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一、液体在工作轮中的运动及速度三角形液体在工作轮中的运动为一复杂的空间流动。为了研究方便,假定液体在工作轮中的流动是轴对称的。即在相应的流线上(所谓流线即液体质点的运动轨迹)位于同一圆周各液体质点的相对速度W大小相同,与圆周之间的夹角β相等,也就是液体质点的运动轨迹和叶片形状相同。这种流动状态,实际上只有当叶片数目无限多,叶片厚度无限薄时才可能实现。
First, the liquid in the work of the wheel movement and speed Triangle liquid in the work of the wheel movement for a complex space flow. For the sake of convenience, it is assumed that the flow of liquid in the working wheel is axisymmetric. That is, the relative velocity W of the liquid particles in the same streamline (the so-called streamline, that is, the trajectory of the liquid particles) are the same in size and equal to the angle β between the circles, that is, the trajectories of the liquid particles and the vanes The same shape. This flow state, in fact, is only possible when the number of blades is infinite and the blade thickness is infinite.