Three-Dimensional Laminar Boundary-Layer Analysis of Upwash Patterns and Entrained Vortex Formation on Sharp Cones at Angle of Attack.

Abstract

Application of three-dimensional inviscid and viscous (laminar boundary layer) analyses for cold wall hypersonic flows over sharp cones at incidence is presented relative to experimental data, showing surface upwash angles and entrained vortex formation leading to crossflow-induced boundary- layer transition. Three-dimensional neutral inviscid stability theory for stationary disturbances is used to calculate the angular orientation of the entrained vortices in the boundary layer while a maximum crossflow Reynolds number concept is applied for correlation of the onset to vortex formation due to crossflow instability.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1971
Accession Number
AD0736880

Entities

People

  • John C. Adams Jr.

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Boundary Layer Control
  • Boundary Layer Flow
  • Boundary Layer Transition
  • Computational Fluid Dynamics
  • Computational Science
  • Experimental Data
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Geometry
  • Hypersonic Flow
  • Inviscid Flow
  • Laminar Boundary Layer
  • Reynolds Number
  • Standing Waves
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Boundary Layers
  • Hypersonics - Hypersonic Flow