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A three-dimensional cerebrovascular flow phantom
Medical Physics, 1999We have constructed a life-sized fully three-dimensional (3D) rigid flow-through model of the cerebral vasculature. Average vessel diameters and lengths, taken from published values in the literature, were used to describe the geometry of our phantom; numerically controlled machining techniques were used to fabricate the model. Inflow to the phantom is
R, Fahrig +3 more
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One-Dimensional and Three-Dimensional Models of Cerebrovascular Flow
Journal of Biomechanical Engineering, 2004The Circle of Willis is a ring-like structure of blood vessels found beneath the hypothalamus at the base of the brain. Its main function is to distribute oxygen-rich arterial blood to the cerebral mass. One-dimensional (1D) and three-dimensional (3D) computational fluid dynamics (CFD) models of the Circle of Willis have been created to provide a ...
S M, Moore +4 more
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Numerical simulation of three dimensional transonic flows
14th Atmospheric Flight Mechanics Conference, 1987AbstractThe three‐dimensional flow over a projectile has been computed using an implicit, approximately factored, partially flux‐split algorithm. A simple composite grid scheme has been developed in which a single grid is partitioned into a series of smaller grids for applications which require an external large memory device such as the SSD of the ...
Sahu, Jubaraj, Steger, Joseph L.
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Three-Dimensional Instability of Elliptical Flow
Physical Review Letters, 1986On presente une theorie pour l'instabilite non visqueux d'une onde courte tridimensionnelle de l'ecoulement elliptique bidimensionnel ...
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1994
Abstract Homogeneous (or zero-dimensional), one-dimensional, two-dimensional, and axially symmetric flows are idealizations and all real gas flows are threedimensional. In DSMC computations of the idealized flows with restricted dimensions, the other dimension or dimensions may be regarded as being so small that the statistical ...
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Abstract Homogeneous (or zero-dimensional), one-dimensional, two-dimensional, and axially symmetric flows are idealizations and all real gas flows are threedimensional. In DSMC computations of the idealized flows with restricted dimensions, the other dimension or dimensions may be regarded as being so small that the statistical ...
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Three dimensional flow computations with shock fitting
28th Aerospace Sciences Meeting, 1990The paper provides a shock-fitting technique for solving inviscid transonic three-dimensional flows. The continuous flow field is computed by means of an implicit fast Euler solver, which separately integrates compatibility conditions, written in terms of generalized Riemann variables along appropriate bicharacteristic lines.
Andrea Dadone, Bernardo Fortunato
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Three-dimensional flow in cavities
Journal of Fluid Mechanics, 1963The flow inside rectangular and other cavities in a wall has been investigated at low subsonic velocities using oil flow and surface static-pressure distributions. Evidence has been found of regular three-dimensional flows in cavities with large span-to-chord ratios which would normally be considered to have two-dimensional flow near their centre-lines.
Maull, D. J., East, L. F.
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One-Dimensional Three-Fluid Flows
2007We call “one dimensional” the flow in pipes or in a pipe networks. We understand here a flow with cross section averaged flow characteristics with special wall boundary layer treatment, like pressure loss modeling, heat transfer modeling etc. The flow axis is of course arbitrarily oriented in space.
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Modeling Three-Dimensional Flow
1987The basic laws governing the flow of water were presented in the previous chapter. However, one cannot solve flow problems by using only these laws. Equation (2.1.19) is a single equation in two dependent variables: q(x, y, z, t) and o(x, y, z, t). It can also be regarded as three equations in four unknowns o, q x , q y ,q z .
Jacob Bear, Arnold Verruijt
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2011
Fluid mechanical or CFD simulation (CFD: computational fluid dynamics) is playing an increasingly important role in the simulation of engine processes, as it makes possible the most detailed physical description of the relevant processes. The most diverse processes in the engine field are considered, like charge changing, in-cylinder flow, exhaust gas ...
Frank Otto, Christian Krüger
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Fluid mechanical or CFD simulation (CFD: computational fluid dynamics) is playing an increasingly important role in the simulation of engine processes, as it makes possible the most detailed physical description of the relevant processes. The most diverse processes in the engine field are considered, like charge changing, in-cylinder flow, exhaust gas ...
Frank Otto, Christian Krüger
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