控制垂直切片流出角和收缩系数的主要变量如图1所示。深度B可以是自由表面或刚性边界。如果上边界倾斜，如果b/b比接近1，倾斜角度可能会影响流出。图2显示了流出角，作为相对下唇延伸和几何比b/b的函数。图3是确定收缩系数的配对图。图4提供了理论流出角和实验室实验报告数据之间的比较。 这些信息显示在图中。2和3是针对非粘性理想流体推导的，可用于预测水中稀释纤维悬浮液的高速流出，前提是重力和表面张力的影响很小，且流动在几倍于切片开口b的距离内畅通无阻。

The primary variables which govern the angle of outflow and contraction coefficient for a vertical slice are shown in Fig. 1. The depth B may be to a free surface or to a rigid boundary. If this upper boundary is inclined, the angle of inclination may influence the outflow if the ratio b/B is near unity. Fig. 2 shows the angle of outflow, as a function of the relative bottom lip extension and the geometric ratio b/B. Fig. 3 is a companion chart for determining the contraction coefficient. Fig. 4 provides a comparison between the theoretical angle of outflow and data reported from laboratory experiments. The information presented in Figs. 2 and 3 was derived for a nonviscous, ideal fluid and can be used to predict high velocity outflows of dilute fiber suspensions in water, provided that the effects of gravity and surface tension are small and the flow is unobstructed for a distance of several times the slice opening b.