SLENDER BODIES OF MINIMUM DRAG IN HYPERSONIC VISCOUS FLOW.

Abstract

Hypersonic viscous flow about slender cones, wedges, and 3/4 power law bodies is considered. Body thickness ratios leading to minimum drag are determined subject to constraints of fixed base, fixed volume, or fixed surface area. It is assumed that the shocks are strong and that the fluid is ideal. It is found that minimum drag occurs in a flow region where viscous interaction and, for axisymmetric bodies, transverse curvature must be taken into account. Numerical results are given for optimum thickness ratio and minimum drag as a function of altitude. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1969
Accession Number
AD0700035

Entities

People

  • Harold Mirels
  • John W. Ellinwood

Organizations

  • The Aerospace Corporation

Tags

DTIC Thesaurus Topics

  • Altitude
  • Axisymmetric
  • Bodies
  • Curvature
  • Flow
  • Geometric Forms
  • Geometry
  • Lines (Geometry)
  • Slender Bodies
  • Thickness
  • Transverse
  • Viscous Flow

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Boundary Layers