The interaction of a rising bubble and a particle in oscillating fluid

2016 ◽  
Vol 807 ◽  
pp. 205-220 ◽  
Author(s):  
D. V. Lyubimov ◽  
L. S. Klimenko ◽  
T. P. Lyubimova ◽  
L. O. Filippov
Keyword(s):  
Fine Particle ◽  
Considerable Increase ◽  
Effective Cross Section ◽  
Interaction Force ◽  
Average Force ◽  
Flotation Process ◽  
Rising Bubble ◽  
Buoyancy Forces ◽  
Bubble Oscillations ◽  
Ultrasound Action

This article considers the interaction of a rising bubble and a sedimenting fine particle in an incompressible viscous liquid under vibrations (ultrasound). The particle is subject to Stokes, Basset and buoyancy forces, and average force due to the inhomogeneity of the pulsating field. It is shown that the main contribution to the average force is made by interference of the external field and the field caused by the monopole mode of bubble oscillations. The interaction force is the attraction of the particle to the bubble. It is found that even weak vibrations lead to considerable increase of the effective cross-section of particle capture by the bubble. The evaluation of the efficiency of the flotation process exposed to an ultrasound action is discussed.

The Status of Fine Grained Minerals Flotation and Facility

2013 ◽  
Vol 826 ◽  
pp. 144-147
Author(s):  
Lian Tao Yu ◽  
Shu Juan Dai ◽  
Tong Lin Zhao ◽  
Jia Hong Han ◽  
Meng Zhang
Keyword(s):  
Fine Particle ◽  
Particle Separation ◽  
Flotation Process ◽  
Fine Grained ◽  
Mineral Separation ◽  
The Status ◽  
Continuous Mining

Fine disseminated ore extent of growing with the continuous mining. Fine grained minerals have become an important part of the mineral separation and it gets a lot of people's attention. This paper expounds the status of fine particle flotation process and fine particle separation facility.

scholarly journals Haptic Identification of Surfaces as Fields of Force

2006 ◽  
Vol 95 (2) ◽  
pp. 1068-1077 ◽  
Author(s):  
Vikram S. Chib ◽  
James L. Patton ◽  
Kevin M. Lynch ◽  
Ferdinando A. Mussa-Ivaldi
Keyword(s):  
Mechanical Properties ◽  
Hand Movement ◽  
Sensory Information ◽  
Internal Representation ◽  
Interaction Force ◽  
Adaptive Responses ◽  
Object Boundary ◽  
Average Force ◽  
Interaction Forces ◽  
First Case

The ability to discriminate an object's shape and mechanical properties from touch is one of the most fundamental somatosensory functions. When exploring physical properties of an object, such as stiffness and curvature, humans probe the object's surface and obtain information from the many sensory receptors in their upper limbs. This sensory information is critical for the guidance of actions. We studied how humans acquire an internal representation of the shape and mechanical properties of surfaces and how this information affects the execution of trajectories over the surface. Experiments involved subjects executing trajectories while holding a planar manipulandum that renders planar virtual objects with variable shape and mechanical properties. Subjects were instructed to make reaching movements with the hand between points on the boundary of a curved virtual disk of varying stiffness and curvature. The results suggest two classifications of adaptive responses: force perturbations and object boundaries. In the first case, a rectilinear hand movement is enforced by opposing the interaction forces. In the second case, the trajectory conforms to the object boundary so as to reduce interaction forces. While this dichotomy is evident for very rigid and very soft objects, the likelihood of an object boundary classification depended, in a smooth and monotonic way, on the average force experienced during the initial movements. Furthermore, the observed response across a variety of stiffness values lead to a constant average interaction force after adaptation. This suggests that the nervous system may select from the two responses through a mechanism that attempts to establish a constant interaction force.

Fine Particle Mass Monitoring with Low-Cost Sensors: Corrections and Long-Term Performance Evaluation

2019 ◽  
Author(s):  
Carl Malings ◽  
Rebecca Tanzer ◽  
Aliaksei Hauryliuk ◽  
Provat K. Saha ◽  
Allen L. Robinson ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Fine Particle ◽  
Low Cost ◽  
Particle Mass ◽  
Long Term Performance ◽  
Term Performance

EFFECTS OF SPACE CHARGE ON THE "EFFECTIVE CROSS SECTION"

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-755-C7-756
Author(s):  
N. S. Kopeika ◽  
T. Karcher ◽  
C.S. Ih.
Keyword(s):  
Space Charge ◽  
Cross Section ◽  
Effective Cross Section

179. Characterization of Fine Particle Emissions in an Engine Plant

2006 ◽  
Author(s):  
W. Heitbrink ◽  
T. Peters ◽  
D. Evans ◽  
T. Slavin
Keyword(s):  
Fine Particle ◽  
Particle Emissions

Interaction Between Multiple Solid Objects and Bubbles

2010 ◽  
Author(s):  
Ryuichi Iwata ◽  
Takeo Kajishima ◽  
Shintaro Takeuchi
Keyword(s):  
Numerical Method ◽  
Volume Of Fluid ◽  
Solid Particles ◽  
Immersed Boundary ◽  
Particle Interactions ◽  
Volume Of Fluid Method ◽  
Rising Bubble ◽  
Solid Objects ◽  
Multiple Particles ◽  
Particle Laden Flows

In the present study, bubble-particle interactions in suspensions are investigated by a coupled immersed-boundary and volume-of-fluid method (IB-VOF method), which is proposed by the present authors. The validity of the numerical method is examined through simulations of a rising bubble in a liquid and a falling particle in a liquid. Dilute particle-laden flows and a gas-liquid-solid flow involving solid particles and bubbles of comparable sizes to one another (Db/Dp = 1) are simulated. Drag coefficients of particles in particle-laden flows are estimated and flow fields involving multiple particles and a bubble are demonstrated.

China’s Strategic Partnership with Kuwait: New Opportunities for the Belt and Road Initiative

2020 ◽  
Vol 7 (4) ◽  
pp. 501-519
Author(s):  
Mordechai Chaziza
Keyword(s):  
Considerable Increase ◽  
Strategic Partnership ◽  
Belt And Road Initiative ◽  
Investment Opportunities ◽  
Belt And Road ◽  
Chinese Trade ◽  
Economic Engagement ◽  
The Belt And Road ◽  
Successful Integration

In July 2018, the Kuwaiti Emir made a state visit of great significance to China, as both countries agreed to establish a strategic partnership creating new opportunities for Kuwait, which aspires to diversify its economy and seek investment opportunities. This study investigates various aspects behind the establishment of this partnership and examines the synergy between the Belt and Road Initiative (BRI) and the Kuwait Vision 2035 (KV2035) to understand the extent of economic engagement and relationship between the two nations. However, despite the considerable increase in Chinese trade and investments in Kuwait, some significant internal obstacles and external challenges remain to the successful integration of KV2035 with the BRI.

Contribution of road traffic to ambient fine particle concentrations (PM10) in Switzerland

2001 ◽  
Vol 27 (1/2/3/4) ◽  
pp. 56 ◽  
Author(s):  
Robert Gehrig ◽  
Christoph Hueglin ◽  
Wim Devos ◽  
Peter Hofer ◽  
Judith Kobler ◽  
...  
Keyword(s):  
Fine Particle ◽  
Road Traffic
Sign in / Sign up

Export Citation Format

Share Document