Analysis of Supersonic Flow Past Oscillating Cascades Using Linear and Nonlinear Methods.

Abstract

This study presents two methods of analysis for the supersonic oscillating cascade with subsonic leading edge. A relatively straightforward solution is developed for the slowly oscillating finite and infinite flat-plate cascades which provides simple analytical expressions for the unsteady pressure distributions. Comparison with other solutions is generally excellent. Some additional linear topics including resonance and a unique inflow condition are also treated. In addition a nonlinear method of charcteristics solution for finite cascades is described which permits analysis of blade thickness effects on flutter. At this time, only the inlet and passage flow computations have been completed and are compared with available experimental data. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1977
Accession Number
ADA053211

Entities

People

  • Joseph Anthony Strada

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aeronautics
  • Computational Fluid Dynamics
  • Computational Science
  • Computations
  • Computer Programs
  • Engineering
  • Equations
  • Experimental Data
  • Fluid Dynamics
  • Geometry
  • Leading Edges
  • Mathematics
  • Method Of Characteristics
  • Operating Systems
  • Pressure Distribution
  • Schools
  • Thickness

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Control Systems Engineering.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)

Technology Areas

  • Hypersonics