Numerical Simulation of Free Vortex Breakdown in Compressible Flow
Author : Reid Barlow Melville
Publisher :
Page : 220 pages
File Size : 20,65 MB
Release : 1996
Category :
ISBN :
Author : Reid Barlow Melville
Publisher :
Page : 220 pages
File Size : 20,65 MB
Release : 1996
Category :
ISBN :
Author : Jasim Uddin Ahmad
Publisher :
Page : 318 pages
File Size : 50,35 MB
Release : 1989
Category : Fluid dynamics
ISBN :
Author : Elsayed Abdelfattah Shabana
Publisher :
Page : 240 pages
File Size : 41,64 MB
Release : 1994
Category :
ISBN :
Author : Qun Wang
Publisher :
Page : 388 pages
File Size : 22,72 MB
Release : 1995
Category :
ISBN :
Author : T. H. Lê
Publisher :
Page : 14 pages
File Size : 46,17 MB
Release : 1989
Category :
ISBN :
Author : Wing Tsin Ma
Publisher :
Page : 348 pages
File Size : 19,19 MB
Release : 1995
Category :
ISBN :
Author : S.A. Karabasov
Publisher :
Page : pages
File Size : 44,4 MB
Release : 2012
Category : Science
ISBN :
Direct Numerical Simulations of Compressible Vortex Flow Problems.
Author : Robert Edward Spall
Publisher :
Page : 268 pages
File Size : 29,97 MB
Release : 1987
Category : Fluid mechanics
ISBN :
Author : Lu Ting
Publisher : Springer Science & Business Media
Page : 508 pages
File Size : 12,43 MB
Release : 2007-07-05
Category : Science
ISBN : 3540685820
This monograph provides in-depth analyses of vortex dominated flows via matched and multiscale asymptotics, and demonstrates how insight gained through these analyses can be exploited in the construction of robust, efficient, and accurate numerical techniques. The book explores the dynamics of slender vortex filaments in detail, including fundamental derivations, compressible core structure, weakly non-linear limit regimes, and associated numerical methods. Similarly, the volume covers asymptotic analysis and computational techniques for weakly compressible flows involving vortex-generated sound and thermoacoustics. The book is addressed to both graduate students and researchers.
Author : S. A. Berger
Publisher :
Page : 32 pages
File Size : 19,80 MB
Release : 1992
Category :
ISBN :
The sensitivity of the onset and the location of vortex breakdowns in concentrated vortex cores, and the pronounced tendency of the breakdowns to migrate upstream have been characteristic observations of experimental investigations; they have also been features of numerical simulations and led to questions about the validity of these simulations. This behavior seems to be inconsistent with the strong time-like axial evolution of the flow, as expressed explicitly, for example, by the quasi-cylindrical approximate equations for this flow. An order-of-magnitude analysis of the equations of motion near breakdown leads to a modified set of governing equations, analysis of which demonstrates that the interplay between radial inertial, pressure, and viscous forces gives an elliptic character to these concentrated swirling flows. Analytical, asymptotic, and numerical solutions of a simplified non-linear equation are presented; these qualitatively exhibit the features of vortex onset and location noted above.