Detail publikace
Kavitace v clonách s fraktální geometrií
RUDOLF, P. KUBINA, D. HUDEC, M. HOCHMAN, O. POCHYLÝ, F.
Český název
Kavitace v clonách s fraktální geometrií
Anglický název
Cavitation in Fractal Geometry Orifices
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
en
Originální abstrakt
An experimental research of three types of orifices was carried out in a hydraulic circuit. One-hole orifice and two fractal-shaped orifices (von Koch snowflake, Apollonian gasket) were tested. Fractal-shaped orifices had lower pressure loss in non-cavitating regime. For cavitating conditions, von Koch snowflake orifice maintained the reduced pressure loss, while pressure loss curve within Apollonian gasket orifice gradually aligned with that of one-hole orifice. Dynamics of the cavitating flow behind the orifices featured distinct peak for one-hole orifice connected with shedding of one strong coherent vortical structure, while pressure amplitudes for fractal-shaped orifices (especially von Koch snowflake orifice) were significantly lower. This conclusion is attributed to multiscale behavior of the flow behind the fractal-shaped orifices.
Anglický abstrakt
An experimental research of three types of orifices was carried out in a hydraulic circuit. One-hole orifice and two fractal-shaped orifices (von Koch snowflake, Apollonian gasket) were tested. Fractal-shaped orifices had lower pressure loss in non-cavitating regime. For cavitating conditions, von Koch snowflake orifice maintained the reduced pressure loss, while pressure loss curve within Apollonian gasket orifice gradually aligned with that of one-hole orifice. Dynamics of the cavitating flow behind the orifices featured distinct peak for one-hole orifice connected with shedding of one strong coherent vortical structure, while pressure amplitudes for fractal-shaped orifices (especially von Koch snowflake orifice) were significantly lower. This conclusion is attributed to multiscale behavior of the flow behind the fractal-shaped orifices.
Klíčová slova česky
kavitace; fraktální tvar; hydraulická ztráta; tlakové pulzace
Klíčová slova anglicky
cavitation; fractal shape; hydraulic loss; pressure pulsations
Vydáno
03.12.2018
Nakladatel
ASME
ISBN
9780791861851
Kniha
Proceedings of the 10th Symposium on Cavitation (CAV2018)
Strany od–do
1–5
Počet stran
5
BIBTEX
@inproceedings{BUT153419,
author="Pavel {Rudolf} and Dávid {Kubina} and Martin {Hudec} and Ondřej {Hochman} and František {Pochylý},
title="Cavitation in Fractal Geometry Orifices",
booktitle="Proceedings of the 10th Symposium on Cavitation (CAV2018)",
year="2018",
month="December",
pages="1--5",
publisher="ASME",
isbn="9780791861851"
}