NDLI: Numerical Investigation of Crater Phenomena in a Particle Stream Impact onto a Granular Bed

Content Provider	Springer Nature Link
Author	Wu, S. M. Zhu, H. P. Yu, A. B. Zulli, P.
Copyright Year	2006
Abstract	This paper presents an experimental and numerical study of the impact of a particle stream onto a particle bed using a 2D slot model. The numerical simulation is performed by means of the discrete element method (DEM). The results show that the DEM simulation can reproduce the experimental results well under comparative conditions. The dynamics in the formation of a crater is then analyzed in terms of velocity field, force structure, bottom stress distribution and energy exchange based on the DEM results. It is shown that as a result of impact by the falling particles, the particles in the top central region of the particle bed have relatively large velocities and contact forces. The velocities and forces propagate into the bed, and reach the bottom of the base layer quickly. They then continue to propagate leftwards and rightwards to create a crater. During the impact process, most of the energy from the falling particles is dissipated due to the inelastic collision and frictional contacts between particles, and only a small amount of the energy contributes to the formation of the crater. The crater size is shown to be affected by the discharging rate, discharging height and materials properties, and be related to the ratio of the input energy from the falling stream to the inertial energy from the original packing.
Starting Page	7
Ending Page	17
Page Count	11
File Format	PDF
ISSN	14345021
Journal	Granular Matter
Volume Number	9
Issue Number	1-2
e-ISSN	14347636
Language	English
Publisher	Springer-Verlag
Publisher Date	2006-06-14
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Granular matter Impact crater Discrete element method Velocity field Force structure Energy Engineering Thermodynamics, Transport Phenomena Industrial Chemistry/Chemical Engineering Structural Foundations, Hydraulic Engineering Engineering Fluid Dynamics Granular Media
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Mechanics of Materials Materials Science

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

Physical processes within a 2D granular layer during an impact

Particle screening phenomena in an oblique multi-level tumbling reservoir: a numerical study using discrete element simulation

The importance of modelling ballast particle shape in the discrete element method

Granular temperature in a gas fluidized bed

Future continuum models for granular materials in penetration analyses

Influence of particle shape on sheared dense granular media

Talking about granular matter

Classical and non-classical kinematic fields of two-dimensional penetration tests on granular ground by discrete element method analyses

NMR measurements of grain and gas motion in a gas-fluidized granular bed

Numerical Investigation of Crater Phenomena in a Particle Stream Impact onto a Granular Bed

Similar Documents

Physical processes within a 2D granular layer during an impact

Particle screening phenomena in an oblique multi-level tumbling reservoir: a numerical study using discrete element simulation

The importance of modelling ballast particle shape in the discrete element method

Granular temperature in a gas fluidized bed

Future continuum models for granular materials in penetration analyses

Influence of particle shape on sheared dense granular media

Talking about granular matter

Classical and non-classical kinematic fields of two-dimensional penetration tests on granular ground by discrete element method analyses

NMR measurements of grain and gas motion in a gas-fluidized granular bed

Numerical Investigation of Crater Phenomena in a Particle Stream Impact onto a Granular Bed