RADIATION RESISTANT FLIGHT CONTROL SYSTEMS

Abstract

Results of wat r-tunnel tests on the base-vented hydrofoil model show that the lift and moment coefficients and the lift coefficient derivative are all esse ti lly independent of ventilation number and are approximately equal to coefficient of uncamb red airfoils having th sam aspect ratio. HE DR G COEFFICIENT AGREED ONLY PARTIALLY WIT TWO-DIMENSIONAL CAVITY DRAG THEORY. The aximum lift-to-drag ratio w s 6.5 when fully vented and 2.4 wh n fully wetted. Due to the reduced blockage of the Free S URFACE Water Tu nel at the C ALIFORNIA Institute of Technology, t e minimum ventilation number (K) was 0.02 and the minimum air-flow rate coefficient (Q'cr provi i g full ventilatio was 0.026 ( RATE INCR ASING AND ). ! RAT CR ASING). (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 20, 1962
Accession Number
AD0292307

Entities

People

  • L. Roth

Tags

DTIC Thesaurus Topics

  • Air Flow
  • Airfoils
  • Aspect Ratio
  • Coefficients
  • Control Surfaces
  • Control Systems
  • Flight Control Systems
  • Flow
  • Flow Rate
  • Hydrofoils
  • Radiation
  • Two Dimensional
  • Ventilation

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Marine Propulsion Engineering and Naval Architecture
  • Snow Cover Descriptors for Reptiles and Their Illustrations.