Ship hull form design and optimization based on CFD

2015 ◽  
pp. 235-244
Keyword(s):  
Ship Hull ◽  
Hull Form ◽  
Design And Optimization ◽  
Form Design ◽  
Hull Form Design

Geometrical Variation and Distortion of Ship Hull Forms

2003 ◽  
Vol 40 (04) ◽  
pp. 239-248
Author(s):  
Ebru Narh ◽  
Kadir Sariöz
Keyword(s):  
Computer Aided Design ◽  
Ship Hull ◽  
Hydrodynamic Performance ◽  
Hull Form ◽  
Nonlinear Distortions ◽  
Form Design ◽  
Hull Form Design ◽  
Geometrical Variation ◽  
Hull Forms ◽  
Aided Design

Because of the risk involved with starting the hull form design from scratch, the designer most frequently initiates the hull form design process with a parent form that has satisfactory hydrodynamic performance. Hence, linear and nonlinear variation and distortion techniques have found wide applications in the hull form design studies. Some of these methods are simple and easy to apply by practicing naval architects, whereas others may be considered too complicated and difficult to use without simplifications. Existing and emerging techniques to distort a parent ship hull form are discussed and applied to a typical ship form. These techniques range from a simple one minus prismatic method to complex nonlinear distortions and include emerging computer-aided design (CAD) methods, such as shape averaging. The applications indicate that the techniques presented can be safely applied to conventional ship hull forms. The advantages and drawbacks of these methods are discussed, and numerical results are presented.

scholarly journals Fundamental Studies on Ship Hull Form Design by Means of Nonlinear Programming (2nd Report)

1981 ◽  
Vol 1981 (150) ◽  
pp. 49-55 ◽  
Author(s):  
Kazuo Suzuki ◽  
Mitsuhisa Ikehata ◽  
Michinosuke Higuchi ◽  
Osamu Kanagawa
Keyword(s):  
Nonlinear Programming ◽  
Ship Hull ◽  
Hull Form ◽  
Form Design ◽  
Hull Form Design

Rapid Estimation of Near-and Far-Field Wave Wake from Ships and Application to Hull Form Design and Optimization

2001 ◽  
Vol 45 (01) ◽  
pp. 73-84
Author(s):  
Alexander H. Day ◽  
Lawrence J. Doctors
Keyword(s):  
Wave Height ◽  
Building Blocks ◽  
Preliminary Design ◽  
Hull Form ◽  
Design And Optimization ◽  
Form Design ◽  
Hull Form Design ◽  
Hull Forms ◽  
And Storage ◽  
Field Wave

A method is presented by which the wave wake generated by a ship may be repeatedly calculated very rapidly. The method is based on linear thin-ship theory, using the idea of elemental tent functions as building blocks to represent the hull, which have previously been applied in the context of resistance minimization. This approach allows much of the calculation to be carried out in advance, with the results stored in a database. Issues of convergence, accuracy, and storage strategy are discussed. In order to demonstrate the application of the approach to preliminary design optimization, an illustrative study is carried out in which hull forms for monohull and catamaran vessels are optimized in the sense of minimizing the maximal wave height along a series of longitudinal cuts. The effect of the transverse location of the cuts on the resulting hull forms is found to be quite substantial, especially for the catamarans; the performance of the vessels optimized to reduce wave height at one transverse location may be quite suboptimal at another location, illustrating the difficulty of choosing an appropriate specification for low-wash vessels.

Hull Form Design

2011 ◽  
pp. 313-336
Author(s):  
A. F. Molland ◽  
S. R. Turnock ◽  
D. A. Hudson
Keyword(s):  
Hull Form ◽  
Form Design ◽  
Hull Form Design
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