CFD数值分析三体船片体位置对阻力及兴波干扰影响  

CFD prediction of influence of position of trimaran on drag and wave-making interference

作　　者：李响[1] 刘志强[1] 万德成[1] LI Xiang;LIU Zhiqiang;WAN Decheng(Computational Marine Hydrodynamics Lab(CMHL),School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学船海计算水动力学研究中心(CMHL)船舶海洋与建筑工程学院,上海200240

出　　处：《海洋工程》2022年第6期76-82,共7页The Ocean Engineering

基　　金：国家自然科学基金资助项目(52131102,51879159);国家重点研发计划资助项目(2019YFB1704200)。

摘　　要：三体船的水动力性能是目前水动力学研究的热门。对于中高速三体船来说,其静水阻力的很大一部分由兴波阻力构成,而对于兴波最大的影响因素就是片体位置的布局。以一艘圆舭型三体船为研究对象,运用黏流计算流体力学(CFD)方法模拟分析4种不同片体位置对三体船静水阻力和兴波干扰的影响。数值计算采用自主研发的黏流CFD求解器naoe-FOAM-SJTU。数值预报得到三体船静水阻力结果与模型试验结果吻合较好,验证了当前CFD方法预报三体船阻力的可靠性。通过不同片体位置三体船阻力计算发现,方案4的船型方案阻力最优,且通过细节的主片体间兴波干扰流场的结果给出了不同片体布置方案对三体船阻力和兴波的影响。The hydrodynamic performance of trimaran is a hot topic in hydrodynamic research.For a medium-high speed trimaran,a large part of its static water resistance is composed of wave-making resistance,and the most important factor for wave-making is the layout of the body position.In this research,a round bilge-type trimaran was taken as the research object,and viscous CFD method was used to simulate and analyze the effects of 4 different plate positions on the static water resistance and wave-making interference of trimaran.The viscous flow CFD solver naoe-Foam-SJTU developed by the research group was used for numerical calculation.The hydrostatic resistance of the trimaran obtained by numerical prediction is in good agreement with the model test results,which verifies the reliability of the current CFD method for predicting trimaran resistance.Through the calculation of the resistance of trimaran ship with different positions of the pieces,it is found that the resistance of scheme 4 is the best,and the influence of different arrangements of the bodies on the resistance and wave generation of trimaran ship is given through the detailed results of the flow field of wave interference between the bodies.

关 键 词：三体船 片体位置 静水阻力 CFD方法 兴波干扰 

分 类 号：O357[理学—流体力学]