Continuum Shape Sensitivity Analysis with Spatial Gradient Reconstruction for Fluid-Structure Interaction

Abstract

Research was performed to develop a computational method to calculate the sensitivity of aeroelastic response with respect to changes in vehicle shape, which facilitates efficient design optimization of high-fidelity, aeroelastic models. Continuum sensitivity analysis (CSA) was implemented in a nonintrusive manner to enable use of black-box (commercial) solvers for nonlinear fluid-structure interaction (FSI) analysis. Accuracy of this CSA boundary velocity formulation was ensured through spatial gradient reconstruction (SGR), while avoiding the need to differentiate the FSI Jacobian matrices.

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Document Details

Document Type
Technical Report
Publication Date
Apr 24, 2019
Accession Number
AD1085958

Entities

People

  • Robert A Canfield

Organizations

  • Virginia Tech

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Air Force Research Laboratories
  • Availability
  • Boundaries
  • Classification
  • Computational Fluid Dynamics
  • Computer Programs
  • Contracts
  • Convergence
  • Department Of Defense
  • Fluid Dynamics
  • Governments
  • Information Operations
  • Instructions
  • Scientific Research
  • Sensitivity

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Computational Modeling and Simulation
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)