摘要
分析了船体兴波作用对推进性能的影响,提出将兴波计算从自航船模流场计算中分离的简化计算模型,并研究了船模预报实船自航点和推进因子的数值方法,同时对KCS缩尺船模推进性能进行了预报,预报结果与试验吻合较好.通过对6条不同缩尺比的KCS自航船模的计算,分析了尺度效应对推进性能预报的影响.
The prediction of propulsion factors of propelled ship model is an integrative problem that involves calculations on ship-propeller and air-water two phases viscous flow field.Based on the analysis of the influence of the wave making on the propulsion factors,a simplification numerical model to calculate the propulsion factors of self-propulsion ship model is presented,in which the wave making simulation is separated form the calculation on the flow field of the propelled ship model.The numerical methods for predicting the self-propulsion point and propulsion factors of full scale ship by ship model are studied,and the propulsion performance of scaled KCS ship model under experimental condition is numerically calculated by the methods;the numerical results are in good agreement with experiment data.The influence of the scale effect on propulsion factors prediction is studied by the calculation on 6 different KCS scaled propelled models with different scaled ratios.And some meaningful conclusions are drawn.
出处
《武汉理工大学学报（交通科学与工程版）》
2011年第4期670-674,共5页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
基金
上海交通大学船舶与海洋工程国家重点实验室基金项目资助(批准号:20101003)
关键词
自航船模
伴流分数
推力减额分数
自航点
尺度效应
CFD方法
propelled ship model
wake fraction
thrust deduction fraction
self-propulsion point
scale effect
CFD
