该文利用点源或线源所影响的势函数分布规律,结合计算流体力学中外部绕流的特点,发展了一种直接提供背景信息的方法,用来控制非结构网格生成过程中的网格分布;并且通过对部分点源或线源的影响势函数施加方向控制开关,使所生成的网格按期望的规律分布.使用证明,该文方法是一种有效、快速的处理方法,与传统用背景网格提供背景信息的方法相比,在计算量、程序量、光滑性和灵活性方面都能表现出良好的品质.“,”Our method utilizes the potential induced by point and line sources, which, for a given configuration, are so placed that the potential induced by the sources is large where more grids are expected. We are often only interested in grids in several directions, so we add control parameters to some sources so that more grids are formed in these directions. As used in this paper, the present method has following advantages compared with the usually employed background grid approach: (1) the grids generated by t...