Influence Analysis of Blade Fracture of Ducted Propellers of offshore platforms on Flow Field

2018 5th International Conference on Coastal and Ocean Engineering

Ou, L.J.^1 ; Zhang, W.^2

School of Civil Engineering and Transportation, South China University of Technology, Guangzhou

510640, China^1

Guangzhou Maritime Safety Administration of the People's Republic of China, Guangzhou

510700, China^2

关键词: CFD technologies;    Ducted propeller;    Flow field characteristics;    Geometrical models;    Influence analysis;    Moving mesh method;    Off shore platforms;    Surface pressure distribution;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/171/1/012012/pdf
DOI  :  10.1088/1755-1315/171/1/012012

来源: IOP

【 摘 要 】

The flow field of ducted propellers in viscous flow is analyzed and calculated with CFD technology, and the flow field and surface pressure distribution of the ducted propeller of offshore platforms with the fracture in different positions of a certain blade are simulated. Firstly, the geometrical models of the ducted propellers are established with UG software and put into the girding caved up by the Gambit. Then the numerical simulations are carried out with CFD, by which the surface pressure distribution of the ducted propellers in open water are calculated using Moving Mesh method. Lastly, the flow field characteristics of ducted propellers with the fracture in different positions of a certain blade are compared, and the result data are analyzed and summarized to gain flow field change laws. The results can be applied in project for reference.