The hydraulic jump (‘‘shocks’’ and viscous flow in the kitchen sink)
The hydraulic jump (‘‘shocks’’ and viscous flow in the kitchen sink)
复制标题
水力跳跃（厨房水槽中的“冲击”和粘性流）
DOI：
10.1119/1.17413
复制
发表时间：
1993
影响因子：
0.9
通讯作者：
R. Godwin
中科院分区：
文献类型：
--
作者：
R. Godwin
讨论了水槽中水跃的径向位置和水流间断。强调了粘度在确定跳跃位置时的重要性。模型强调了下沉表面附近粘性流动的重要性，使我们能够预测作为粘度、重力和流速的函数的跳跃半径和跳跃上下游两侧的水流深度。在我们的近似处理中，跳跃位置与重力无关，与粘度的立方根成反比。
The radial location and flow discontinuity of the hydraulic jump in a sink are discussed. The importance of viscosity in determining the location of the jump is emphasized. A model, which highlights the importance of viscous flow near the sink surface, allows us to predict the jump radius and the flow depth on the upstream and downstream sides of the jump as functions of viscosity, gravity, and flow velocity. In our approximate treatment, the jump location is independent of gravity and inversely proportional to the cube root of the viscosity.