写像平面で渦の移動を行う写像離散渦法 : 平行制約壁を伴うせん断層の挙動の解析

概要

論文の詳細を見る
A numerical analysis of a plane shear layer between two parallel walls is made by using an improved discrete vortex method combined with the conformal mapping method. In the proposed method, each vortex is convected not in the physical z-plane, but in the transformed ζ-Plane by taking its own timescale into consideration. In the conventional method, the inversetransformation of the location of each convected vortex is generally indispensable for analyzing a flow field. In a case such that the inversetrasformation cannot be obtained analytically, a numerical iteration Should be relied upon, resulting in a decrease in accuracy. In this paper, therefore, a new method that does not require the inversetransformation is proposed in order to ease the application of the discrete vortex method with the conformal mapping to more complicated flows.
一般社団法人日本機械学会の論文
1992-03-25