Practical Considerations of Water Jet Propulsion

The basic elements of water jet propulsion are developed with an approach (somewhat analogous to the momentum concepts of compressible aerodynamics) which eliminates some inconsistencies of actuator-disc theory. The expressions derived form a simple analytical model, and provide not only a rational basis for experimental verification, but a basis for comparative evaluation between differing methods of water propulsion.

Experimental data from water jet propulsors, conventional propellers, and super-cavitating propellers are included to indicate the state-of-the-art; and to emphasize regimes where advancement is required to up date current technology