Publication detail

Cavitation in Fractal Geometry Orifices

RUDOLF, P. KUBINA, D. HUDEC, M. HOCHMAN, O. POCHYLÝ, F.

Original Title

Cavitation in Fractal Geometry Orifices

Type

conference paper

Language

English

Original Abstract

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.

Keywords

cavitation; fractal shape; hydraulic loss; pressure pulsations

Authors

RUDOLF, P.; KUBINA, D.; HUDEC, M.; HOCHMAN, O.; POCHYLÝ, F.

Released

3. 12. 2018

Publisher

ASME

ISBN

9780791861851

Book

Proceedings of the 10th Symposium on Cavitation (CAV2018)

Pages from

1

Pages to

5

Pages count

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",
  pages="1--5",
  publisher="ASME",
  isbn="9780791861851"
}