Numerical Investigation of Transitional and Turbulent Axisymmetric Wakes at Supersonic Speeds

Abstract

A numerical method has been developed for solving the complete compressible Navier Stokes equations. The method was used to investigate the time dependent behavior of disturbances in the laminar and turbulent near wake of axisymmetric bluff bodies and their influence on and interaction with the global flow field. The equations are solved in a cylindrical coordinate system using finite difference approximations of fourth-order accuracy in space and time. Direct Numerical Simulations (DNS) were performed for a subsonic free stream Mach number of M to infinity = 0.2 and for supersonic free stream Mach numbers of M to infinity = 1.2 and M to infinity = 2.46.

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Document Details

Document Type
Technical Report
Publication Date
Jan 21, 1998
Accession Number
ADA344183

Entities

People

  • Dietmar Tourbier
  • Hermann Fasel

Organizations

  • University of Arizona

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Birds
  • Boundary Layer
  • Computational Fluid Dynamics
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Hydrodynamics
  • Large Eddy Simulation
  • Mechanical Properties
  • Mechanics
  • Physics Laboratories
  • Pressure Distribution
  • Reynolds Number
  • Steady Flow
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Statistical inference.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Boundary Layers
  • Hypersonics - Hypersonic Flow
  • Space
  • Space - Hall-Effect Thruster
  • Space - Spacecraft Maneuvers