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Citation:
　Shahid Mahmood and Debo Huang.Computational Fluid Dynamics Based Bulbous Bow Optimization Using a Genetic Algorithm[J].Journal of Marine Science and Application,2012,(3):286-294.[doi:10.1007/s11804-012-1134-1]
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Computational Fluid Dynamics Based Bulbous Bow Optimization Using a Genetic Algorithm

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Title:
Computational Fluid Dynamics Based Bulbous Bow Optimization Using a Genetic Algorithm
Author(s):
Shahid Mahmood and Debo Huang
Affilations:
Author(s):
Shahid Mahmood and Debo Huang
Multihull Ship Technology, Key Laboratory of Fundamental Science for National Defence, Harbin Engineering University, Harbin 150001, China
Keywords:
bulbous bow;  genetic algorithm;  computational fluid dynamics (CFD);  total resistance
分类号:
-
DOI:
10.1007/s11804-012-1134-1
Abstract:
Computational fluid dynamics (CFD) plays a major role in predicting the flow behavior of a ship. With the development of fast computers and robust CFD software, CFD has become an important tool for designers and engineers in the ship industry. In this paper, the hull form of a ship was optimized for total resistance using CFD as a calculation tool and a genetic algorithm as an optimization tool. CFD based optimization consists of major steps involving automatic generation of geometry based on design parameters, automatic generation of mesh, automatic analysis of fluid flow to calculate the required objective/cost function, and finally an optimization tool to evaluate the cost for optimization. In this paper, integration of a genetic algorithm program, written in MATLAB, was carried out with the geometry and meshing software GAMBIT and CFD analysis software FLUENT. Different geometries of additive bulbous bow were incorporated in the original hull based on design parameters. These design variables were optimized to achieve a minimum cost function of “total resistance”. Integration of a genetic algorithm with CFD tools proves to be effective for hull form optimization.

References:

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Last Update: 2012-09-05