Prediction of Thrust-Deduction and Wake Fractions for Twin-Screw Destroyers.

Abstract

This work describes the development of a technique for predicting the propulsion coefficients from hull-form parameters. The two propulsive coefficients used at DTNSRDC and included in this study are the thrust-deduction fraction (t) and the thrust-wake fraction (wT). A prediction method has been derived from data on sixty-five experiments on model hulls representing a variety of twin-screw destroyers. Examples show that the prediction models provide fair results within the range of data represented. Additional work is recommended to develop an improved prediction method. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1980
Accession Number
ADA092449

Entities

People

  • David W Taylor
  • Rae B. Hurwitz

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Buoyancy
  • Computer Programs
  • Equations
  • Froude Number
  • Geometry
  • Hulls (Marine)
  • Mathematical Models
  • Naval Architecture
  • Numbers
  • Plastic Explosives
  • Propellers
  • Regression Analysis
  • Reynolds Number
  • Square Roots
  • Statistical Analysis
  • Statistics
  • Water

Readers

  • Computational Modeling and Simulation
  • Marine Hydrodynamics
  • Mathematics or Statistics