Energy Efficiency of Sea and Air Vehicles.

Abstract

A reassessment of overall technical performance parameters of naval vehicles leads to the definition of specific energy as a measure of vehicle efficiency. Specific energy is an energy efficiency equal to the product of transport efficiency and Froude number. In terms of specific energy, the empirical performance data for fluidborne vehicles converge to yield systematic trends with Froude number for fully-immersed buoyant vehicles, surface ships, and dynamic-lift vehicles. Specific energy appears to be a new consistent basis for comparing the overall technical efficiency of past, present and future naval vehicles. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 30, 1978
Accession Number
ADA089594

Entities

People

  • David A. Jewell

Organizations

  • United States Coast Guard Academy

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aircraft Industry
  • Aircrafts
  • Airframes
  • Birds
  • Boats
  • Engineers
  • Ground Effect Machines
  • Hydrofoils
  • Marine Transportation
  • Naval Architecture
  • Navy
  • Patrol Gunboat Hydrofoils
  • Ships
  • Spacecraft
  • Surface Effect Ships
  • Surface Effect Vehicles
  • Transport Aircraft

Fields of Study

  • Engineering

Readers

  • Marine Hydrodynamics
  • Theoretical Analysis.