Theoretical and Experimental Supersonic Lateral-Directional Stability Characteristics,

Abstract

A program has been initiated at NASA Langley Research Center to assess several methods for estimation of lateral-directional stability. As a basis for comparison, experimental data are presented for a simple wing-body vertical tail configuration. The methods for estimating the characteristics include a second-order shock expansion and panel method (MISLIFT), a slender body and 'first-order' panel method (APAS), and a 'higher-order' panel method for linearized supersonic flow (PAN AIR). The results show that PAN AIR provides accurate estimates of these characteristics at moderate angles of attack for complete configurations with either single or twin vertical tails. APAS will provide estimates for complete configurations at zero angle of attack. However, MISLIFT will only provide estimates for the simplest body-vertical tail configurations at zero angle of attack. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 14, 1981
Accession Number
ADA111768

Entities

People

  • James L. Thomas
  • Milton Lamb
  • Wallace C. Sawyer

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Agreements
  • Bodies
  • Computational Science
  • Directional
  • Dynamic Pressure
  • Experimental Data
  • Fineness Ratio
  • Flow
  • Fluid Dynamics
  • Free Stream
  • Geometry
  • Mach Number
  • Slender Bodies
  • Supersonic Flow
  • Trailing Edges

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Statistical inference.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow