Accession Number:

AD0781916

Title:

Optimization of Waterjet Propulsion Systems for Surface Effect Ships,

Descriptive Note:

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF OCEAN ENGINEERING

Personal Author(s):

• Carmichael,A. Douglas
• Johanek,William R.

Report Date:

1974-05-01

Pagination or Media Count:

69.0

Abstract:

Water-jet propulsion systems using flush inlets suitable for use on surface effect ships are studied. Equations are developed and incorporated into a computer program which optimizes the system on a least total weight basis. Resistance, displacement, range, speed and other data are used to calculate total propulsion system weight for a number of jet velocity ratios. The system utilizes marine gas turbine engines coupled to multi-stage axial-flow pumps. Variable area flush inlets and constant area nozzles are used. Results for a 2000 ton vessel are presented.

Descriptors:

• *Surface effect ships
• *Hydraulic jets
• *Marine propulsion
• Propulsion systems
• Mathematical models
• Computer programming
• Optimization
• Gas turbines
• Pumps
• Axial flow
• Nozzles
• FORTRAN
• Inlets

Subject Categories:

• Marine Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE