Numerical Simulation of the Interaction of a Vortex with Stationary Airfoil in Transonic Flow,

Abstract

A perturbation form of an implicit conservative, noniterative numerical algorithm for the two-dimensional thin layer Navier-Stokes and Euler equations is used to computer the interaction flow field of a vortex with stationary airfoil. A Lamb-like analytical vortex having a finite core is chosen to interact with a thick (NACA 0012) and a thin (NACA 64A006) airfoil independently in transonic flow. Two different configurations of vortex interaction are studied: (1) when the vortex is fixed at one location in the flow field; and (2) when the vortex is convecting past the airfoil at free stream velocity. Parallel computations of this interacting flow field are also done using a version of the Transonic Small Disturbance Code (ATRAN2). A special treatment of the leading edge region for thin airfoils is included in this code. With this, the three methods gave qualitatively similar results for the weaker interactions considered in this study. However, the strongest interactions considered proved to be beyond the capabilities of the small disturbance code.

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Document Details

Document Type
Technical Report
Publication Date
Jan 12, 1984
Accession Number
ADA159596

Entities

People

  • G. R. Srinivasan
  • P. Kutler
  • W. J. Mccroskey

Organizations

  • Ames Research Center

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Compressible Flow
  • Computational Fluid Dynamics
  • Computational Science
  • Differential Equations
  • Equations
  • Euler Equations
  • Flow Fields
  • Fluid Dynamics
  • Fluid Flow
  • Free Stream
  • Helicopter Rotors
  • Hydrodynamics
  • Inviscid Flow
  • Navier Stokes Equations
  • Pressure Distribution
  • Viscous Flow

Fields of Study

  • Physics

Readers

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