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Title
Numerical analysis of the volume of cavitation cloud in a cavitation tunnel using multiphase computational fluid dynamics simulations

ISSN printed: 1733-8670, ISSN on-line: 2392-0378
Jasionowski, Robert1; Kostrzewa, Waldemar2
URI: https://repository.am.szczecin.pl/handle/123456789/2800
2023-12-30
This work is devoted to a computational investigation of the position and volume of the cavitation cloud in a cavitation tunnel. The position of the cavitation cloud and its volume in the cavitation tunnel, determined by numerical analysis with respect to the inlet velocity, allows for the determination of the lower or higher intensity of cavitation erosion within the tunnel of the sample material. A numerical analysis is carried out on a model of a typical cavitation tunnel used to investigate the resistance of structural materials to cavitation erosion. The tunnel under study consists of barricade (upper) and counter-barricade (lower) systems. The numerical analysis is carried out with the following five different values of the velocity in the tunnel inlet: 6 m/s, 9 m/s, 12 m/s, 15 m/s, and 18 m/s in the commercial CFD software – Ansys Fluent 2019 R3. The Schnerr and Sauer cavitation model and shear stress transport (SST) viscous model k-omega are used. The paper analyzes the distribution of velocity, pressure, and volume of the cavitation cloud. On the basis of the performed numerical analyses, the optimal velocity at the inlet to the tunnel of 15 m/s is determined, for which the volume of the cavitation cloud is the largest and the phenomenon of cavitation is the most intense. The determination of the position and maximum volume of the cavitation cloud relative to the inlet velocity to the tunnel will, in future, allow us to shorten the resistance tests for cavitation erosion of different materials under real fluid flow conditions.
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Title

Numerical analysis of the volume of cavitation cloud in a cavitation tunnel using multiphase computational fluid dynamics simulations

Pages

Figures

6

Tables

1

ISSN printed

1733-8670

ISSN on-line

2392-0378

DOI

10.17402/585

Type

Original scientific article

Journal

76 Scientific Journals of the Maritime University of Szczecin, no. 76 / 2023

Publisher

Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie

Copyright Holder

Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie

Published

2023-12-30

Recieved

2023-06-29

Accepted

2023-11-06

Funding

No data

Keywords

computational fluid dynamics (CFD), CFD simulation, multiphase flows, multiphase flow models, cavitation, cavitation erosion, cavitation model

URI:

https://repository.am.szczecin.pl/handle/123456789/2800

Language

English

Authors

Jasionowski, Robert1; Kostrzewa, Waldemar2

Affiliation

1 Maritime University of Szczecin, Department of Machine Construction and Materials 2-4 Willowa St., 71-650 Szczecin, Poland, r.jasionowski@am.szczecin.pl
2 Maritime University of Szczecin, Department of Machine Construction and Materials 2-4 Willowa St., 71-650 Szczecin, Poland, w.kostrzewa@am.szczecin.pl

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