文献类型：期刊文献

中文题名：基于大涡模拟的大型水面舰船复杂风场数值模拟

英文题名：Numerical Simulation on Wind Field of Large Surface Warship Based on Large Eddy Simulation

作者：张大朋[1];严谨[1];赵博文[2];侯玲[1];朱克强[3]

机构：[1]广东海洋大学船舶与海运学院,广东湛江524088;[2]浙江大学海洋学院,浙江舟山316021;[3]宁波大学海运学院,浙江宁波315211

年份：2023

卷号：45

期号：6

起止页码：52

中文期刊名：船舶工程

外文期刊名：Ship Engineering

收录：CSTPCD、、CSCD_E2023_2024、北大核心、CSCD、北大核心2020

基金：广东海洋大学科研启动经费资助项目(060302072101);广东省促进经济高质量发展专项(粤融办函[2020]161号);广东省促进经济高质量发展专项资金(海洋经济发展)(GDARC[2021]56)。

语种：中文

中文关键词：大型水面舰船;风载荷;大涡模拟

外文关键词：large surface warship;wind load;large eddy simulation

中文摘要：基于大涡模拟LES和雷诺时均N-S方程RANS对不同风舷角下的大型水面舰船风场进行数值模拟,并采用Isherwood经验公式对其风载荷进行计算。将数值模拟结果与经验公式进行对比,验证LES和RANS二者对大型水面舰船风载荷预报的适用性。同时,对比分析基于LES法与RANS法模拟得到的不同风舷角下大型水面舰船的风场特性。研究结果表明:采用数值模拟法能获得合理的数值预报结果,而Isherwood法在部分风舷角下的适应性较差;采用LES法和RANS法得到的表面风压、流线和速度场差异不大,而涡结构差异较大;LES法能较好地捕捉到大尺度漩涡破碎生成小尺度漩涡,而RANS法仅能捕捉到少量长条结构的大尺度漩涡和涡鼓包。

外文摘要：The wind field of large surface warship under different wind side angles is studied based on LES and RANS methods.At the same time,the Isherwood empirical formula is used to calculate the wind load.The numerical simulation results are compared with the empirical formula to investigate the applicability of numerical simulation and empirical formula to the prediction of large surface warship wind load.The results show that the numerical simulation method can obtain reasonable numerical prediction results,while the Isherwood method has poor adaptability under some wind side angles.Meanwhile,the wind field characteristics of large surface warships under different wind side angles are compared and analyzed based on LES method and RANS method.The results show that the surface wind pressure,streamline and velocity fields obtained by LES method and RANS are not different,but the vortex structure is different.LES well captured the large-scale vortex breaking into small-scale vortices,while RANS only captured a small number of large-scale vortices and vortex bulges with long strip structure.The conclusion of this paper has a certain reference value for the study of large surface warship wind field.