THEORETICAL OPTIMIZATION OF A WATER-AUGMENTED TURBOFAN MARINE PROPULSION SYSTEM.

Abstract

This paper presents a theoretical investigation of a water-augmented turbofan engine, one in which large quantities of sea water are injected into the fan duct section. Results indicate that up to three or four times dry thrust and propulsive efficiency are obtained depending on vessel speed, fan pressure ratio, and amount of water injected. Optimum water injection velocity is investigated. Deviations from thermal and dynamic equilibrium in the mixing processes are investigated with respect to their effect on overall performance. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1968
Accession Number
AD0835596

Entities

People

  • Thomas Clifford Knudson

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Efficiency
  • Engineering
  • Engines
  • Marine Propulsion
  • Mechanical Engineering
  • Optimization
  • Propulsion Systems
  • Sea Water
  • Thermal Propulsion Systems
  • Turbofan Engines
  • Water

Readers

  • Aerodynamics.
  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Mechanical Engineering/Mechanics of Materials.