Publication detail

Vortex Identification in Different Types of Flow

RUDOLF, P.

Original Title

Vortex Identification in Different Types of Flow

Type

conference paper

Language

English

Original Abstract

Lots of vortex definitions were devised to locate vortex cores and there is no common consensus on the best one. Four vortex identification methods were applied in this paper, namely pressure minimum, vorticity modulus, normalized helicity and Q - criterion for three different types of flow (steady flow in curved channel of rectangular cross-section, unsteady flow in elbow draft tube, unsteady flow over backward facing step). Each criterion has different performance for the particular flow type. But it can be very roughly generalized that pressure minimum is too coarse and and Q-criterion worke best. Finally it must be stressed that threshols specification plays key role for all criteria.

Key words in English

vortex identification, criterion, helicity, vorticity

Authors

RUDOLF, P.

RIV year

2005

Released

16. 2. 2005

Publisher

Institute of Thermomechanics

Location

Prague

ISBN

80-85918-92-7

Book

Topical Problems of Fluid Mechanics 2005

Edition number

1

Pages from

91

Pages to

94

Pages count

4

BibTex

@inproceedings{BUT18451,
  author="Pavel {Rudolf}",
  title="Vortex Identification in Different Types of Flow",
  booktitle="Topical Problems of Fluid Mechanics 2005",
  year="2005",
  number="1",
  pages="4",
  publisher="Institute of Thermomechanics",
  address="Prague",
  isbn="80-85918-92-7"
}