摘要
[目的]豪华邮轮的型线优化设计,除了要考虑美学视角因素,更重要的是还要考虑在整个航行阶段都能满足绿色节能、安全舒适等方面的要求,其中针对多航速船舶阻力性能优化进行豪华邮轮的船型设计尤为重要。[方法]首先,基于自主开发的船型优化设计软件OPTShip-SJTU,以某豪华邮轮为原始船型,通过自由变形方法,对船艏、水线、船艉等位置进行局部变形;然后,通过基于Neumann-Michell(NM)势流理论的兴波阻力求解器NMShip-SJTU进行阻力评估,并结合优化算法得到不同航速下兴波阻力系数最优的船型;最后,采用经过广泛验证的高精度黏流求解器naoe-FOAM-SJTU对优化船型做进一步验证。[结果]结果显示,基于NM势流理论的兴波阻力优化可以得到多航速下总阻力性能更优的船型,相比基于黏流CFD评估进行优化,更高效,且得到的优化船型在2个航速下总阻力分别降低了0.65%和0.98%。[结论]研究表明,基于数值模拟的船型优化设计流程可以应用于豪华邮轮的阻力性能优化。
[Objectives]For the hull line optimization design of luxury cruise ships,except for its aesthetic needs,it is of utmost important for the design and optimization of the hull form to be able to acquire resistance performance throughout the whole sailing period at variable speeds.This is in line with today's requirements of energy saving,safety and comfort features.[Methods]Based on the in-house hull form optimization design software OPTShip-SJTU,a luxury cruise ship is regarded as the initial hull to reduce its wave-making resistance at variable speeds.The hull form deformation is then implemented by the free-form deformation(FFD)method and the resistance evaluation is carried out by the Neumann-Michell(NM)potential-flow-based solver NMShip-SJTU to obtain the optimal hulls using optimization algorithms.Finally,the optimal hulls set at two specified speeds are then chosen for further analysis using the viscous-flow-based solver naoe-FOAM-SJTU in order to verify that the optimal hulls do have better total resistance performances at the two specified speeds.[Results]Results show that using NMShip-SJTU solver to do the optimization is more efficient and the two optimal hulls having a 0.65%and 0.98%total drag reduction respectively.[Conclusions]The research indicates that the simulation-based hull form optimization process can be applied in the optimization of resistance and even comprehensive performances for the luxury cruise ships.
作者
刘鑫旺
万德成
LIU Xinwang;WAN Decheng(School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Computational Marine Hydrodynamics Lab(CMHL),Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《中国舰船研究》
CSCD
北大核心
2020年第5期1-10,40,共11页
Chinese Journal of Ship Research
基金
国家自然科学基金资助项目(51809169,51879159)
国家重点研发计划资助项目(2019YFB1704200,2019YFC0312400)
长江学者奖励计划(T2014099)
上海市优秀学术带头人计划(17XD1402300)
工信部高技术船舶“大型邮轮创新专项”和“中型邮轮设计建造关键技术研究”项目资助。
