NUMERICAL ANALYSIS OF UNSTEADY CAVITATING FLOW AND NOISE CHARACTERISTICS OF A 2D HYDROFOIL

N.U. Heo; J.H. Kim

doi:10.6112/kscfe.2024.29.1.001

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2024 Vol.29, Issue 1 Next Page

Original Article

NUMERICAL ANALYSIS OF UNSTEADY CAVITATING FLOW AND NOISE CHARACTERISTICS OF A 2D HYDROFOIL 2차원 수중익의 비정상 공동 유동 및 유기 소음 특성 규명을 위한 수치해석

31 March 2024. pp. 1-17

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Abstract

Due to the adverse impact of induced noise generated from ships on the marine ecosystem, there has been a gradual strengthening of international environmental regulations aimed at suppressing it. Specially, cavitation occurring in marine propellers is a major source of ship noise, making it necessary to understand the development and noise characteristics of cavitation of it. In this study, we are focusing our attention on investigating the occurrence and noise characteristics of cavitation around 2D hydrofoils using commercial program, STAR-CCM+. Additionally, the noise characteristics of cavitation are examined by conducting frequency analysis of fluctuating pressure at a vertical position above the hydrofoil and the numerical results are validated by comparison with existing experimental data.

Keywords

공동현상(Cavitation)

비정상 유동(Unsteady Flow)

전산유체역학(Computational Fluid Dynamics, CFD)

레이놀즈평균 나비에-스토크스 방정식(Reynolds Averaged Navier-Stokes equation, RANS equation)

대형 와 모사(Large Eddy Simulation, LES)

References

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Information

Publisher :Korean Society for Computational Fluids Engineering
Publisher(Ko) :한국전산유체공학회
Journal Title :Journal of Computational Fluids Engineering
Journal Title(Ko) :한국전산유체공학회지
Volume : 29
No :1
Pages :1-17
Received Date : 2023-11-15
Revised Date : 2024-02-01
Accepted Date : 2024-02-06
DOI :https://doi.org/10.6112/kscfe.2024.29.1.001

Journal of Computational Fluids Engineering ISSN:1598-6071(Print) 3022-6252(Online) 한국전산유체공학회지

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