摘要
运用流体分析软件ANSYS-CFX对带球鼻艏的方尾型船模进行数值模拟,计算了弗劳德数在[0.174,0.232]中9个不同航速下的阻力值,并将数值模拟结果与船模实验结果进行对比,结果表明:弗劳德数Fr为0.174时,最大误差为2.15%;弗劳德数Fr为0.232时,最小误差为0.26%,平均误差为0.91%。最后,对各航速下流场、压力场和自由液面进行了对比分析。分析表明:计算流体动力学CFD技术能够模拟船模绕流场,捕捉流场的局部细节和特征,较好地反映船舶的阻力特性。
ANSYS-CFX is used to do numerical simulations of a ship model.The total resistance values of nine different speeds are obtained.Numerical simulation results are compared with experimental data.The results show that the maximum error is 2.15%(Fr=0.174)and the minimum error is 0.26%(Fr=0.232),while the average error is 0.9%.Flow field,pressure field and free surface of different speed are also analyzed.It can be seen that the CFD method can precisely forecast the resistance characteristics of ship model by simulating the viscous flow field and capturing the wave details of the air-water free surface.
作者
于苏楠
潘华辰
田晓庆
赖祥华
YU Sunan;PAN Huachen;TIAN Xiaoqing;LAI Xianghua(School of Mechanical Engineering,Hangzhou Dianzi University,Hangzhou Zhejiang 310018,China;Yangfan Group Co.Ltd.,Zhoushan Zhejiang 316100,China)
出处
《杭州电子科技大学学报（自然科学版）》
2018年第1期75-80,共6页
Journal of Hangzhou Dianzi University：Natural Sciences
基金
浙江省自然科学基金青年基金资助项目(LQ17E090007)
