NDLI: Geometric modelling of bulbous bows with the use of non-uniform rational B-spline surfaces

Content Provider	Springer Nature Link
Author	Pérez, Francisco Suárez, José A. Clemente, Juan A. Souto, Antonio
Copyright Year	2007
Abstract	Nowadays, bulbous bow forms have become a common design feature in most conventional ship designs. The design of a bulbous bow is usually attempted with the use of certain form parameters that are imposed using the designer's experience or regression values that provide the optimum parameters based on experimental tests or computational fluid dynamics (CFD) calculations. In this article, the geometric modelling of a bulbous bow form that complies with a series of parameters is presented. First, a wire model was constructed with cubic B-spline curves that hold certain form parameters that the designer wants to impose. Second, a B-spline surface that fits these splines was mathematically constructed. A review of the influence of the design parameters used on the bulbous bow properties was made. This method could be used prior to numerical optimization of a bulbous bow because different variations of the design can be easily generated. These variations can be tested numerically using CFD software. A practical application example of the method is shown.
Starting Page	83
Ending Page	94
Page Count	12
File Format	PDF
ISSN	09484280
Journal	Journal of Marine Science and Technology
Volume Number	12
Issue Number	2
e-ISSN	14378213
Language	English
Publisher	Springer-Verlag
Publisher Date	2007-06-15
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Bulbous bow NURBS B-splines Ship design Hull form expression Automotive and Aerospace Engineering, Traffic Engineering Fluid Dynamics Engineering Design Offshore Engineering Mechanical Engineering
Content Type	Text
Resource Type	Article
Subject	Oceanography Ocean Engineering Mechanics of Materials Mechanical Engineering

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