一种数值求解船体兴波阻力的三因次RANS方法（英文）  

Numerical Calculation of Hull Wave-making Resistance by Three-dimensional RANS Method

作　　者：胡俊明[1] 李铁骊[1] 蒋晓宁 林焰[1] 徐雪锋 HU Jun-ming;LI Tie-li;JIANG Xiao-ning;LIN Yan;XU Xue-feng(School of Naval Architecture and Ocean Engineering,Dalian University of Technology,Dalian 116024,China;Department Directly under the Naval Equipment Department,Beijing 100841,China)

机构地区：[1]大连理工大学船舶工程学院,辽宁大连116024 [2]海军装备部直属工作部,北京100841

出　　处：《船舶力学》2018年第9期1047-1062,共16页Journal of Ship Mechanics

基　　金：Supported by the National Research Program for High Technology Ship Development(No.MIIT 2014-498);the Science and Technology Project of Guangdong Province(2016B090918092);the Marine Renewable Energy Special Fund(QDME2013ZB01)

摘　　要：文章根据船体阻力成因和分类提出一种基于三因次RANS求解船体兴波阻力的数值计算方法,与基于势流理论的Rankine源法和EFD法相比较,结果表明此方法得到的兴波阻力数值精度高于Rankine源法,与EFD法吻合较好,形状因子(1+K)值在不同傅汝德数下存在略微差异,船首和两侧的自由面波峰值大于Rankine源法所得值,波谷值却相反,自由面波形变化趋势与Rankine源法吻合一致,随着傅汝德数增加开尔文波系愈发明显且波峰后移,计算方法具有实用性。According to the cause and classification of hull resistance,a three-dimensional RANS method is proposed to solve hull wave-making resistance.Compared with Rankine source method which is on the basis of potential flow theory,it is turned out that this proposed method is of higher numerical accuracy in solving wave-making resistance,and its result shows good agreement with EFD method.The values of shape factor(1+K)at different Froude numbers are basically the same,with slight deviation.The values of wave crest on the bow and sides are bigger than those obtained by Rankine source method,while the values of wave trough are opposite.Changing tendency of wave profile agrees with that of Rankine source method,and as the increase of Froude number,the Kelvin wave system is becoming more obvious and the wave crest moves backwards.The three-dimensional RANS method is proved to be appropriate for engineering application.

关 键 词：三因次RANS法 Rankine源法 1+K 兴波阻力 兴波波形 

分 类 号：U661.3[交通运输工程—船舶及航道工程]