Journal ArticleDOI
Numerical analysis on the wake dynamics of a ducted propeller
Qin Zhang,Rajeev K. Jaiman +1 more
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TLDR
In this paper, the wake dynamics and instabilities of a ducted propeller are numerically investigated at a Reynolds number of R e n = 1.765 × 10 5, and the numerical simulation is achieved by employing a hybrid RANS/LES model and the transient sliding mesh approach.About:
This article is published in Ocean Engineering.The article was published on 2019-01-01. It has received 48 citations till now. The article focuses on the topics: Ducted propeller & Vortex.read more
Citations
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Journal ArticleDOI
2D-3C PIV measurement of the near wake of a ducted propeller
TL;DR: In this paper , the development of tip and hub vortices and the contraction of the slipstream in the near wake were analyzed using the time-averaged velocities measured by the towed underwater stereo particle image velocimetry (SPIV) system.
Journal ArticleDOI
Comparison between the acoustic signatures of a conventional propeller and a tip-loaded propeller with winglets
TL;DR: In this paper , the acoustic signature of two marine propellers with and without winglets at the tip of their blades is reconstructed using the Ffowcs-Williams and Hawkings acoustic analogy.
Journal ArticleDOI
Experimental and numerical investigations on coupled thruster and hull interactions for a benchmark ASD tug
TL;DR: In this article , the propulsive performance of a benchmark azimuthing stern drive (ASD) tug is evaluated through a series of model-scale experiments and numerical simulations and the results from this study are used to develop higher fidelity propulsion models and a digital twin of a tug, which can simulate the hydrodynamic behaviour and response of the vessel in real-time.
Journal ArticleDOI
RETRACTED ARTICLE: Numerical investigation to observe combined effect of propeller boss cap fin (PBCF) and propeller duct to improve propeller efficiency
TL;DR: In this article, the combined effect of PBCF and propeller ducts as ESDs to improve propeller efficiency was investigated in a moving reference frame approach, and numerical investigations were performed with propeller and 19A duct.
Journal ArticleDOI
Research on the Performance of Pumpjet Propulsor of Different Scales
Dakui Feng,Angela A. Albanese +1 more
TL;DR: In this article , the open-water performance of a pumpjet propulsor at different scales was analyzed using the Reynolds-averaged Navier-Stokes (RANS) method with SST k-ω turbulence model.
References
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Proceedings ArticleDOI
A one-equation turbulence model for aerodynamic flows
Philippe R. Spalart,S. Allmaras +1 more
Journal ArticleDOI
A new version of detached-eddy simulation, resistant to ambiguous grid densities
Philippe R. Spalart,Sébastien Deck,Michael Shur,Kyle D. Squires,M. Kh. Strelets,Andrey Travin +5 more
TL;DR: In this paper, the authors proposed the DES97 model, denoted DES97 from here on, which can exhibit an incorrect behavior in thin boundary layers and shallow separation regions, when the grid spacing parallel to the wall becomes less than the boundary-layer thickness.
Journal Article
Procedure for Estimation and Reporting of Uncertainty Due to Discretization in CFD Applications
Book
Marine Propellers and Propulsion
TL;DR: Marine Propellers and Propulsion as discussed by the authors provides comprehensive and cutting edge coverage to equip marine engineers, naval architects and anyone involved in propulsion and hydrodynamics with the knowledge needed to do the job.
Journal ArticleDOI
Conservative interpolation between volume meshes by local Galerkin projection
TL;DR: This paper presents an algorithm for the local implementation of Galerkin projection of discrete fields between meshes, which extends naturally to three dimensions and is very efficient.