next up previous contents
Next: 8.4.1 The reformed model Up: 8. Critical Slow Plunger Previous: 8.3.4 EKK's model (numerical

8.4 The Reformed Model

The hydraulic jump appears in steady-state and unsteady-state situations. The hydraulic jump also appears when using different cross-sections, such as square, circular, and trapezoidal shapes. The hydraulic jump can be moving or stationary. The ``wave'' in the shot sleeve is a moving hydraulic jump in a circular cross-section. For this analysis, it does not matter if the jump is moving or not. The most important thing to understand is that a large portion of the energy is lost and that this cannot be neglected. All the fluid mechanics books20show that Garber's formulation is not acceptable and a different approach has to be employed. Today, the solution is available to die casters in a form of a computer program - DiePerfect.


Genick Bar-Meir |||
copyright Dec , 2006

The pdf version is also available here