A Rapid Computational Model for Estimating the Performance of Compliant Airfoils in Cascades

Abstract

We consider the problem of designing the blades in a turbomachine to have a specific schedule of structural stiffness in order to achieve more favorable aerothermodynamic performance characteristics than is possible with rigid blades. This problem of 'aerothermodynamic tailoring' is extremely complex because of the need to couple the flow computation over a deformable surface with the structural dynamics computation. In this report an analysis is presented which accomplishes this objective by means of a two-dimensional incompressible potential flow model using vortex sheet representation of the blades. Details of the analysis and of the resulting computer program together with representative results are described

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1992
Accession Number
ADA266275

Entities

People

  • F. Sisto
  • M. Avila

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aerodynamic Loading
  • Aeroelasticity
  • Bending Moments
  • Classification
  • Computational Fluid Dynamics
  • Computational Science
  • Computer Programs
  • Equations
  • Flow
  • Fluid Dynamics
  • Geometry
  • Integral Equations
  • Leading Edges
  • Mechanics
  • Security
  • Trailing Edges
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Life Cycle Cost Analysis
  • Structural Dynamics.