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A method for generating lifting surface profiles from simplified parametric equations

conference contribution
posted on 2023-05-23, 15:35 authored by Patrick RussellPatrick Russell, Bryce PearceBryce Pearce, Paul BrandnerPaul Brandner
Mathematically rigorous tools for the definition of thickness and camber distributions have been developed which simplify the generation of lifting surface geometry and ensure smooth variation of profile curvature. The developed tools can produce almost identical geometries to many standard profiles including the classical NACA series. To assist in development, section profiles are formulated from parametric equations that encapsulate the key flow parameters such as the leading-edge radius, and the locations of maximum thickness and camber. This enables context dependent optimisation starting from a well-established base profile. Use of these tools is demonstrated by development of a complex hydrofoil geometry to study cavitation in tip leakage flow. The ratio of lift coefficient to minimum pressure coefficient is used to determine cavitation performance. The hydrofoil geometry is based on a NACA 66-012 (mod) profile, which has been improved to achieve good cavitation performance over a wider range of incidence.

Funding

Office of Naval Research

History

Publication title

Proceedings of the 23rd Australasian Fluid Mechanics Conference

Editors

C Lei, B Thornber and S Armfield

Pagination

AFMC2022-130

ISSN

2653-0597

Department/School

Australian Maritime College

Publisher

Australasian Fluid Mechanics Society

Place of publication

Australia

Event title

23rd Australasian Fluid Mechanics Conference - 23AFMC

Event Venue

Sydney

Repository Status

  • Restricted

Socio-economic Objectives

Maritime; International sea freight transport (excl. live animals, food products and liquefied gas); Expanding knowledge in engineering

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