Results 21 to 30 of about 359,267 (337)

Atmospheric Ekman Flows with Variable Eddy Viscosity [PDF]

open access: yesBoundary-Layer Meteorology, 2018
We revisit the classical problem of the behaviour of the wind in the steady atmospheric Ekman layer. We show, for general variable eddy viscosities, that in the Northern Hemisphere the time-averaged ageostrophic wind profile always decays in magnitude and turns clockwise with increasing height.
A. Constantin, R. S. Johnson
openaire   +4 more sources

On variable viscosity and enhanced dissipation

open access: yesNonlinearity, 2023
Abstract In this article we consider the two-dimensional Navier–Stokes equations with variable viscosity depending on the vertical position. As our main result we establish linear enhanced dissipation near the non-affine stationary states replacing Couette flow. For instance, these shear flows may grow exponentially.
Xian Liao, Christian Zillinger
openaire   +4 more sources

Taguchi Method and Numerical Simulation for Variable Viscosity and Non-Linear Boussinesq Effects on Natural Convection over a Vertical Truncated Cone in Porous Media

open access: yesEnergies, 2020
This study uses an optimization approach representation and numerical solution for the variable viscosity and non-linear Boussinesq effects on the free convection over a vertical truncated cone in porous media.
Ken Ming Tu   +3 more
doaj   +1 more source

Heat and mass transfer of Williamson nanofluid flow yield by an inclined Lorentz force over a nonlinear stretching sheet

open access: yesResults in Physics, 2018
The present analysis is devoted to explore the computational solution of the problem addressing the variable viscosity and inclined Lorentz force effects on Williamson nanofluid over a stretching sheet.
Mair Khan   +3 more
doaj   +1 more source

Incorporating variable viscosity in vorticity-based formulations for Brinkman equations [PDF]

open access: yes, 2019
In this brief note, we introduce a non-symmetric mixed finite element formulation for Brinkman equations written in terms of velocity, vorticity and pressure with non-constant viscosity.
Anaya, Verónica   +3 more
core   +3 more sources

3-D Convection With Variable Viscosity [PDF]

open access: yesGeophysical Journal International, 1991
Accepted 1990 September 6. Received 1990 July 16; in original form 1990 May 3 SUMMARY report numerical calculations for 3-D convection with variable viscosity. A hybrid spectral and finite difference method is used. The coupling of modes in the equation of motion, which is caused by lateral viscosity variations, is treated iteratively.
Christensen, Ulrich R., Harder, H.
openaire   +2 more sources

Numerical Solution of the Time-Dependent Navier–Stokes Equation for Variable Density–Variable Viscosity. Part I

open access: yesMathematical Modelling and Analysis, 2015
We consider methods for the numerical simulations of variable density incompressible fluids, modelled by the Navier–Stokes equations. Variable density problems arise, for instance, in interfaces between fluids of different densities in multiphase flows ...
Owe Axelsson, Xin He, Maya Neytcheva
doaj   +1 more source

Effect of lubricant compressibility and variable viscosity on the performance of three-lobe journal bearing [PDF]

open access: yesArchive of Mechanical Engineering, 2022
Different configurations of journal bearings have been extensively used in turbomachinery and power generating equipment. Three-lobe bearing is used due to its lower film temperature and stable operation.
Mushrek A. Mahdi, Basim Ajeel Abbas
doaj   +1 more source

Cooperative Shear Model for the Rheology of Glass-Forming Metallic Liquids [PDF]

open access: yes, 2006
A rheological law based on the concept of cooperatively sheared flow zones is presented, in which the effective thermodynamic state variable controlling flow is identified to be the isoconfigurational shear modulus of the liquid.
Demetriou, Marios D.   +5 more
core   +2 more sources

Electroosmosis-Optimized Thermal Model for Peristaltic Transportation of Thermally Radiative Magnetized Liquid with Nonlinear Convection

open access: yesEntropy, 2022
The present study addresses the heat transfer efficiency and entropy production of electrically conducting kerosene-based liquid led by the combined impact of electroosmosis and peristalsis mechanisms. Effects of nonlinear mixed convection heat transfer,
Yasir Akbar, Hammad Alotaibi
doaj   +1 more source

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