Open AccessJournal Article
Experimental and Numerical Investigation of Marine Propeller Cavitation
TL;DR: In this paper, the cavitation phenomenon is predicted numerically on a two-dimensional hydrofoil, NACA0015, as well as propeller models A and B. The results show good agreement in comparison with available experimental data.
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About: This article is published in Scientia Iranica. The article was published on 01 Dec 2009. and is currently open access. The article focuses on the topics: Propeller & Cavitation.
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Citations
Numerical investigations of tip clearance flow characteristics of a pumpjet propulsor
TL;DR: In this article, numerical investigations of the tip clearance flow characteristics of a pumpjet propulsor based on Computational Fluid Dynamics (CFD) method have been presented The Zwart-Gerber-Belamri (Z-G-B) cavitation model based on Reynolds Averaged Navier-Stokes (RANS) method is employed The structured gird is applied The formation and development of tip clearance flows has been investigated and presented The structure of the leaky vortex has been shown The radial distributions of different velocity components with different Span along the axial direction have
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Analysis of noise behaviour for marine propellers under cavitating and non-cavitating conditions
TL;DR: In this paper, the hydrodynamics and noise behavior of marine propellers are examined through finite volume method under various operational conditions and the impact of cavitation on increasing the propeller noise is thoroughly explored and the results are presented.
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Numerical simulation of the cavitating flow around marine co-rotating tandem propellers
Boucetta Djahida,Imine Omar +1 more
TL;DR: In this article, a numerical simulation has been carried out to determine the hydrodynamic characteristics in cavitating viscous flow of the conventional INSEAN E779A propeller in single and tandem configuration by using Singhal et al. cavitation model implemented in FLUENT Software.
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Analysis of hydrodynamics and noise prediction of the marine propellers under cavitating and non-cavitating conditions
TL;DR: In this paper, the hydrodynamics of two propellers were studied under different operating conditions, and the overall sound pressure levels (SPLs) under non-cavitating and sheet cavitating conditions were extracted for each of these models.
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References
Mathematical Basis and Validation of the Full Cavitation Model
TL;DR: In this paper, the authors present the full cavitation model, which accounts for all the first-order effects of cavitation and is called as the full-cavitation model and the phase change rate expressions are derived from a reduced form of Rayleigh-Plesset equation for bubble dynamics.
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A preconditioned Navier–Stokes method for two-phase flows with application to cavitation prediction
Robert F. Kunz,David A. Boger,David R. Stinebring,Thomas S. Chyczewski,Jules W. Lindau,Howard J. Gibeling,Sankaran Venkateswaran,T. R. Govindan +7 more
TL;DR: In this paper, an implicit algorithm for the computation of viscous two-phase flows is presented, which employs a dual-time, preconditioned, three-dimensional algorithm, with multi-block and parallel execution capabilities.
891
A new modelling of cavitating flows : a numerical study of unsteady cavitation on a hydrofoil section
TL;DR: In this paper, a bubble two-phase flow (BTF) model is proposed to explain the interaction between viscous effects including vortices and cavitation bubbles, which treats the inside and outside of a cavity as one continuum by regarding the cavity as a compressible viscous fluid whose density changes greatly.
629
Cavitation of hydraulic machinery
Shengcai Li
- 01 Dec 2000
TL;DR: Li et al. as mentioned in this paper investigated the role of machine transients in the formation of single and multi-bubbles in Hydraulic Machinery, and found that the most frequent types of machine-transients are pump and pump transients.
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Simulation of steady and unsteady cavitation on a marine propeller using a rans cfd code
Takayuki Watanabe,Takafumi Kawamura,Yoshihisa Takekoshi,Masatsugu Maeda,Shin Hyung Rhee +4 more
- 01 Jan 2003
TL;DR: In this article, RANS simulations of flow around two different conventional propellers were carried out at non-cavitating and cavitating operating conditions using the multiphase flow model based on the "full cavitation model" proposed by Singhal et al.