Experimental study of the tracer in the granular flow in a 2D silo

1998 ◽  
Vol 249 (1-2) ◽  
pp. 63-68 ◽  
Author(s):  
A. Medina ◽  
J. Andrade ◽  
C. Treviño
Keyword(s):  
Experimental Study ◽  
Granular Flow

Experimental study of a creeping granular flow at very low velocity

2008 ◽  
Vol 2008 (03) ◽  
pp. P03009 ◽  
Author(s):  
Jérôme Crassous ◽  
Jean-François Metayer ◽  
Patrick Richard ◽  
Claude Laroche
Keyword(s):  
Experimental Study ◽  
Granular Flow ◽  
Low Velocity

SCALING PROPERTY OF THE DILUTE-DENSE TRANSITION IN 2D GRANULAR FLOWS

2004 ◽  
Vol 18 (17n19) ◽  
pp. 2441-2447 ◽  
Author(s):  
MEIYING HOU ◽  
WEI CHEN ◽  
TONG ZHANG ◽  
KUNQUAN LU ◽  
C. K. CHAN
Keyword(s):  
Experimental Study ◽  
Granular Flow ◽  
Granular Flows ◽  
Critical Value ◽  
Inflow Rate ◽  
Critical Rate ◽  
Jamming Transition ◽  
Variable Λ ◽  
Outflow Rate ◽  
Dense Flow

In this paper we report our experimental study of dilute-dense transition in a 2-dimensional granular flow of particle size d0 and channel width D with confined exit of width d. It is found that a maximum inflow rate Qc exists, above which the outflow changes from dilute to dense and the outflow rate Q(t) drops abruptly from Qc to a dense flow rate Qd. The re-scaled critical rate qc(≡Qc/(D/d0)) is found to be a function of a scaling variable λ only, i.e. qc~F(λ), and [Formula: see text]. The form of this new variable λ suggests that the dilute-to-dense transition is a global property of the flow; unlike the jamming transition, which depends only on [Formula: see text]. It is also found that this transition occurs when the area fraction of particles near the exit reaches a critical value 0.65±0.03.

Experimental study of granular flow transition near the outlet in a flat-bottomed silo

2021 ◽  
Vol 202 ◽  
pp. 16-27
Author(s):  
Yawen Xiao ◽  
Yanlong Han ◽  
Fuguo Jia ◽  
Hanru Liu ◽  
Gengrun Li ◽  
...  
Keyword(s):  
Experimental Study ◽  
Granular Flow ◽  
Flow Transition

Experimental study of a granular flow in a vertical pipe: A spatiotemporal analysis

1999 ◽  
Vol 59 (1) ◽  
pp. 778-786 ◽  
Author(s):  
Jean-Luc Aider ◽  
Nathalie Sommier ◽  
Tareck Raafat ◽  
Jean-Pierre Hulin
Keyword(s):  
Experimental Study ◽  
Granular Flow ◽  
Spatiotemporal Analysis ◽  
Vertical Pipe

EXPERIMENTAL STUDY OF BIDIMENSIONAL MODELS OF SAND

1993 ◽  
Vol 07 (09n10) ◽  
pp. 1789-1798 ◽  
Author(s):  
J. RAJCHENBACH ◽  
E. CLÉMENT ◽  
J. DURAN
Keyword(s):  
Experimental Study ◽  
Granular Flow ◽  
Vertical Vibration ◽  
Velocity Fields ◽  
Restitution Coefficient ◽  
Fundamental Properties ◽  
Solid Friction ◽  
The Mean ◽  
Processing Device ◽  
Shed Light

Experimental investigation on simple model media may shed light on fundamental properties related to the dynamics of dry sand. In our experiments, we use assemblies of monodisperse metallic beads confined in various bidimensional containers. We study the response of these models to a shearing effect in a rotated cylinder and to a vertical vibration. We establish the relevance, on the phenomenology, of microscopic parameters like solid friction and elastic restitution coefficient on collision. We also put emphasise on the influence of the container boundaries. By the mean of an image processing device, we access, in some cases, to the density and to the velocity fields, which allows us to provide a statistical description of a granular flow.

Experimental study of monodisperse granular flow through an inclined rotating chute

2013 ◽  
Vol 246 ◽  
pp. 235-246 ◽  
Author(s):  
S.S. Shirsath ◽  
J.T. Padding ◽  
N.G. Deen ◽  
H.J.H. Clercx ◽  
J.A.M. Kuipers
Keyword(s):  
Experimental Study ◽  
Granular Flow ◽  
Flow Through
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