In case of axis plane velocity and circumferential velocity distribute in linear along the radius of an impeller, with the specific values of axis plane velocity and circumferential velocity, axis plane velocity and circumferential velocity will be calculated by the elementary equation of axial flow pump.
假设轴面速度和周向速度沿叶轮半径方向线性分布,给定在轮毂处的轴面速度和周向速度值,根据轴流泵的基本方程式求出轴面速度和周向速度的速度梯度。