Results 11 to 20 of about 5,304 (193)

CFD modeling of slurry pipeline at different prandtl numbers

open access: yesJournal of Thermal Engineering, 2021
The present work shows the slurry flow characteristics of glass beads having density 2470 kg/m3 at different Prandtl number through a horizontal pipeline.
Om PARKASH   +2 more
doaj   +1 more source

Magnetic and velocity fields in a dynamo operating at extremely small Ekman and magnetic Prandtl numbers

open access: yesContributions to Geophysics and Geodesy, 2017
Numerical simulations of the geodynamo are becoming more realistic because of advances in computer technology. Here, the geodynamo model is investigated numerically at the extremely low Ekman and magnetic Prandtl numbers using the PARODY dynamo code ...
Ján ŠIMKANIN, Juraj KYSELICA
doaj   +1 more source

Numerical Analysis of Linear Traveling Wave in Rotating Rayleigh–Bénard Convection with an Adiabatic Sidewall

open access: yesFluids, 2023
In rotating Rayleigh–Bénard problems, convection with traveling waves may occur near the sidewalls. The Rayleigh number, Taylor number and Prandtl number are involved in this phenomenon, and the convection mode is determined depending on their values. We
Toshio Tagawa
doaj   +1 more source

Method of calculation of turbulent Prandtl number for the SST turbulence model

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2019
We present a new model for turbulent Prandtl number that provides an improvement of prediction capabilities of the SST turbulence model in application to wall heat transfer problems. The model developed gives an explicit expression for the local value of
Zaitsev Dmitri, Smirnov Evgeny
doaj   +1 more source

Simulation of Induction at Low Magnetic Prandtl Number [PDF]

open access: yesPhysical Review Letters, 2004
We consider the induction of magnetic field in flows of electrically conducting fluid at low magnetic Prandtl number and large kinetic Reynolds number. Using the separation between the magnetic and kinetic diffusive lengthscales, we propose a new numerical approach.
Ponty, Yannick   +2 more
openaire   +4 more sources

Prandtl number effect on near wall temperature profile in high-Reynolds number channel flows

open access: yesNihon Kikai Gakkai ronbunshu, 2014
Prandtl number (Pr) effects on characteristics of the thermal boundary layer were investigated by means of Direct Numerical Simulations (DNS) in high-Reynolds number turbulent channel flows. The molecular Pr conditions were changed from 0.71 to 25.0, and
Shogo SARUWATARI, Yoshinobu YAMAMOTO
doaj   +1 more source

Bifurcation and chaos in zero-Prandtl-number convection [PDF]

open access: yesEPL (Europhysics Letters), 2009
We present the detailed bifurcation structure and associated flow patterns near the onset of zero Prandtl number Rayleigh Bénard convection. We employ both direct numerical simulation and a low-dimensional model ensuring qualitative agreement between the two.
P. Pal   +5 more
openaire   +2 more sources

Numerical investigation of steady state, laminar, natural convection of Bingham fluids in a trapezoidal enclosure heated from the bottom and cooled from the sides

open access: yesInternational Journal of Thermofluids, 2023
Laminar, steady-state, natural convection of Bingham fluids in trapezoidal enclosures with a heated bottom wall, cooled inclined sidewalls and an adiabatic top wall has been studied based on numerical simulations for a range of values of nominal Bingham ...
S. Malkeson   +2 more
doaj   +1 more source

Examination of warm transfer on extending sheet by variation iteration method strategy and investigation of arrangements for optimizing liquid properties

open access: yesEngineering Reports, 2022
This study aimed at investigating the variation of heat transfer and velocity changes of the fluid flow along the vertical line on a surface drawn from both sides.
Pooya Pasha   +3 more
doaj   +1 more source

A description of the Lorenz attractor at high prandtl number [PDF]

open access: yesPhysica D: Nonlinear Phenomena, 1982
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fowler, A, McGuinness, M
openaire   +3 more sources

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