... of high-speed hydrofoils and marine propeller placed in a numerical pool with free surface is studied by numerical simulation. Based on the pressure reduction coefficient and cavitation number at the section of propeller blade at a certain immersion depth, the occurrence mechanism of cavitation...

... Noise around 2-D Hydrofoil with Direct Volume Integration Lianjie Yu1, Qingjie Meng2, Decheng Wan1* 1 Computational Marine Hydrodynamics Lab (CMHL), School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai, China 2 Wuhan Second Ship Design and Research Institute...

... Cavitation and Its Control of an Elliptical Hydrofoil Kang Liu1, Jianwei Wu2, Liushuai Cao1, Decheng Wan1* 1 Computational Marine Hydrodynamics Lab (CMHL), School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai, China 2 Wuhan Second Ship Design and Research...

... passenger transportation cavitation inception number cavitation number marine transportation drag coefficient hydrofoil tip vortex cavitation clearance cavitation inception hydrofoil cavitation inception experimental study vortice cavitation vortex cavitation tip clearance...

... of relative camber on hydrofoil cavitation Yang-Fan Xu1, Han-Bing Sun1 Qing-Wei Ma2, and Shi-Qiang Yan2 1. College of Shipbuilding Engineering, Harbin Engineering University, China 2. Schools of Engineering and Mathematical Science, City University, UK ABSTRACT Cavitation is a complex hydrodynamic phase...

... passenger transportation marine transportation machine learning deep learning simulation hydrofoil artificial intelligence cnn algorithm information coefficient cnn model prediction algorithm neural network cfd method convolutional neural network output layer aoa computational...

... Abstract In this paper, to reveal the influence of different turbulence models on cavitation dynamics of a hydrofoil, we take NACA0015 geometry as an example, the Shear Stress Transport (SST) k-ω turbulence model and Large Eddy Simulation (LES) method are utilized to simulate the cavitation...

... marine transportation flow field robot is upstream oil & gas different rotation rate robot artificial intelligence passenger transportation hydrofoil underwater robot move hydrodynamic performance main body rotation rate propeller thrust ducted propeller numerical result...

... Abstract The aim of the study is to investigate fluid-structure interaction (FSI) response and hydrodynamic performance of the 3D flexible hydrofoil in a uniform flow field. The paper focus on the analysis and discussion of the influence of different span of a three-dimensional elastic...

...ABSTRACT ABSTRACT In this paper, the tip-vortex cavitation of NACA0009 hydrofoil is simulated at three tip clearances and one foil incidence angle. Two RANS turbulence models and LES sub-grid model are used in simulations. The key characteristics, including cavity trajectory, cavity shape...

... The main attention of present work is to investigate the ability of a adaptive mesh ganeration method in accurate cavitation simulation. A numerical study of the cavitation around NACA66 hydrofoil has been carried out. The simulation results such as cavitation shape, the lift coefficient C L...

... ABSTRACT In order to study the inhibition effects of placed obstacles and control mechanism of the re-entrant jet on the generation of the cloud cavitation, numerical simulations are performed on elliptic nose hydrofoils equipped with and without obstacles. A new modified stabilized SST k-ω...

... ABSTRACT The present work focuses on the comparison of the numerical simulation of sheet/cloud cavitation with RANS and LES method around NACA0012 hydrofoil. Three kinds of turbulence models -- SST k-ω, modified SST k-ω and Smagorinsky model are used in this paper. The unstable sheet cavity...

... a hydrofoil using the finite volume method. The results showed that the ventilation parameters affect the evolution of cavitation, and increasing the aeration can help to form periodic cavitation flow. Mäkiharju et al. (2015) studied the influence of noncondensable gases on the evolution of cloud cavitation...

... ABSTRACT The VIScous Vorticity Equation (VISVE) method has already been applied to solve the laminar flow around a cylinder and a hydrofoil at low Reynolds numbers. This method is more computationally efficient and spatially compact than a viscous flow method based on primitive variables...

... ABSTRACT In this paper, we use modified RNG k-ε turbulent model and homogeneous equilibrium method to numerically study unsteady cavitating flows around two-dimensional NACA0012 hydrofoil. In order to find a way to efficiently suppress the cavitation on the hydrofoil surface, we propose two...

... monitoring stratified fluid hydrofoil production logging velocity profile high reynolds number reynolds shear stress vertical fluctuation ABSTRACT The vortex shedding was simulated by viscous CFD technique when the linearly stratified fluid past a hydrofoil at a constant speed. Based...

... simulation pressure distribution pressure coefficient cavitation flow sheet cavitation numerical simulation cloud cavitation upstream oil & gas cylinder hydrofoil suction side frequency fluid dynamics sst k-omega model shedding cavitation number cavitation turbulence model...

... ABSTRACT An experimental study was conducted to characterize the vibrations of a hydrofoil-rod system at a chord Reynolds number up to Re c = 8.8 × 10 6 . Measurements are performed for a steel NACA 0017 model with a uniform section at angles of attack AOA ranging from 5° to 12...

... ship propulsion social responsibility renewable energy average thrust wave height thrust terao experiment wave energy propulsion wave length hydrofoil sustainable development efficiency floater propulsion efficiency energy conservation free surface time history time history...