Results 31 to 40 of about 282,392 (296)

Effective velocity boundary condition at a mixed slip surface [PDF]

open access: yes, 2006
This paper studies the nature of the effective velocity boundary conditions for liquid flow over a plane boundary on which small free-slip islands are randomly distributed.
A. PROSPERETTI   +8 more
core   +3 more sources

Effect of boundary slips on thermal EHL in simple sliding finite line contact considering limiting shearing stress

open access: yesFriction
With the advancement of surface technology, boundary slip in lubrication has become increasingly common. However, theoretical analysis in this area remains limited, necessitating further research to explore the impact of boundary slip, particularly ...
Mingyu Zhang, Jing Wang, C. H. Venner
doaj   +1 more source

Boundary Control Problem for Heat Convection Equations with Slip Boundary Condition [PDF]

open access: yesMathematical Problems in Engineering, 2018
We analyze an optimal boundary control problem for heat convection equations in a three-dimensional domain, with mixed boundary conditions. We prove the existence of optimal solutions, by considering boundary controls for the velocity vector and the temperature.
Exequiel Mallea-Zepeda   +2 more
openaire   +2 more sources

Effective slip boundary conditions for flows over nanoscale chemical heterogeneities

open access: yes, 2007
We study slip boundary conditions for simple fluids at surfaces with nanoscale chemical heterogeneities. Using a perturbative approach, we examine the flow of a Newtonian fluid far from a surface described by a heterogeneous Navier slip boundary ...
C. Cottin-Bizonne   +5 more
core   +1 more source

Boundary condition and geometry engineering in electronic hydrodynamics

open access: yes, 2019
We analyze the role of boundary geometry in viscous electronic hydrodynamics. We address the twin questions of how boundary geometry impacts flow profiles, and how one can engineer boundary conditions -- in particular the effective slip parameter -- to ...
Moessner, Roderich   +3 more
core   +1 more source

Strong Well-Posedness for a Class of Dynamic Outflow Boundary Conditions for Incompressible Newtonian Flows [PDF]

open access: yes, 2016
Based on energy considerations, we derive a class of dynamic outflow boundary conditions for the incompressible Navier-Stokes equations, containing the well-known convective boundary condition but incorporating also the stress at the outlet.
Bothe, Dieter   +2 more
core   +1 more source

Establishment of a Standard Method for Boundary Slip Measurement on Smooth Surfaces Based on AFM

open access: yesApplied Sciences, 2019
Typically, it is difficult to analyze and design a micro/nanofluid system, and the design process cannot follow the traditional law of hydrodynamics. The boundary condition is very important in the applications of a micro/nanofluid system.
Lei Chen, Xuezeng Zhao, Yunlu Pan
doaj   +1 more source

The thermal –fluid investigation of effects of different wall boundary conditions on platinum catalytic micro-channel combined with a thermoelectric system

open access: yesAlexandria Engineering Journal, 2021
In this work, the effects of different regimes of boundary conditions such as convective heat transfer coefficient, insulated wall jointed by slip flow, thermal jump and slip-jump cases are investigated.
Sayyed Aboozar Fanaee   +1 more
doaj   +1 more source

A variational approach to the moving contact line hydrodynamics

open access: yes, 2006
In immiscible two-phase flows, contact line denotes the intersection of the fluid-fluid interface with the solid wall. When one fluid displaces the other, the contact line moves along the wall.
Qian, Tiezheng   +2 more
core   +1 more source

Asymptotic Theory of Rayleigh Problem in Rarefied Gas [PDF]

open access: yes, 1979
The asymptotic theory of Rayleigh shear flow for large values of time is developed on the basis of the linearized Boltzmann-Krook equation. Asymptotic equations for mean velocity outside the Knudsen layer are obtained by employing the Hilbert expansion ...
Yamamoto, Kyoji
core   +1 more source

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