Results 191 to 200 of about 1,260,868 (229)

Thermal attractor in chaotic convection with high-Prandtl-number fluids

Physical Review A, 1988
The onset of chaotic convection in large-Prandtl-number fluids has been found to occur in the form of elongated cells with aperiodic boundary-layer instabilities. The dynamics of this phenomenon has been monitored in the physical domain, and also in the spectral and phase spaces.
, Vincent, , Yuen
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Further Results on the Heat Transfer to Low-Prandtl-Number Fluids in Pipes

Numerical Heat Transfer, Part B: Fundamentals, 1982
Abstract Numerical predictions have been made of heat transfer to low-Prandtl-number fluids in pipes with constant wall heat flux. The turbulence model employed is of the two-equation (k-)c kind in the core and the one-equation (k) kind in the near-wall region.
El Hadidy, M, GORI, FABIO, Spalding, D.
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Prandtl-Essentials of Fluid Mechanics

2010
Introduction.- Properties of Liquids and Gases.- Kinematics of Liquids and Gases.- Dynamics of Liquids and Gases.- Fundamental Equations of Fluid Mechanics.- Aerodynamics.- Turbulent Flows.- Fluid Mechanical Instabilities.- Convective Heat and Mass Transport.- Multi-Phase Flows.- Flows with Chemical Reactions.- Flows in the Atmosphere and in the Ocean.-
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The „NEW“ Mechanics of Fluids of Ludwig Prandtl

2000
The title of this short note comes from a survey lecture delivered at an AGARE) Conference on Flow Separation by Schlichting 1975 in Gottingen, organized for the hundredth anniversary of Prandtl’s birth. Among a number of reasons he alluded for accepting to prepare the lecture on an „account of the scientific life of Ludwig Prandtl“ the most motivating
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Instabilities of convection rolls in a high Prandtl number fluid

Journal of Fluid Mechanics, 1971
An experiment on the stability of convection rolls with varying wave-number is described in extension of the earlier work by Chen & Whitehead (1968). The results agree with the theoretical predictions by Busse (1967a) and show two distinct types of instability in the form of non-oscillatory disturbances.
F. H. Busse, J. A. Whitehead
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Numerical Simulation of Oscillatory Convection in Low Prandtl Fluids

1990
Our contribution to the GAMM WORKSHOP is limited to the case A: Rigid-Rigid shallow rectangular cavity (of aspect ratio A=4) filled with low-Prandtl-number fluid (Pr=0) and submitted to a horizontal temperature gradient. Additionnal computations were carried out in order to determine the Grashof number value corresponding to the onset of instabilities (
S. Garrec, J. P. Magnaud
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Internal waves in a fluid of finite Prandtl number

Geophysical Fluid Dynamics, 1970
Abstract It is shown, through calculation and physical arguments, that in a smoothly stratified fluid thermal diffusion plays a damping role comparable to that of viscosity only in the interior of the fluid, and not in the boundary layers.
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Prandtl boundary layers for the Phan-Thien Tanner and Giesekus fluid

Zeitschrift für angewandte Mathematik und Physik, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Numerical Simulation of Oscillatory Convection in a Low Prandtl Fluid

1990
A two-dimensional incompressible fluid analysis was carried out for Case A and Case C of the benchmark problems with using the finite difference method. This paper presents our solution method, calculated results and additional discussions concerning boundary treatment, time increment and allowable mass residual for the continuity equation.
I. Maekawa, Y. Doi
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Natural convection of a high Prandtl number fluid in a cavity

International Communications in Heat and Mass Transfer, 2000
Transient natural convection in a square cavity heated with a time-dependent heat flux on one vertical wall and cooled by maintaining the opposite wall at a constant temperature was studied experimentally and numerically. The working fluid was silicon oil (Dow Corning fluid 20–200) with a Prandtl number of 230.
Federico T. Poujol, Jorge Rojas, Eduardo Ramos   +2 more
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