Time Integration of Unsteady Transonic Flow to a Steady State Solution by the Finite Element Method.

Abstract

A finite element method was applied to the unsteady transonic small disturbance equation and integrated until the solution converged to the steady state for a thin nonlifting airfoil. The method of weighted residuals was used to formulate the finite element equations and Houbolt's method of central differencing in time was used to integrate these equations. A secondary investigation applied the steady transonic small disturbance equations to a converging-diverging nozzle. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1977
Accession Number
ADA039790

Entities

People

  • Raymond John Nichols Jr

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Counter IED
  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Weapons Technologies

DTIC Thesaurus Topics

  • Assembly
  • Boundaries
  • Computer Programs
  • Computers
  • Engineering
  • Equations
  • Finite Element Analysis
  • Flow
  • Fluid Flow
  • Geometry
  • Mach Number
  • Plastic Explosives
  • Residuals
  • Steady Flow
  • Steady State
  • Transonic Flow
  • Unsteady Flow

Fields of Study

  • Physics

Readers

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