Results 21 to 30 of about 4,195,211 (256)

Particle Migration due to Viscoelasticity of the Suspending Liquid and Its Relevance in Microfluidic Devices

open access: yesAnnual Review of Fluid Mechanics, 2017
Pier Luca Maffettone   +2 more
exaly   +2 more sources

Experimental Study on the Permeability of Rare Earths with Different Particle Composition for a Novel Heap Leaching Technology

open access: yesApplied Sciences, 2022
In order to solve the problem of vegetation restoration in the traditional heap leaching of rare earths, a novel heap leaching technology is proposed. In the novel technology, leaching liquid is laterally injected into the rare earth pile from the side ...
Wei Ju   +5 more
doaj   +1 more source

The variable-mass seepage law of broken porous rock: an experimental study

open access: yesGeomatics, Natural Hazards & Risk, 2020
Induced by tunnel excavation, the particles constantly shift in broken porous rock of faults until failure occurs, which provides channels for water inrush. Therefore, it is essential to investigate the particle migration of broken porous rock.
Yingchao Wang   +4 more
doaj   +1 more source

Numerical Study of the Effects of Asymmetric Velocity Profiles in a Curvilinear Channel on Migration of Neutral Buoyant Particle

open access: yesFluids, 2023
The microstructure and suspended particle behavior should be considered when studying the flow properties exhibited by particle suspension. In addition, particle migration, also known as Segré–Silberberg effects, alters the microstructure of the ...
Ryo Naito, Tomohiro Fukui
doaj   +1 more source

The influence of the void fraction on the particle migration: A coupled computational fluid dynamics–discrete element method study about drag force correlations

open access: yesInternational journal for numerical and analytical methods in geomechanics (Print), 2020
Granular soils subjected to flow through their soil skeleton can show a behaviour in which fine particles migrate through the pore space between coarser particles. This process is called internal instability or suffusion. This contribution deals with the
M. Kanitz, J. Grabe
semanticscholar   +1 more source

Experimental study on the change law of internal erosion and seepage characteristics of inverse grading sand accumulation

open access: yes地质科技通报, 2023
Inverse grading deposits are commonly found in circulation and accumulation areas of high-speed and long-distance landslides. Due to its special structure of large particle size at the top and small at the bottom and strong permeability, the accumulation
Yixiang Song   +3 more
doaj   +1 more source

Particle migration in channel flow of an elastoviscoplastic fluid

open access: yesJournal of Non-Newtonian Fluid Mechanics, 2020
We study the dynamics of a neutrally buoyant rigid sphere carried by an elastoviscoplastic fluid in a pressure-driven channel flow numerically. The yielding to flow is marked by the yield stress which splits the flow into two main regions: the core ...
E. Chaparian   +3 more
semanticscholar   +1 more source

Influence of pulsating hydraulic parameters on migration law of deposited particles in fracture

open access: yesMeikuang Anquan, 2022
In order to improve the dredging effect of the blocked mining-induced fracture field by pulsating hydraulic scouring technology, the flow characteristics of pulsating water flow in fracture and the influence of pulsating hydraulic parameters on the ...
LIU Yingke   +3 more
doaj   +1 more source

Investigation of the Shear Mechanism at Sand-Concrete Interface under the Influence of the Concave Groove Angle of the Contact Surface

open access: yesBuildings
A “random-type” sand–concrete interface shear test was developed based on the sand cone method, with a focus on the most commonly encountered triangular contact surface morphology.
Zhigang Meng   +4 more
doaj   +1 more source

Contaminant Particle Motion in Lubricating Grease Flow: A Computational Fluid Dynamics Approach

open access: yesLubricants, 2018
In this paper, numerical simulations of particle migration in lubricating grease flow are presented. The rheology of three lithium greases with NLGI (National Lubricating Grease Institute) grades 00, 1 and 2 respectively are considered.
Lars-Göran Westerberg   +3 more
doaj   +1 more source

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