基于艏艉全参数建模及自航计算的线型优化

Hull Line Optimization Based on Parametric Modeling of Fore and Aft Bodies and Self-propulsion Calculation

以一艘散货船为例,介绍基于艏艉全参数建模和计算流体力学(Computational Fluid Dynamics,CFD)自航计算的线型优化方法。对艏艉进行参数化建模与变换,通过CFD进行船体阻力计算和自航计算,最终优化得到满足总体性能和轮机布置要求且螺旋桨收到功率最小的船体参数化模型。

Taking a bulk carrier as the example,this paper introduces the hull line optimization method based on the fully parametric modeling of fore and aft bodies and the self-propulsion computation using CFD(Computational Fluid Dynamics).The parametric models of fore and aft bodies are created and transformed.The computations of hull resistances and selfpropulsion are carried out with CFD to finally obtain the optimal parametric model that has the lowest propeller received power and satisfies the general performance requirements.