Detail publikace

Relation between the Fourier transform, POD and VOD

POCHYLÝ, F. FIALOVÁ, S. ŠTEFAN, D.

Originální název

Relation between the Fourier transform, POD and VOD

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

This paper presents a comparison of a decomposition of unsteady vector fields, based on the principle of Shannon-Kotelnik theorem and singular decomposition methods. The article points out the relation between the discrete Fourier transform based on Kotelnik series and methods of singular Orthogonal Decomposition. It is used with success in the image processing and modal decomposition of the vortex structures and assessing their stability in a fluid flow. The Fourier transform method has the advantage that it is not necessary to solve the problem of the eigenvalues of relatively large orders of the matrices. Both methods are equally effective for qualitative analysis.

Klíčová slova

orthogonal decomposition, swirling flow, Fourier transformation

Autoři

POCHYLÝ, F.; FIALOVÁ, S.; ŠTEFAN, D.

Vydáno

27. 6. 2019

Nakladatel

AIP Conference Proceedings

ISBN

978-0-7354-1858-5

Kniha

AIP Conference Proceedings

ISSN

1551-7616

Periodikum

AIP Conference Proceedings

Stát

Spojené státy americké

Strany od

1

Strany do

8

Strany počet

8

URL

https://aip.scitation.org/doi/10.1063/1.5114764

BibTex

@inproceedings{BUT158036,
  author="František {Pochylý} and Simona {Fialová} and David {Štefan}",
  title="Relation between the Fourier transform, POD and VOD",
  booktitle="AIP Conference Proceedings",
  year="2019",
  journal="AIP Conference Proceedings",
  pages="1--8",
  publisher="AIP Conference Proceedings",
  doi="10.1063/1.5114764",
  isbn="978-0-7354-1858-5",
  issn="1551-7616",
  url="https://aip.scitation.org/doi/10.1063/1.5114764"
}