Results 211 to 220 of about 67,930 (246)

Prandtl-number dependence of turbulent flame propagation

Physical Review E, 2001
Inertial-range cascade phenomenology is used to predict Prandtl-number (Pr) dependencies of turbulent flame properties. A unified picture of turbulent flame structure and burning velocity is developed that encompasses all Pr regimes. Implications of the analysis for gaseous flames (Pr near unity), autocatalytic fronts in liquids (high Pr), and ...
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Free-convection layers at large prandtl number

Zeitschrift für angewandte Mathematik und Physik ZAMP, 1971
The behavior of laminar free-convection boundary layers at large Prandtl number is considered. Plane and axisymmetric flows are treated simultaneously in terms of a unified formulation. Flow and heat-transfer quantities are expressed in terms of expansions within an inner and an outer layer, both of which lie inside the Prandtl's viscous layer.
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Magnetic Prandtl Number and Astrophysical Convection

Publications of the Astronomical Society of Australia, 1981
In the astrophysical context, where the effects of a magnetic field on stellar convective processes have to be taken into account, we have ϰ > > η > > ν (Weiss 1977) where ϰ, η and ν are respectively the thermal, magnetic and viscous diffusivities.
J. O. Murphy, J. M. Lopez
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Turbulent Thermal Convection at Arbitrary Prandtl Number

The Physics of Fluids, 1962
The mixing-length theory of turbulent thermal convection in a gravitationally unstable fluid is extended to yield the dependence of Nusselt number H/H0 on both Prandtl number σ and Rayleigh number Ra. The analysis assumes a layer of Boussinesq fluid contained between infinite, horizontal, perfectly conducting, rigid plates.
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Infinite Prandtl number spherical-shell convection

1988
This work presents an overview of numerical simulations of thermal convection for constant viscosity, infinite Prandtl number fluids in a spherical shell, with mantle convection being the main application. Using high-resolution grids on a supercomputer Cray-2, we have monitored the transitions from steady state to the onset of oscillatory time ...
Philippe Machetel, David A. Yuen
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Turbulent Prandtl Number—Where Are We?

Journal of Heat Transfer, 1994
The objective of this paper is to examine critically the presently available experimental data on Turbulent Prandtl Number for the two-dimensional turbulent boundry layer, and for fully developed flow in a circular tube or a flat duct, and attempt to draw some conclusions as to where matters presently stand.
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Inertial convection at low Prandtl number

Journal of Fluid Mechanics, 1977
The problem of Rayleigh-Bénard convection at low Prandtl number σ is investigated in a circular geometry. Jones, Moore & Weiss (1976) have formulated, but not solved analytically, an asymptotic nonlinear problem in the limit σ → 0 at small velocities. It is shown that the problem they posed can be solved exactly in this geometry.
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Prandtl Number

2010
H. S. Ramaswamy, G. B. Awuah, C. R. Chen
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Prandtl Number

1967
Y. S. Touloukian, J. K. Gerritsen, N. Y. Moore   +2 more
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Prandtl number, n.

2023
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