Results 21 to 30 of about 6,770,878 (333)

Nano- and Micro-Tribological Investigations of Boundary Layers on Axial Bearing Washers Tested under WEC Critical Conditions

open access: yesLubricants, 2022
The formation of boundary layers on bearing surfaces due to the operational conditions has a significant influence on bearing lifetimes and frictional properties.
Florian Pape
doaj   +1 more source

Higher-Order Blended Compact Difference Scheme on Nonuniform Grids for the 3D Steady Convection-Diffusion Equation

open access: yesAxioms, 2023
This paper proposes a higher-order blended compact difference (BCD) scheme on nonuniform grids for solving the three-dimensional (3D) convection–diffusion equation with variable coefficients.
Tingfu Ma, Bin Lan, Yongbin Ge, Lili Wu
doaj   +1 more source

Boundary-field-driven control of discontinuous phase transitions on hyperbolic lattices [PDF]

open access: yes, 2016
The multistate Potts models on two-dimensional hyperbolic lattices are studied with respect to various boundary effects. The free energy is numerically calculated by Corner Transfer Matrix Renormalization Group method. We analyze phase transitions of the
Gendiar, Andrej   +2 more
core   +3 more sources

On determining characteristic length scales in pressure gradient turbulent boundary layers

open access: yes, 2016
In the present work we analyze three methods used to determine the edge of pressure gradient turbulent boundary layers: two based on composite profiles, the one by Chauhan et al. (Fluid Dyn. Res. 41:021401, 2009) and the one by Nickels (J.
R. Vinuesa, R. Örlü, P. Schlatter
semanticscholar   +1 more source

A ‘receptive’ boundary layer [PDF]

open access: yesJournal of Fluid Mechanics, 2010
Receptivity is the process which describes how environmental disturbances (such as gusts, acoustic waves or wall roughness) are filtered by a boundary layer and turned into downstream-growing waves. It is closely related to the identification of initial conditions for the disturbances and requires knowledge of the characteristics of the specific ...
openaire   +2 more sources

Influence of higher order effects on the vortex instability of thermal boundary layer flow in a wedge shaped domain [PDF]

open access: yes, 2005
We reconsider the onset of streamwise vortices in the thermal boundary layer flow induced by an inclined upward-facing heated semi-infinite surface placed within a Newtonian fluid.
Paul, M.C., Rees, D.A.S., Wilson, M.
core   +1 more source

Steady-State Navier–Stokes Equations in Thin Tube Structure with the Bernoulli Pressure Inflow Boundary Conditions: Asymptotic Analysis

open access: yesMathematics, 2021
Steady-state Navier–Stokes equations in a thin tube structure with the Bernoulli pressure inflow–outflow boundary conditions and no-slip boundary conditions at the lateral boundary are considered. Applying the Leray–Schauder fixed point theorem, we prove
Rita Juodagalvytė   +2 more
doaj   +1 more source

Coupled vs. decoupled boundary layers in VOCALS-REx [PDF]

open access: yesAtmospheric Chemistry and Physics, 2011
We analyze the extent of subtropical stratocumulus-capped boundary layer decoupling and its relation to other boundary-layer characteristics and forcings using aircraft observations from VOCALS-REx along a swath of the subtropical southeast Pacific Ocean
C. R. Jones, C. S. Bretherton, D. Leon
doaj   +1 more source

Boundary layer analysis of nonlinear reaction-diffusion equations in a smooth domain

open access: yesAdvances in Nonlinear Analysis, 2017
In this article, we consider a singularly perturbed nonlinear reaction-diffusion equation whose solutions display thin boundary layers near the boundary of the domain.
Jung Chang-Yeol   +2 more
doaj   +1 more source

Analysis of axisymmetric boundary layers

open access: yes, 2018
Axisymmetric boundary layers are studied using integral analysis of the governing equations for axial flow over a circular cylinder. The analysis includes the effect of pressure gradient and focuses on the effect of transverse curvature on boundary layer
Kumar, Praveen, Mahesh, Krishnan
core   +1 more source

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