Some Effects of Vehicle Flow Field on the Capture Efficiency of a Gerdien Capacitor Atmospheric Probe.

Abstract

Wind tunnel tests of a rocket borne upper atmospheric probe for measuring atmospheric charge density are reported. The Gerdien capacitor probe consists of a short section of a co-axial capacitor. This is mounted on pylons from a model of the Tomahawk vehicle. Results are reported for the mach number range 2 to 3 and altitude range 26 to 50 km. Over this range the ratio of mass flow through the probe to mass flow in an equal cross section of the free stream ranged from .69 to .80. Schlieren photographs of the flow are presented. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1978
Accession Number
ADA067710

Entities

People

  • Charles W. Haldeman
  • Robert H. Bush
  • Scott W. Prey

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Altitude
  • Boundary Layer
  • Flow
  • Flow Fields
  • Free Stream
  • Mach Number
  • Mass Flow
  • Measurement
  • Pressure Transducers
  • Reynolds Number
  • Scale Models
  • Shock Waves
  • Standing Waves
  • Static Pressure
  • Turbulent Mixing
  • Wind Tunnel Tests
  • Wind Tunnels

Readers

  • Aerodynamics/Aeronautics.
  • Astronomy and Astrophysics.
  • Electrochemical Surface Science