University of Tasmania
Browse

File(s) under permanent embargo

Cloud cavitation behavior on a hydrofoil due to fluid-structure interaction

journal contribution
posted on 2023-05-20, 00:21 authored by Smith, SM, James VenningJames Venning, Dean GiosioDean Giosio, Paul BrandnerPaul Brandner, Bryce PearceBryce Pearce, Young, YL
Despite recent extensive research into fluid–structure interaction (FSI) of cavitating hydrofoils, there remain insufficient experimental data to explain many of the observed phenomena. The cloud cavitation behavior around a hydrofoil due to the effect of FSI is investigated, utilizing rigid and compliant three-dimensional (3D) hydrofoils held in a cantilevered configuration in a cavitation tunnel. The hydrofoils have identical undeformed geometry of tapered planform with a constant modified NACA0009 profile. The rigid model is made of stainless steel and the compliant model of a carbon and glass fiber-reinforced epoxy resin with the structural fibers aligned along the spanwise direction to avoid material bend-twist coupling. Tests were conducted at an incidence of 6 deg, a mean chord-based Reynolds number of 0.7 × 106 and cavitation number of 0.8. Force measurements were simultaneously acquired with high-speed imaging to enable correlation of forces with tip bending deformations and cavity physics. Hydrofoil compliance was seen to dampen the higher frequency force fluctuations while showing strong correlation between normal force and tip deflection. The 3D nature of the flow field was seen to cause complex cavitation behavior with two shedding modes observed on both models.

History

Publication title

Journal of Fluids Engineering

Volume

141

Issue

4

Article number

41105

Number

41105

Pagination

1-8

ISSN

0098-2202

Department/School

Australian Maritime College

Publisher

Asme-Amer Soc Mechanical Eng

Place of publication

Three Park Ave, New York, USA, Ny, 10016-5990

Rights statement

Copyright 2019 ASME

Repository Status

  • Restricted

Socio-economic Objectives

Emerging defence technologies; Maritime; Expanding knowledge in engineering

Usage metrics

    University Of Tasmania

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC