Library Subscription: Guest
Journal of Flow Visualization and Image Processing

Published 4 issues per year

ISSN Print: 1065-3090

ISSN Online: 1940-4336

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 0.6 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.6 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00013 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.14 SJR: 0.201 SNIP: 0.313 CiteScore™:: 1.2 H-Index: 13

Indexed in

ANALYSIS OF TIME-DEPENDENT VORTEX SHEDDING BY MEANS OF STREAMFUNCTIONS' STRICTLY ROTATIONAL COMPONENT

Volume 10, Issue 1-2, 2003, 38 pages
DOI: 10.1615/JFlowVisImageProc.v10.i12.50
Get accessGet access

ABSTRACT

A computational analysis is performed on the two-dimensional time-dependent Navier–Stokes equations in their streamfunction–vorticity transport form, for a numerical investigation on vortex shedding past a circular cylinder. The numerical technique is a mixed spectral-finite analytic scheme in which the flow fields are expanded in the Fourier series along the azimuthal direction and the convolutions arising from the convective terms of the vorticity transport equation are calculated by means of Fast Fourier Transform algorithms; the time advancement is performed by using a fourth-order Runge–Kutta scheme (first four iterations) and a Predictor–Corrector algorithm (subsequent iterations). The flow of a viscous incompressible fluid around an impulsively started circular cylinder at Reynolds number Re = 1000 (based on free stream velocity and cylinder diameter) is examined with particular concern to the mechanism of vortex shedding and more particularly to the shedding of the viscous part of the flow field, when separated from the inviscid. The nonsymmetric configuration of the wake is promoted by imposing at the nondimensional time t = 0 an initial perturbation to the initially irrotational flow. The perturbation consists in a slightly rotational field implemented into the computational code by means of an appropriate perturbation function; six different perturbations are tested. The results are presented for several time steps of integration, in terms of streamlines generated by the strictly rotational component of the streamfunction. The mutual interaction of the primary vortices in the near wake as a fundamental mechanism of the "viscous" vortex shedding, is demonstrated; moreover, different perturbations induce vortex shedding phenomena with different characteristics.

CITED BY
  1. Alfonsi Giancarlo, Numerical Simulations of Wave-Induced Flow Fields around Large-Diameter Surface-Piercing Vertical Circular Cylinder, Computation, 3, 3, 2015. Crossref

Begell Digital Portal Begell Digital Library eBooks Journals References & Proceedings Research Collections Prices and Subscription Policies Begell House Contact Us Language English 中文 Русский Português German French Spain