Results 11 to 20 of about 13,706 (233)

Prandtl Number Effects on Mixed Convection Between Rotating Coaxial Disks

open access: yesInternational Journal of Rotating Machinery, 1996
Prandtl number characterizes the competition of viscous and thermal diffusion effects and, therefore, is an influential factor in thermal-fluid flows. In the present study, the Prandtl number effects on non-isothermal flow and heat transfer between two ...
Chyi-Yeou Soong
doaj   +2 more sources

On the Magnetic Prandtl Number Behavior of Accretion Disks [PDF]

open access: yesThe Astrophysical Journal, 2008
15 pages, 6 figures. Accepted for publication in the Astrophysical Journal (February 10, 2008 issue.) Minor changes from original ...
Balbus, Steven A., Henri, Pierre
openaire   +6 more sources

New Nusselt Number Correlation and Turbulent Prandtl Number Model for Turbulent Convection with Liquid Metal Based on Quasi-DNS Results

open access: yesEnergies
Liquid metal is widely used as the primary coolant in many advanced nuclear energy systems. Prandtl number of liquid metal is much lower than that of the conventional coolant of water or gas. Based on the Reynolds analogy, the turbulent Prandtl number is
Hao Fu   +6 more
doaj   +2 more sources

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

Prandtl-number dependence of convection-driven dynamos in rotating spherical fluid shells [PDF]

open access: yes, 2005
The value of the Prandtl number P exerts a strong influence on convection-driven dynamos in rotating spherical shells filled with electrically conducting fluids.
Simitev, R., Busse, F.H.
core   +1 more source

Two-dimensional magnetohydrodynamic turbulence in the limits of infinite and vanishing magnetic Prandtl number [PDF]

open access: yes, 2013
LAKB was supported by an EPSRC post-graduate studentship.We study both theoretically and numerically two-dimensional magnetohydrodynamic turbulence at infinite and zero magnetic Prandtl number $Pm$ (and the limits thereof), with an emphasis on solution ...
Tran, Chuong Van   +2 more
core   +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

Hydrothermal Instability Of Thermocapillary Convection In Large-Prandtl-Number Liquid Bridges Under Microgravity [PDF]

open access: yes, 2008
Linear stability analysis was performed to study the mechanism of transition of thermocapillary convection in liquid bridges with liquid volume ratios ranging from 0.4 to 1.2, aspect ratio of 0.75 and Prandtl number of 100.
Chen, QS (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, 15 Bei Si Huan Xi Rd, Beijing 100080, Peoples R China.   +2 more
core   +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

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