Water inlet blowdown
Abstract
A new blowdown system was developed for cleaning debris from the inlet grill of waterjet propulsion system on Boeing hydrofoil boats. A system was required to work with existing waterjet ducts which are open ended. The new blowdown system consists of an abrupt discharge of high pressure compressed air amidst the water inlet duct. It utilizes the open end of the propulsor discharge nozzle as a safety valve. Feasibility was proven by semi-steady state equations and was confirmed by full scale testing. A system was developed and installed and is now fully operational.
- Publication:
-
AIAA, Astrodynamics Specialist Conference
- Pub Date:
- September 1981
- Bibcode:
- 1981aiaa.confV....T
- Keywords:
-
- Debris;
- Engine Inlets;
- Hydraulic Jets;
- Hydrofoils;
- Compressed Air;
- Ducted Flow;
- Full Scale Tests;
- Systems Engineering;
- Engineering (General)