Optimal Design of Inlet Passage for Waterjet Propulsion System Based on Flow and Geometric Parameters

Table 1

Basic geometrical parameters of the inlet passage.

Geometric parameter	Value	Geometric parameter	Value
Outlet diameter of the inlet passage D0	220 mm	Diameter of the impeller shaft D1	30 mm
L1	0.68D0	L2	0.68D0
L3	0.68D0	L4	1.36D0
L5	2.27D0	L6	1.14D0
L7	2.59D0	L8	0.36D0
L9	0.40D0	L10	0.85D0
Dip angle of the inlet passage α	23°