具有任意给定压力分布形式的三维机翼数值设计  

Numerical design of the three-dimensional wing with a given pressure distribution form

作　　者：苏玉民[1] 陈玉霞[1] 

机构地区：[1]哈尔滨工程大学船舶工程学院,黑龙江哈尔滨150001

出　　处：《海洋工程》2003年第1期1-6,共6页The Ocean Engineering

摘　　要：利用一种数值迭代方法设计具有任意给定的升力系数和压力分布形式的三维机翼。方法中对于一定的目标压力分布,取一初始机翼,并由基于速度势的面元法计算三维机翼的流体动力性能,逐次改变初始机翼某一点的形状,计算由此引起的压力分布的增量,形成Jacobian行列式,由目标压力分布与初始机翼的压力分布的差修改初始机翼,重复这一过程得到具有目标压力分布的机翼。再由该机翼升力系数与给定升力系数的差修改目标压力分布,重新设计机翼,最后迭代得到符合设计要求的三维机翼。The threedimensional wing with a specified lift coefficient and pressure distribution form is designed by using a numerical method. The surface panel method is used to determine the hydrodynamic characteristics of the wing. A pressure distribution with a specified form is taken as the initial target pressure distribution. The geometry of an original wing is changed in a small range and the pressure increment due to this change is calculated. From the difference between the pressure distribution of the original wing and the initial target pressure distribution, the geometrical correctors are derived. The original wing is modified to form a new one. By iterative calculation the wing having the initial target pressure distribution is designed. Correcting the initial target pressure distribution with a specified lift coefficient and repeating this procedure, we can finally obtain the wing having a specified lift coefficient and pressure distribution form. Several wings are designed as examples.

关 键 词：三维机翼 面元法 压力分布 升力系数 数值迭代方法 厚度比 船舶 

分 类 号：U661.313[交通运输工程—船舶及航道工程]