Direct Numerical Simulation of Supersonic Turbulent Ramp and Step Flow

Abstract

Direct numerical simulations of compressible fluid flow are performed for subsonic and supersonic channel flow with two symmetrically backward facing steps and for a supersonic compression ramp flow field. Spatial derivatives are represented by a central scheme of high order difference operators (N=2,4,6,8,...) that is used together with artificial dissipation of order N. A two-step Richtmyer scheme is employed for time integration. In regions with steep gradients flux-corrected transport (FCT) according to Boris and Book is applied. Preliminary results are presented for Mach number 1.5 in case of the channel flow and further results for Mach number 2.84 in case of the ramp with a ramp angle of 24 degrees.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2001
Accession Number
ADP013666

Entities

People

  • I. Klutchnikov
  • J. Ballmann

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Channel Flow
  • Computational Fluid Dynamics
  • Computational Science
  • Equations
  • Euler Equations
  • Flow
  • Flow Fields
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Large Eddy Simulation
  • Mach Number
  • Mathematical Models
  • Reynolds Number
  • Simulations
  • Supersonic Flow

Fields of Study

  • Physics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Fluid Mechanics and Fluid Dynamics.

Technology Areas

  • Hypersonics