RESEARCH ON ANNULAR NOZZLE TYPE GROUND EFFECT MACHINE OPERATING OVER WATER: NONUNIFORMITY OF JET MOMENTUM

Abstract

A limited number of experiments indicate that the jet momentum is nonuniformly distributed around the periphery of a ground effect machine operating over water. An attempt is made to correlate the distribution of jet momentum with the water surface configuration under the machine and with the wake pattern created by the machine. The theoretical solutions for the wave resistance that acts on a moving pressure area are discussed. The data presented in this paper indicate that this wave resistance does not have to be transmitted to the ground effect machine. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 31, 1962
Accession Number
AD0283039

Entities

People

  • Gunnar Sigurdsson

Organizations

  • University of California, Berkeley

Tags

DTIC Thesaurus Topics

  • Annular Nozzles
  • Boundaries
  • Ground Effect
  • Ground Effect Machines
  • Momentum
  • Nozzles
  • Pressure Distribution
  • Resistance

Fields of Study

  • Physics

Readers

  • Computational Linguistics
  • Fluid Mechanics and Fluid Dynamics.
  • Radar Systems Engineering.