Turbulent Sensitivity Analysis for Enhancing Future Aircraft

Abstract

The sensitivity-equation method has been extended to accommodate three-dimensional, unstructured mesh topologies. The method is developed and demonstrated for inviscid, laminar and the two-equation turbulence models. Performance is enhanced by implementing a MPI parallel capability as well as a graphical user interface. For all cases, solutions to the linear sensitivity equations require less than 10% of the computational time required to solve the non-linear flow problem. A central-difference utility is developed to assess the accuracy of the SEM results. The product is developed with the goal of being compatible with any flow solver --whether structured or unstructured --as part of a larger design environment.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2003
Accession Number
ADA427833

Entities

People

  • Andrew G. Godfrey

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Aircrafts
  • Boundary Layer
  • C Programming Language
  • Computational Fluid Dynamics
  • Computational Science
  • Computer Programming
  • Differential Equations
  • Equations
  • Fluid Dynamics
  • Graphical User Interface
  • Operating Systems
  • Partial Differential Equations
  • Turbulence
  • Turbulent Flow
  • Turbulent Mixing
  • User Interface

Fields of Study

  • Physics

Readers

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