Integrated lifting line/surface panel method for optimal propeller design with consideration of hub effect

2019 ◽  
Vol 31 (6) ◽  
pp. 1218-1230
Author(s):  
Wen-yu Sun ◽  
Guo-fu Huang
Keyword(s):  
Panel Method ◽  
Surface Panel Method ◽  
Propeller Design ◽  
Lifting Line ◽  
Hub Effect

Integrated Optimal Design of Ducted Propeller Based on DOE

2011 ◽  
Vol 291-294 ◽  
pp. 1698-1703 ◽  
Author(s):  
Zhuo Yi Yang ◽  
Yan Ma ◽  
Yan Xue Chen
Keyword(s):  
Design Method ◽  
Integrated Design ◽  
Panel Method ◽  
Hydrodynamic Performance ◽  
Surface Panel Method ◽  
Optimal Method ◽  
Scheme Design ◽  
Propeller Design ◽  
Design Variables ◽  
Ducted Propeller

Ducted propeller is a normal thrust used widely in ship field, and the traditional design method could be improved by advanced computer technology of integrated design. Surface panel method predicting hydrodynamic performance of propeller and CFD were both used here, to ensure the results from surface panel method were believable. Surface panel program of ducted propeller was integrated in iSIGHT optimization platform, where the pitches in different radius were optimized and studied to find the best scheme. Design of experiment was selected as optimal method. Design variables were auto-chosen in the design space and optimal process was auto-executed. Besides, the effect of parameters to objective was gained. The final result showed that this method which can improve the efficiency of ducted propeller and realize the motivation provided a new idea for propeller design.

scholarly journals Calculation of Three-Dimensional Unteady Sheet Cavitation by a Simple Surface Panel Method

2000 ◽  
Vol 2000 (188) ◽  
pp. 91-103 ◽  
Author(s):  
Jun Ando ◽  
Takashi Kanemaru ◽  
Kunihide Ohashi ◽  
Kuniharu Nakatake
Keyword(s):  
Three Dimensional ◽  
Panel Method ◽  
Surface Panel Method ◽  
Sheet Cavitation ◽  
Simple Surface

An Improved Lifting Line Model for the Design of Marine Propellers

2006 ◽  
Vol 43 (02) ◽  
pp. 100-113
Author(s):  
Fahri Celik ◽  
Mesut Guner
Keyword(s):  
Autonomous Underwater Vehicle ◽  
Cfd Analysis ◽  
Vortex System ◽  
Marine Propellers ◽  
Propeller Design ◽  
Trailing Vortices ◽  
Realistic Representation ◽  
Computational Fluid Dynamics Cfd ◽  
Volume Method ◽  
Lifting Line

This paper describes a procedure for the design of marine propellers where more realistic representation of the slipstream shape by the trailing vortex system is taken into account. The slipstream shape behind the propeller is allowed to deform and to align with the direction of local velocity, which is obtained by the sum of the inflow velocity and induced velocities due to the trailing vortices. In classical lifting line approaches, that deformation is neglected. Applications for an autonomous underwater vehicle (AUV) and a fishing vessel are carried out to demonstrate propeller design and the effect of the slipstream contraction. Furthermore, a computational fluid dynamics (CFD) analysis based on the finite volume method and experimental validation of the method are carried out for the propellers. CFD analysis and experimental results are compared with the results obtained from present method.

A New Approach to Lifting Line Theory: Hub and Duct Effects

2006 ◽  
Vol 50 (02) ◽  
pp. 138-146
Author(s):  
Victor G. Mishkevich
Keyword(s):  
Mathematical Model ◽  
Singular Integrals ◽  
Jacobi Polynomials ◽  
New Approach ◽  
Improve Design ◽  
Propeller Design ◽  
Line Theory ◽  
Circulation Distribution ◽  
Lifting Line ◽  
Lifting Line Theory

This paper deals with a new approach to lifting line theory in which the presence of a hub and/or duct is taken into account by introducing the generalized induction factors. The proposed mathematical model is built on the assumption that the hub and/or duct are simulated with infinite cylinders. The circulation distribution function is represented in the form of a series of orthogonal Jacobi polynomials that covers all cases that can occur in practical propeller design, including both zero and nonzero gap conditions. The integral equation of the lifting line theory is solved numerically by applying the highest accuracy quadrature formula for singular integrals. Propellers with optimum and arbitrary circulation distribution are considered. The proposed theory is intended to improve design of the near hub and duct blade sections, cavitation control, and integral propeller characteristics. Numerical results are presented for the purpose of comparison with different methods and to illustrate the developed approach.

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