scholarly journals Flow and motion behavior of particle suspensions in shear flow over a rough surface

2013 ◽  
Author(s):  
V. Mikulich ◽  
C. Brücker
Keyword(s):  
Shear Flow ◽  
Rough Surface ◽  
Particle Suspensions ◽  
Motion Behavior

Computational Studies of Droplet Motion Near a Rough Surface via 3D Spectral Boundary Elements

2019 ◽  
Author(s):  
Yechun Wang ◽  
Xinnan Wang
Keyword(s):  
Shear Flow ◽  
Rough Surface ◽  
Theoretical Foundation ◽  
Liquid Droplet ◽  
Droplet Motion ◽  
Force Microscopy ◽  
Atomic Force ◽  
Sinusoidal Functions ◽  
Parabolic Flow ◽  
And Migration

Abstract A plethora of studies have investigated the motion of a liquid droplet in the vicinity of a smooth surface, incurred by shear flow, parabolic flow or gravity. However, there are few studies that consider the roughness of the surface that could affect the droplet motion. In this study, we employ a 3D spectral boundary element method for interfacial dynamics to examine the droplet translation, migration, and deformation in the vicinity of a rough surface due to shear flow. The roughness feature of the surface is comparable to the size of the droplet and is simulated with sinusoidal functions. Topologies of epoxy coating surfaces are also considered in the computations. The roughness and profile of the coating surface is obtained by atomic force microscopy. The computational results show that the surface roughness affects significantly the behavior of a deformable droplet near the surface, including its deformation and migration speed. In return, the dynamics of the droplet also influences the stress distribution on the rough surface. The results of this study could provide theoretical foundation in the prediction of particle induced erosion corrosion of organic coatings.

Numerical simulations of oscillatory shear flow of particle suspensions at finite inertia

2019 ◽  
Vol 58 (11-12) ◽  
pp. 741-753
Author(s):  
Massimiliano M. Villone ◽  
Marco E. Rosti ◽  
Outi Tammisola ◽  
Luca Brandt
Keyword(s):  
Shear Flow ◽  
Numerical Simulations ◽  
Oscillatory Shear ◽  
Particle Suspensions ◽  
Oscillatory Shear Flow

Mesoscale hydrodynamics simulations of particle suspensions under shear flow: From hard to ultrasoft colloids

2013 ◽  
Vol 222 (11) ◽  
pp. 2773-2786 ◽  
Author(s):  
R. G. Winkler ◽  
S. P. Singh ◽  
C. -C. Huang ◽  
D. A. Fedosov ◽  
K. Mussawisade ◽  
...  
Keyword(s):  
Shear Flow ◽  
Particle Suspensions

Lattice-Boltzmann Simulation of Particle Suspensions in Shear Flow

2005 ◽  
Vol 121 (1-2) ◽  
pp. 149-161 ◽  
Author(s):  
J. Hyväluoma ◽  
P. Raiskinmäki ◽  
A. Koponen ◽  
M. Kataja ◽  
J. Timonen
Keyword(s):  
Shear Flow ◽  
Lattice Boltzmann ◽  
Particle Suspensions ◽  
Lattice Boltzmann Simulation

Theory of the kinetic coefficients of the atomically rough surface of 4He crystals

1983 ◽  
Vol 44 (6) ◽  
pp. 723-736 ◽  
Author(s):  
R.M. Bowley ◽  
D.O. Edwards
Keyword(s):  
Rough Surface ◽  
Kinetic Coefficients
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