Discharge Coefficients and Internal Flow Fields of Small Drilled Throat Nozzles used in Fluid Amplifiers.

Abstract

Discharge coefficient and related transonic flow field properties are examined for conical convergent - divergent nozzles with small (.05 in.) drilled out throat section. Half angles are 30 degrees for convergent section and 15 degrees for the divergent section. A sharp edge throat nozzle is used as a reference configuration. Air at ambient temperature and stagnation pressures from 50 to 1000 psia is the working medium. Measured discharge coefficient data is presented. Color Schlieren images and results obtained from an axisymmetric transonic program are, also, presented. Transonic flow field phenomena are qualitatively compared with measured discharge data. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 15, 1974
Accession Number
AD0779464

Entities

People

  • John P. Leonard

Organizations

  • United States Army Aviation and Missile Command

Tags

DTIC Thesaurus Topics

  • Amplifiers
  • Coefficients
  • Convergent Divergent Nozzles
  • Flow
  • Flow Fields
  • Fluidic Amplifiers
  • Nozzles
  • Stagnation Pressure
  • Transonic Flow

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Fluid Dynamics.