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
Experiments and CFD for the propeller wake of a generic submarine operating near the surface
TL;DR: An experimental and computational fluid dynamics (EFD and CFD) study of the appended notional submarine DARPA Suboff fitted with the 7-bladed E1658 propeller and operating near the free surface is presented in this paper.
Journal ArticleDOI
The transient prediction of a pre-swirl stator pump-jet propulsor and a comparative study of hybrid RANS/LES simulations on the wake vortices
TL;DR: In this paper, a comparative study on the wake vortices generated by the hybrid RANS/LES family at the design operating condition J = 1. 0 was conducted. And the IDDES, SDES, and SBES showed the prominent resolving ability in vortice motion and evolution than the SAS and DDES.
Journal ArticleDOI
Numerical investigation on noise reduction mechanism of serrated trailing edge installed on a pump-jet duct
Yu Sun,Wei Liu,Tian-yu Li +2 more
TL;DR: In this article, the authors used large eddy simulation (LES) method to predict the hydrodynamic performance of the pump-jet propulsion and added the FW-H acoustic model into the noise performance simulation after the flow stabilization.
Journal ArticleDOI
Transient analysis of the fluid flow on a pumpjet propulsor
Han Li,Guang Pan,Qiaogao Huang +2 more
TL;DR: In this article, the authors discussed the transient characteristic of PJP and gave a comparative analysis between steady and transient simulations using Reynolds-averaged Navier-Stokes equations (RANSE) with a focus on the transient flow field and tip clearance effect.
References
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Journal ArticleDOI
Three dimensional tidal turbine array simulations using OpenFOAM with dynamic mesh
Martin Nuernberg,Longbin Tao +1 more
TL;DR: In this article, the authors investigated the flow field characteristics in the wake of an isolated tidal turbine and arrays of up to four devices by numerical simulations solving the Reynolds Averaged Navier Stokes (RANS) equation in the Open Source OpenFOAM CFD solver to make use of the significantly increased availability of computational resources and multi-core processing.
Proceedings ArticleDOI
Sensitivity of Landing-Gear Noise Predictions by Large-Eddy Simulation to Numerics and Resolution
Journal ArticleDOI
Numerical hydrodynamic evaluation of propeller (with hub taper) and podded drive in azimuthing conditions
TL;DR: In this paper, the hydrodynamic forces on a propeller with different hub taper angles and a podded drive unit in azimuthing conditions were predicted using a Reynolds-Averaged Navier Stokes (RANS) solver.
Dissertation
Numerically-Based Ducted Propeller Design Using Vortex Lattice Lifting Line Theory
TL;DR: Thesis as mentioned in this paper, S.M. in Mechanical Engineering and Naval Architecture and Marine Engineering, Mass. Institute of Technology, Dept. of Mechanical Engineering, 2008, Boston, Massachusetts, USA.