基于CFD的Series60船艏型线自动优化

Automatic Optimization of Bow Lines of Series60 Ship Based on CFD

在基于仿真的设计(SBD)方法的指导思想下,提出了基于CFD的船型自动优化方法以实现船型自动优化。该方法主要由径向基函数插值技术实现船体曲面自动变形的变形模块和水动力计算模块组成,水动力计算由CFD-SHIPFLOW软件实现。以Series60船舶的兴波阻力最小为优化目标,利用该方法实现了其船艏型线的自动优化。优化结果表明:对于Series60船型,在满足工程约束的条件下,基于CFD的船体曲面自动优化方法可以获得阻力降低的新船型。

Under the guidance based on the simulation design( SBD) method,an automatic hull form optimization method based on CFD is proposed to realize automatic hull form optimization. The method is mainly composed of the deformation module using the radial basis function interpolation technique to realize the automatic deformation of the hull and the hydrodynamic calculation module,the hydrodynamic calculation module is realized by CFD SHIPFLOW software. Taking the minimum wave making resistance of Series60 ship as the optimization objective,the method is used to realize the automatic optimization of the bow line. The optimization results show that a new ship type with reduced resistance can be obtained by the automatic optimization method of hull surface based on CFD for the Series60 hull type under the conditions of engineering constraints.