船体三维厚边界层理论计算  

Calculation of thick three dimensional boundary layer on ship hulls

作　　者：王言英[1] 龙敬华 

机构地区：[1]大连理工大学船舶工程系 [2]大连船舶工业公司(集团)

出　　处：《大连理工大学学报》1992年第3期310-320,共11页Journal of Dalian University of Technology

基　　金：国家自然科学基金资助项目

摘　　要：将描述船体粘性绕流的完整的Ｎａｖｉｅｒ－Ｓｔｏｋｅｓ方程简化为部分抛物线模式，辅以Ｃｏｌｅｓ速度剖面和Ｈｅａｄ渗入方程，应用流线坐标系中的积分－差分算法，求解绕船体三维边界层的流动参数。对于船模ＳＳＰＡ ７２０的考核计算表明，自船首９０％的船长范围内，有关边界层参数的计算结果同相应测试值符合得令人满意。本文为船体粘压阻力与近尾流场计算提供了一个有效的数值方法。A numerical approach of determining flow parameters of thick three dimensional boundary layer on ship hulls is presented by using the partly-parabolic mode of simplified Navier-Stokes equations with Coles velocity profiles and Head entrainment equation and with orthogonal curvelinear coordinates and the integral-differential computation. The results of calculation for SSPA Model 720 show that relevant parameters of boundary layer on hull surface have a good a greement with corresponding measurements from model test and this approach can be applied to determining viscous-pressure resistance of ship hull and to computing flow parameters of wake flow field on ship stern.

关 键 词：粘滞流 边界层 船体 阻力 

分 类 号：U661.311[交通运输工程—船舶及航道工程]