Publication detail

Spatio-temporal description of the cavitating flow behavior around NACA 2412 hydrofoil

RUDOLF, P. ŠTEFAN, D. SEDLÁŘ, M. KOZÁK, J. HABÁN, V. HUZLÍK, R.

Czech title

Časoprostorový popis kavitujícího proudění na hydraulickém profilu NACA 2412

English title

Spatio-temporal description of the cavitating flow behavior around NACA 2412 hydrofoil

Type

conference paper

Language

en

Original abstract

Spatio-temporal description of the cavitating flow around hydrofoil with 8 degrees incidence using proper orthogonal decomposition (POD) is presented. POD is a suitable tool, which provides information not only about the flow dynamics, but also about relevance of different flow structures. POD also enables to track energy transport within the domain and energy transfer among the eigenmodes of the flow field. Analysis documents change of the flow structure for decreasing cavitation number, which can be most likely attributed to sheet/cloud cavitation transition.

Czech abstract

Článek prezentuje časově-prostorový popis nastacionárního kavitujícícho proudění na hydraulickém profilu NACA2412 s využtím vlastní ortogonální dekompozice (POD). POD poskytuje informace nejen o dynamice proudění, ale také o relevanci jednotlivých struktur proudění. POD také umožňuje sledovat transport energie v dané doméně a transfer energie mezi jednotlivými vlastními tvary. Prezentovaná analýza dokumentuje vývoj nejdůležitějších struktur kavitujícího se proudění při změně kavitačního čísla a napomáhá popisu přechodu mezi sheet a cloud kavitací.

English abstract

Spatio-temporal description of the cavitating flow around hydrofoil with 8 degrees incidence using proper orthogonal decomposition (POD) is presented. POD is a suitable tool, which provides information not only about the flow dynamics, but also about relevance of different flow structures. POD also enables to track energy transport within the domain and energy transfer among the eigenmodes of the flow field. Analysis documents change of the flow structure for decreasing cavitation number, which can be most likely attributed to sheet/cloud cavitation transition.

Keywords in English

cavitation, hydrofoil, POD, eigenmodes

RIV year

2015

Released

06.12.2015

Publisher

IOP Publishing

ISSN

1742-6596

Book

Journal of Physics: Conference Series

Volume

656

Number

1

Pages from–to

1–5

Pages count

4

BIBTEX


@inproceedings{BUT120089,
  author="Pavel {Rudolf} and David {Štefan} and Milan {Sedlář} and Jiří {Kozák} and Vladimír {Habán} and Rostislav {Huzlík},
  title="Spatio-temporal description of the cavitating flow behavior around NACA 2412 hydrofoil",
  booktitle="Journal of Physics: Conference Series",
  year="2015",
  volume="656",
  number="1",
  month="December",
  pages="1--5",
  publisher="IOP Publishing",
  issn="1742-6596"
}