Numerical Study On Cut And Connect Of Three Dimensional Vortex Tubes PDF Download
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Author | : H. L. Chen |
Publisher | : |
Total Pages | : 68 |
Release | : 1991 |
Genre | : Vortex motion |
ISBN | : |
Download Numerical Study on Cut-and-connect of Three Dimensional Vortex Tubes Book in PDF, ePub and Kindle
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 | : |
Publisher | : |
Total Pages | : 500 |
Release | : 1995 |
Genre | : Aeronautics |
ISBN | : |
Download Scientific and Technical Aerospace Reports Book in PDF, ePub and Kindle
Author | : Christopher Radcliff Anderson |
Publisher | : American Mathematical Soc. |
Total Pages | : 776 |
Release | : 1991-12-23 |
Genre | : Science |
ISBN | : 9780821896969 |
Download Vortex Dynamics and Vortex Methods Book in PDF, ePub and Kindle
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 | : Robert Edward Spall |
Publisher | : |
Total Pages | : 268 |
Release | : 1987 |
Genre | : Fluid mechanics |
ISBN | : |
Download A Numerical Study of Three-dimensional Vortex Breakdown Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 1768 |
Release | : 1991 |
Genre | : Government publications |
ISBN | : |
Download Government Reports Annual Index Book in PDF, ePub and Kindle
Author | : Anmin Qi |
Publisher | : |
Total Pages | : 210 |
Release | : 1991 |
Genre | : |
ISBN | : |
Download Three Dimensional Vortex Methods for the Analysis of Wave Propagation on Vortex Filaments Book in PDF, ePub and Kindle
Author | : Russel E. Caflisch |
Publisher | : SIAM |
Total Pages | : 240 |
Release | : 1989-01-01 |
Genre | : Science |
ISBN | : 9780898712353 |
Download Mathematical Aspects of Vortex Dynamics Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 896 |
Release | : 1992 |
Genre | : Aeronautics |
ISBN | : |
Download The Aeronautical Journal Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 804 |
Release | : 1971 |
Genre | : Mechanics, Applied |
ISBN | : |
Download Applied Mechanics Reviews Book in PDF, ePub and Kindle
Author | : National Research Council |
Publisher | : |
Total Pages | : 856 |
Release | : 1991-01-15 |
Genre | : Science |
ISBN | : |
Download Eighteenth Symposium on Naval Hydrodynamics Book in PDF, ePub and Kindle
This volume contains technical papers and discussions covering ship motions, ship hydrodynamics, experimental techniques, free-surface aspects, wave/wake dynamics, propeller/hull/appendage interactions, and viscous effects.