OPTIMUM AIRFOILS AT MODERATE SUPERSONIC SPEEDS. PART 2. MINIMUM DRAG,

Abstract

Minimum drag airfoils at moderate supersonic speeds are determined using second-order theory. Two cases are investigated under the assumption that the length is prescribed: (a) given thickness and (b) given enclosed area. If the thickness is given, the minimum drag airfoil is a diamond shape. If the enclosed area is given, the minimum drag airfoil is biconvex. In both cases, the maximum thickness occurs in the rear half of the airfoil; while, if the linear theory is employed, it occurs exactly at midchord. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1968
Accession Number
AD0825505

Entities

People

  • Angelo Miele
  • John C. Heideman

Organizations

  • Rice University

Tags

DTIC Thesaurus Topics

  • Geometry
  • Mathematics
  • Physical Properties
  • Thickness

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Fluid Mechanics and Fluid Dynamics.

Technology Areas

  • Hypersonics