A reliable simulation for hydrodynamic performance prediction of surface-piercing propellers using URANS method

2019 ◽  
Vol 92 ◽  
pp. 101939
Author(s):  
Hossein Nouroozi ◽  
Hamid Zeraatgar
Keyword(s):  
Performance Prediction ◽  
Hydrodynamic Performance

Numerical Simulation Calculation of Hydroplane Direct Route Motion Based on FLUENT

2012 ◽  
Vol 569 ◽  
pp. 368-375
Author(s):  
Yu Qin ◽  
Xiao Liang ◽  
Jia Ning Zhang
Keyword(s):  
Numerical Simulation ◽  
Performance Prediction ◽  
Dynamic Pressure ◽  
Hydrodynamic Performance ◽  
Navier Stokes ◽  
Navier Stokes Equation ◽  
Velocity Change ◽  
Direct Route ◽  
Field Situation ◽  
Simulation Calculation

Aiming at hydrodynamic performance prediction for hydroplane motion, numerical simulation calculation for direct route motion of a hydroplane was carried out under FLUENT software platform by using VOF method and RNG k-ε model and solving Navier-Stokes equation. Evolution of ship resistance was obtained as the velocity change, and flow field situation and dynamic pressure variation of hydroplane hull bottom were reflected intuitively. By comparing the results of FLUENT calculation and ship model experiment and theoretical estimation, analyzing, especially wake current, it was verified that numerical simulation calculation of hydroplane direct route motion and hydrodynamic performance prediction based on FLUENT are feasible and precise enough.

Unsteady Hydrodynamic Performance Prediction of Ducted Propeller Based on CFD

2013 ◽  
Vol 437 ◽  
pp. 32-35
Author(s):  
Li Jian Ou ◽  
Nan Huo Wu ◽  
De Yu Li
Keyword(s):  
Performance Prediction ◽  
Open Water ◽  
Hydrodynamic Performance ◽  
Moving Mesh Method ◽  
Ducted Propeller ◽  
Mesh Method ◽  
Bearing Force ◽  
Thrust And Torque ◽  
Wake Fields ◽  
Calculated Model

Firstly, the calculated model was created in UG and GAMBIT, and then the Moving Mesh method was adopted to simulate thrust and torque of ducted propeller using FLUENT in the open water. The thrust, torque and bearing force of ducted propeller in three different wake fields were calculated. And the influence on the performance of ducted propeller by the wake fields was analyzed.

Scale Experiments with the 5.5 Metre Yacht ANTIOPE

1974 ◽  
Author(s):  
Karl L. Kirkman
Keyword(s):  
Performance Prediction ◽  
Full Scale ◽  
Hydrodynamic Performance ◽  
Prediction Methods ◽  
Ship Model ◽  
The Family

A program of Experiments with a series of four geometrically similar yacht hull models was conducted in the HYDRONAUTICS’ Ship Model Basin with the aim of improving engineering methods for model/full-scale correlation. The paper presents a brief review of the background of existing hydrodynamic performance prediction methods, outlines a number of scaling problems, and presents results from the family of models tested.

Hydrodynamic performance prediction of a tidal current turbine operating in non-uniform inflow conditions

Energy ◽  
2015 ◽  
Vol 93 ◽  
pp. 2483-2496 ◽  
Author(s):  
Fergal O'Rourke ◽  
Fergal Boyle ◽  
Anthony Reynolds ◽  
David M. Kennedy
Keyword(s):  
Performance Prediction ◽  
Tidal Current ◽  
Hydrodynamic Performance ◽  
Tidal Current Turbine ◽  
Current Turbine ◽  
Inflow Conditions

Hydrodynamic Performance Prediction of Stepped Planing Craft Using CFD and ANNs

2021 ◽  
Author(s):  
Hamid Kazemi ◽  
M. Mehdi Doustdar ◽  
Amin Najafi ◽  
Hashem Nowruzi ◽  
M. Javad Ameri
Keyword(s):  
Performance Prediction ◽  
Hydrodynamic Performance ◽  
Planing Craft

A Panel Method for the Hydrodynamic Performance Prediction of a Water-jet and an Inducer

2012 ◽  
Author(s):  
Spyros A. Kinnas ◽  
Shu-Hao Chang ◽  
Alokraj Valsaraj
Keyword(s):  
Performance Prediction ◽  
Present Method ◽  
Rocket Engine ◽  
Water Jet ◽  
Panel Method ◽  
Hydrodynamic Performance ◽  
Jet Pump ◽  
Time Step ◽  
Flow Solver ◽  
Turbo Pump

This paper presents the analyses of the hydrodynamic performance for a marine water-jet propulsor and a rocket engine turbo pump inducer by using a potential flow solver based on a low order panel method. The steady and unsteady fully-wetted and cavitating simulations for the water-jet rotor only problem are investigated and the steady fully-wetted simulation for the inducer is studied in this paper. The convergence studies of rotor averaged cavitating circulation distributions with number of panels on the blade and with different time step sizes are presented in the water-jet case. Finally, the predictions of the hydrodynamic performance for the water-jet pump and the inducer from the present method are validated against existing experimental data or numerical results from RANS solvers.

The Optimization Design of the Planing Vessel's Channel Parameters Based on the CFD Technology

2013 ◽  
Vol 344 ◽  
pp. 15-18
Author(s):  
Hai Long Shen ◽  
Wei Lu ◽  
Yu Min Su
Keyword(s):  
Performance Prediction ◽  
Research Method ◽  
Optimization Design ◽  
Prediction Method ◽  
Hydrodynamic Performance ◽  
Design Parameters ◽  
Channel Parameters ◽  
Long Time ◽  
Numerical Research ◽  
Planing Vessel

Due to the special hull shape of the catamaran planing vessel, the shiplines optimization design and the hydrodynamic performance prediction of the catamaran planing vessel are mainly carried out by model tank tests and the empirical formula at present. The numerical prediction method of the hydrodynamic performance of catamaran planing vessel has been a big difficulty for a long time. In this paper, the influence of the key channel design parameters on the catamaran planing vessel hydrodynamic performance is studied based on the CFD technology. Some beneficial conclusions are obtained which is helpful for the optimization design of catamaran planing vessel. The work of this paper provides a numerical research method for the optimization design of the catamaran planing vessels hull.

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