Vortex Method
Numerical simulation of an unsteady axisymmetric flow in a poppet valve using a vortex method
... In the present study, numerical simulations of the ow in a three-dimensional axisymmet- ric poppet valve are conducted using a vortex method. The uids are assumed inviscid and incompressible. The vibration ...
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Numerical Simulation of the Wake Flow Behind an Ellipse using Random Vortex Method (RESEARCH NOTE)
... The numerical results show that the random vortex method can accurately simulate the turbulent flow around and downstream of an ellipse. Although there are not instantaneous experimental measurements ...
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Random Vortex Method for Geometries with Unsolvable Schwarz-Christoffel Formula
... A method to determine angles of the Schwarz-Christoffel mapping formula which is used in the Random Vortex Method is ...successful method in studying two-dimensional, viscous, incompressible ...
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Numerical convergence of the random vortex method for complex flows
... Two-dimensional vortex methods rely principally on a discretization of the continuous two-dimen- sional time-dependent vorticity eld into a large number of vortex \blobs" 5], whose position and strength ...
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A hybrid vortex method for two-dimensional flow over tube bundles
... gridless vortex methods to model unsteady, high Reynolds number flow over various engineering ...gridless vortex method is noniterative, artificial viscosity is not required for stability, numerical ...
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Vortical structure in forced unsteady circular jet: simulation by 3D vortex method
... three-dimensional vortex-method simula- tion on the vortex structure in the developing region of a round jet forced by axisymmetric and helical ...three-dimensional vortex-method ...
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A vortex method for wall bounded turbulent flows
... a vortex method. Smoothed vortex sheets cover the near wall region while the vorticity in the remainder of the ow is contained in convecting and stretching vortex ...and vortex ...
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INFLUENCE OF E-GLASS AND GRAPHITE PARTCLE ON AL-356 ALLOY COMPOSITE PRODUCED BY VORTEX METHOD
... Present work in the paper unveils that aluminium hybrid composites are successfully produced by Vortex method with 1.25% each and 2.5% each of E-glass fibers and Graphite particles by weight. The ...
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Reduced-Order Discrete-Vortex Method for Unsteady Airfoils with Wake Encounter.
... Suitable vortex pairs are identified for amalgamation at each time step using a modified version of Spalart’s ...resultant vortex at an optimal location to ensure that the airfoil bound circulation and the ...
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Vortex Method of Localization of Thermonuclear Plasma
... the method is that pulsed heating occurs mixture of deuterium and tritium in the frozen state ap- proximately millimeter diameter in a very short period of time, for which the clot does not have time to ...
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Fast numerical simulation of vortex shedding in tube arrays using a discrete vortex method
... new vortex has already started to form on the lower suface of the ...detached vortex is elongated as the flow is accelerated through the gap between the cylinders of the second row as can be seen in figure ...
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Prediction of growth of turbulence in a uniformly sheared flow using the vortex-in-cell method
... the vortex methods describe the ow in a Lagrangian fashion. Vortex methods have proven their validity in the numerical simulation of mixing layers and have been used extensively to simulate incompressible ...
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Turbulent flow modeling using a fast, parallel, vortex tube and sheet method
... the vortex method needs to resolve the energy containing scales of turbulent flow down to, perhaps, the inertial range, as well as the dynamical processes leading to the generation of new coherent vortices ...
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Response of a columnar vortex to a wrapped vortex loop
... loop-columnar vortex interaction is performed using an axisymmetric model for the wake vortices ...primary vortex and have evolved into an approximately ring-like ...primary vortex to the stretching ...
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High Reynolds number vortex flows: Vortex/Rayleigh wave interaction and the compressible leading-edge vortex
... non-linear vortex-wave interaction solutions are presented in studies by Hall and Sm ith (1991), Sm ith and W alton (1989,1992) and W alton ...tive vortex-wave theory where the wave m otion is of the ...
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Vortex dynamos
... and vortex patches form in an inverse cascade from small scales (McWilliams ...by vortex interactions on the large ...where vortex tubes play an important role comes from astrophysical ...
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Low-Order Modeling of Wing-Tip Vortices Using an Augmented Vortex Lattice Method.
... tip vortex and separated shear layer are represented by a sheet of vortex rings, albeit free instead of ...all vortex filaments—bound and free—are calculated as those necessary to satisfy the ...
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Contributions to the three dimensional vortex element method and spinning bluff body flows
... the Vortex element method makes it quite appealing for external flows around complex and evolving ...of vortex methods to account for the rotation or deformation of the ...
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Vortex valve
... so-called vortex valve, used as an outlet device on retention reservoirs for retention of rainstorms and later slow outflow into sewerage ...the method of numerical flow simulation, the unusual flow ...
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Blake's Vortex
... to the vacuum at the center" (Blake's Apocalypse, p. But in the preceding section of plate 15, like Urizen's movement in The Four Zoas, the passage is into the cone. Unlike Urizen, h[r] ...
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