Results 251 to 260 of about 1,777,858 (291)

Approximating the heterogeneous fluid queue with a birth-death fluid queue

IEEE Transactions on Communications, 1995
Recent research has shown that fluid-flow queueing models accurately determine the burst level component of the ATM multiplexer process, and fluid models therefore constitute an efficient tool for the investigation of admission control in ATM networks.
Soren Blaabjerg, Hakan Andersson, Hakan Andersson   +2 more
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Beyond one-fluid approximations for the thermodynamics of fluid mixtures

The Journal of Chemical Physics
Developing analytic equations of state for fluid mixtures based on perturbation theories requires simplifying approximations, in which mixture properties are determined from effective pure component properties. While these one-fluid approximations reduce model complexity, they also introduce inaccuracies.
Anja Reimer, Thorsten Winkler-Markert, Joachim Gross   +2 more
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Hypervertex approximations for fluids. I. General formalism and the linear hypervertex approximation for symmetric fluids

The Journal of Chemical Physics, 1982
A method for generating Dyson equations for two-particle fluid correlation functions is applied to the case of ionic and polar fluids to systematically yield a sequence of approximations that go beyond the lowest-order gamma-ordered approximation. The first two such approximations are given here. For the simplest class of such fluid models—those having
J. S. Ho/ye, G. Stell
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Dispersive approximations in fluid dynamics

Communications on Pure and Applied Mathematics, 1991
The authors analyze von Neumann's algorithm for solving the initial value problem for Lagrangian equations of compressible flow. Von Neumann's difference scheme consists of replacing the time and space derivatives by central difference quotients. The scheme is linearly stable in \(\ell^ 2\) sense when GFL condition is satisfied.
Hou, Thomas Y., Lax, Peter D.
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Energy-Equation Approximations in Fluid Mechanics

Journal of the Aerospace Sciences, 1962
Fig. 1 is a dimensionless plot of the digital-computer solution of Eq. (1). Each constant-^ curve peaks at a depth Froude Number, c/vgH < 1. A s ^ decreases the peaks become sharper and larger in magnitude, approaching the two-dimensional solution which gives infinite drag at c/vgH = l.
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Numerical approximation of viscoelastic fluids

ESAIM: Mathematical Modelling and Numerical Analysis, 2017
Stable finite element schemes are developed for the solution of the equations modeling the flow of viscoelastic fluids. In contrast with classical statements of these equations, which introduce the stress as a primary variable, these schemes explicitly involve the deformation tensor and elastic energy. Energy estimates and existence of solutions to the
Louis Perrotti, Noel J. Walkington, Daren Wang   +2 more
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Improved fluid superposition approximation

Molecular Physics, 1967
An improved superposition approximation is derived for the triplet correlation function of a classical simple fluid in equilibrium. The method of derivation involves the techniques of functional differentation. The associated functional Taylor expansion is taken as far as the triplet term.
G.H.A. Cole, A. Moreton
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The Electrostatic and Fluid Approximations

1998
Abstract In contrast to what occurs in vacuum or in ordinary dielectrics, the electric field of a plane wave propagating in a plasma generally has a nonvanishing longitudinal component, Eς = k · E/k ‘F- 0.
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A one molecular fluid approximation for diatomic fluid mixtures

The Journal of Chemical Physics, 1984
We investigate a one component molecular fluid approximation for conformally similar molecules. We test this scheme on (two) mixtures of rigid homonuclear diatomic Lennard-Jones (LJ) fluids for which a limited amount of information from molecular dynamics simulations is available.
Eduardo M. Waisman, J. L. Lebowitz, David MacGowan   +2 more
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Classical ionic fluids in the mean spherical approximation

Inorganica Chimica Acta, 1980
The recently obtained analytical solution of the mean spherical approximation has been used to calculate thermodynamic and structural properties of aqueous solutions of asymmetric electrolytes. The same approximation has also been used to calculate structure functions of pure and mixed molten salts.
Roberto Triolo, Antonio M. Floriano
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