Results 271 to 280 of about 2,237,184 (349)

Local slip velocity in a downer

China Particuology, 2003
Abstract Based on the EMMS model, the local slip velocity between gas and solid is systematically analyzed and a theoretical correlation of local slip velocity with local voidage for a downer is derived as follows: u s ( r ) u t = D 8 / 7 ( 1 - ɛ mf ) - 2 / 7 [ 1 - ɛ ( r ) ɛ (
Songgeng Li, Weigang Lin, Jianzhong Yao
openaire   +1 more source

Fully developed entropy optimized second order velocity slip MHD nanofluid flow with activation energy

Comput. Methods Programs Biomed., 2020
Hydromagnetic second order velocity slip flow of viscous material with nonlinear mixed convection towards a stretched rotating disk is numerically examined here.
S. Z. Abbas, Muhammad Ijaz Khan, S. Kadry, W. Khan, M. Israr-ur-Rehman, M. Waqas   +5 more
semanticscholar   +1 more source

Velocity inversion and predicting velocity slip on curved surfaces

AIP Conference Proceedings, 2012
Couette flow between two concentric rotating cylinders is a classical fluid dynamics problem that is discussed in many textbooks. However, under certain conditions, the flow between the cylinders can exhibit a highly non-intuitive behavior. For example, when the inner cylinder is rotating and the outer cylinder is stationary, it is possible to obtain ...
Ali Dinler, Robert W. Barber, David R. Emerson, Stefan K. Stefanov   +3 more
openaire   +1 more source

Slip velocity during wetting of solids

Journal of Colloid and Interface Science, 1977
Abstract A slip velocity at the contact line of a liquid drop on a solid surface originates because of the force induced by the gradient of the chemical potential in the liquid along the solid-liquid interface. Einstein's equation is used to relate the slip velocity and the force.
E Ruckenstein, C.S Dunn
openaire   +1 more source

Develop the lattice Boltzmann method to simulate the slip velocity and temperature domain of buoyancy forces of FMWCNT nanoparticles in water through a micro flow imposed to the specified heat flux

Physica A: Statistical Mechanics and its Applications, 2018
Lattice Boltzmann method ability is improved to simulate the mixed convection of Water / FMWCNT nanofluid inside a two dimensional microchannel. The influences of gravity on hydrodynamic and thermal domains are studied while the microchannel walls are ...
A. Karimipour, A. D'Orazio, M. Goodarzi
semanticscholar   +1 more source

Velocity Slip Coefficient and the Diffusion Slip Velocity for a Multicomponent Gas Mixture

The Physics of Fluids, 1971
Simple and accurate expressions for the velocity slip coefficient and the diffusion slip velocity are obtained by applying a variational technique to the linearized Boltzmann equation for a multicomponent gas mixture.
openaire   +2 more sources

Slip velocities in agitated vessel crystallisers

Journal of Crystal Growth, 1972
Abstract Growth rates of ammonium alum crystals have been measured at different fluid velocities in a single crystal growth cell and a fluidised bed, and at different stirrer speeds in a turbine agitated vessel. To compare the latter with the former, it is necessary to know the particle-fluid slip velocity as a function of the impeller speed, and the
A.W. Nienow, P.D.B. Bujac, J.W. Mullin
openaire   +1 more source

Nonlinear Smoluchowski slip velocity and micro-vortex generation

Journal of Fluid Mechanics, 2002
When an electric field is applied across a conducting and ion-selective porous granule in an electrolyte solution, a polarized surface layer with excess counter-ions is created. The depth of this layer and the overpotential V across this layer are functions of the normal electric field j on the granule surface.
Ben, Y., Chang, H.-C.
openaire   +2 more sources

Three-Dimensional Hybrid Nanofluid Flow and Heat Transfer past a Permeable Stretching/Shrinking Sheet with Velocity Slip and Convective Condition

, 2020
The present work deals with the three-dimensional hybrid Cu-Al2O3/water nanofluid flow towards a stretching/shrinking sheet with the presence of velocity slip and convective conditions.
N. Khashi’ie, N. Arifin, I. Pop, R. Nazar, E. Hafidzuddin, N. Wahi   +5 more
semanticscholar   +1 more source

Slip velocity and velocity inversion in a cylindrical Couette flow

Physical Review E, 2009
Velocity inversion in a nanoscale cylindrical Couette flow is investigated with the Navier-Stokes (NS) equation and molecular-dynamics (MD) simulation. With general slip boundary conditions in the NS equation, the flow can be classified into five distinct profiles. The condition of velocity inversion is explored in the whole space of four dimensionless
openaire   +2 more sources