FINAL PROGRESS REPORT ON CONTRACT N7onr-35805 (Brown Univ)

Abstract

Theoretical studies were started on the blocking effects in the transonic range. Investigations were made of a flexible nozzle and a variable supersonic diffuser which would permit low pressure-ratio starting of supersonic test sections. The wind tunnel was provided with a flexible nozzle fabricated from laminations of plywood. Results of a test series employing 3 geometrically similar 2-dimensional wings of relatively high blocking area were compared with data obtained with the same models in a solid-wall test section. From this, the importance and practicability of the slotted-wall model section was established for the subsonic portion of the transonic regime. Results of a test program executed at subsonic speeds to investigate the mixing process between the main stream and the flow through the performations checked well with the proposed theory.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1953
Accession Number
AD0013364

Entities

People

  • Gordon F. Anderson

Organizations

  • Brown University

Tags

Communities of Interest

  • Human Systems
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Boundaries
  • Contracts
  • Engineering
  • Mach Number
  • Mechanical Engineering
  • Military Research
  • Models
  • National Security
  • Rhode Island
  • Students
  • Supersonic Diffusers
  • Supersonic Wind Tunnels
  • Two Dimensional
  • United States
  • Universities
  • Wind Tunnel Tests
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Combustion and Flow Dynamics.
  • Technical Research and Report Writing.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow