Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Three Dimensional Vortex Methods For The Analysis Of Wave Propagation On Vortex Filaments PDF full book. Access full book title Three Dimensional Vortex Methods For The Analysis Of Wave Propagation On Vortex Filaments.
| Author | : An-min Chʻi |
| Publisher | : |
| Total Pages | : 186 |
| Release | : 1991 |
| Genre | : |
| ISBN | : |
| Author | : Anmin Qi |
| Publisher | : |
| Total Pages | : 210 |
| Release | : 1991 |
| Genre | : |
| ISBN | : |
| Author | : Kyoji Kamemoto |
| Publisher | : World Scientific |
| Total Pages | : 228 |
| Release | : 2000-05-11 |
| Genre | : Technology & Engineering |
| ISBN | : 9814493287 |
Vortex methods have been developed and applied to many kinds of flows related to various problems in wide engineering and scientific fields. The purpose of the First International conference on Vortex methods was to provide an opportunity for engineers and scientists to present their achievements, exchange ideas and discuss new developments in mathematical and physical modeling techniques and engineering applications of vortex methods.
| Author | : Claude Alexander Greengard |
| Publisher | : |
| Total Pages | : 124 |
| Release | : 1984 |
| Genre | : |
| ISBN | : |
| Author | : Jeffrey S. Marshall |
| Publisher | : |
| Total Pages | : 50 |
| Release | : 1999 |
| Genre | : Fluid dynamics |
| ISBN | : |
An experimental and computational study of the impact of a vortex with a body oriented normal to the vortex axis was performed. Particular focus was placed on understanding characteristics of the secondary vorticity ejected from the body and the interaction of the secondary vorticity with the primary vortex. Since both onset of boundary layer separation and the form of the secondary vorticity structures are sensitive to variation of the velocity normal to the body axis, the effect of normal velocity on vortex-body interaction was carefully examined. The physical features of the flow evolution were categorized in terms of an impact parameter and a thickness parameter, which respectively represent ratios of velocity and length scales associated with the vortex to those associated with the flow in the absence of the vortex. Experiments were performed using a combination of laser-induced fluorescence (LIF) flow visualization and particle-image velocimetry (PIV) in a water tank to examine the form of the secondary vorticity structures with both "high" and "low" values of the impact parameter for normal vortex interaction with a circular cylinder and with a thin blade. A new type of Lagrangian vorticity method based on a tetrahedral mesh was developed and applied to compute the secondary vorticity evolution during vortex-cylinder interaction. Computations were also performed for model problems to examine in detail wrapping of a vortex loop around a columnar vortex and impulsive cutting of a columnar vortex with finite axial flow.
| Author | : J.T. Beale |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 385 |
| Release | : 2013-04-18 |
| Genre | : Technology & Engineering |
| ISBN | : 9401581371 |
Many important phenomena in fluid motion are evident in vortex flow, i.e., flows in which vortical structures are significant in determining the whole flow. This book, which consists of lectures given at a NATO ARW held in Grenoble (France) in June 1992, provides an up-to-date account of current research in the study of these phenomena by means of numerical methods and mathematical modelling. Such methods include Eulerian methods (finite difference, spectral and wavelet methods) as well as Lagrangian methods (contour dynamics, vortex methods) and are used to study such topics as 2- or 3-dimensional turbulence, vorticity generation by solid bodies, shear layers and vortex sheets, and vortex reconnection. For researchers and graduate students in computational fluid dynamics, numerical analysis, and applied mathematics.
| Author | : H. L. Chen |
| Publisher | : |
| Total Pages | : 68 |
| Release | : 1991 |
| Genre | : Vortex motion |
| ISBN | : |
In the present study, generation of two vortex rings and their cut-and-connect process were numerically simulated by solving three-dimensional and time-dependent Navier-Stokes equations, under conditions similar to the laboratory experiment. In order to explain the mechanism of cut-and-connect, velocity, vorticity, pressure, helicity density and energy dissipation were examined for the flow field of the cut-and-connect of vortex rings. The present study revealed that energy dissipation is an essential process for circulation cancellation during vortex tubes cutting. Based on this energy dissipation mechanism, it is concluded that the cut-and-connect of vortex tubes may occur in the limit of inviscid flows. This conclusion is particularly important to the three-dimensional discrete vortex method for computing high Reynolds number flows. Features of helicity in the three-dimensional flow field of cut-and-connect process of vortex tubes were also investigated. The relation between the helicity density and the energy dissipation function in the three-dimensional flow field was examined.
| Author | : Georges-Henri Cottet |
| Publisher | : Cambridge University Press |
| Total Pages | : 0 |
| Release | : 2008-04-24 |
| Genre | : Science |
| ISBN | : 9780521061704 |
Vortex methods have matured in recent years, offering an interesting alternative to finite difference and spectral methods for high resolution numerical solutions of the Navier Stokes equations. In the past three decades, research into the numerical analysis aspects of vortex methods has provided a solid mathematical background for understanding the accuracy and stability of the method. At the same time vortex methods retain their appealing physical character, which was the motivation for their introduction. This book presents and analyzes vortex methods as a tool for the direct numerical simulation of impressible viscous flows. It will interest graduate students and researchers in numerical analysis and fluid mechanics and also serve as an ideal textbook for courses in fluid dynamics.
| Author | : Christopher Radcliff Anderson |
| Publisher | : American Mathematical Soc. |
| Total Pages | : 776 |
| Release | : 1991-12-23 |
| Genre | : Science |
| ISBN | : 9780821896969 |
Understanding vortex dynamics is the key to understanding much of fluid dynamics. For this reason, many researchers, using a great variety of different approaches--analytical, computational, and experimental--have studied the dynamics of vorticity. The AMS-SIAM Summer Seminar on Vortex Dynamics and Vortex Methods, held in June 1990 at the University of Washington in Seattle, brought together experts with a broad range of viewpoints and areas of specialization. This volume contains the proceedings from that seminar. The focus here is on the numerical computation of high Reynolds number incompressible flows. Also included is a smaller selection of important experimental results and analytic treatments. Many of the articles contain valuable introductory and survey material as well as open problems. Readers will appreciate this volume for its coverage of a wide variety of numerical, analytical, and experimental tools and for its treatment of interesting important discoveries made with these tools.
| Author | : Hong Zhou |
| Publisher | : |
| Total Pages | : 290 |
| Release | : 1996 |
| Genre | : |
| ISBN | : |
