Problem Description

The problem considers the cavitation caused by the flow separation after a sharp-edged orifice. The flow is pressure driven, with an inlet pressure of 5 $\times$ 10 $^5$ ${\rm Pa}$ and an outlet pressure of 9.5 $\times$ 10 $^4$ ${\rm Pa}$. The orifice diameter is 4 $\times$ 10 $^{-3}$ ${\rm m}$, and the geometrical parameters of the orifice are D/d = 2.88 and L/r = 8, where D, d, and L are the inlet diameter, orifice diameter, and orifice length respectively. The geometry of the orifice is shown in Figure  19.1.

Figure 19.1: Problem Schematic