limited clearance

Based on the theoretical model developed by us, the zero and first order perturbation equations of 3D non linear partial differential equations of the motion of concentric rotor in finite length large gap annular flow are derived and solved by means of numerical method.

基于作者建立的大间隙环流中转子运动理论模型 ,用摄动法推导了有限长大间隙环流流场非线性控制方程的零阶和一阶摄动方程 ,研究了摄动方程的数值求解方法 ,并用该数值方法深入研究了有限长大间隙环流中同心转子的动特性系数以及壁面粗糙度、入口压力、长径比和入口预旋等参数的影响 。