction law

Simulation of interactions among multiple debris flows

First results derived from a drop-tower testing system for granular flow in a microgravity environment

A new theoretical method for analyzing confined dry granular flows

Similar Documents

A new SPH-based approach to simulation of granular flows using viscous damping and stress regularisation

Froude characteristics of both dense granular and water flows in flume modelling

Kinematics and internal deformation of granular slopes: insights from discrete element modeling

Empirical and analytical analyses of laboratory granular flows to investigate rock avalanche propagation

Modes of propagation and deposition of granular flows onto an erodible substrate: experimental, analytical, and numerical study

A modified frequency ratio method for landslide susceptibility assessment

Two-dimensional landslide dynamic simulation based on a velocity-weakening friction law

Simulation of interactions among multiple debris flows

First results derived from a drop-tower testing system for granular flow in a microgravity environment

A new theoretical method for analyzing confined dry granular flows