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基于紊流整体流动模型和 Ｍｏｏｄｙ 壁面摩擦系数方程，简化了大间隙环流三维流场非线性偏微分控制方程组，推导了零阶摄动方程，并采用数值方法对大间隙环流中偏心转子静特性进行了深入研究．实例计算结果表明：大间隙环流中转子与以轴承和密封为代表的小间隙环流中转子的静特性有很大不同；壁面摩擦系数沿周向变化；同时转子和静子壁面粗糙度以及偏心率对大间隙环流中转子静特性有较大的影响
Based on the turbulent global flow model and the Moody wall friction coefficient equation, the nonlinear partial differential equations governing the three-dimensional flow field in a large-gap circular flow are simplified and the zeroth-order perturbation equations are deduced. The static characteristics of the eccentric rotor Conducted in-depth study. The calculation results of the examples show that the static characteristics of the rotor in the large-gap circular flow and the small-gap circular flow represented by the bearing and the seal are quite different. The friction coefficient of the wall varies along the circumference. At the same time, the surface roughness and eccentricity of the rotor and stator Large gap circulation in the rotor static characteristics have a greater impact