Optimal Control Techniques for Computing Stationary Flows of Viscoelastic Fluids.

Abstract

This document considers the problem of computing the stationary flows of a viscoelastic fluid flowing through a given domain. The proposed numerical method is based on optimal control techniques, which replace the original equations ofthe problem by a minimization problem to be solved by a descent method. Such techniques are very powerful and can handle equations which change type, provided that, as done here, one uses an adequate preconditioning strategy and that one computes efficiently the gradient of the function to be minimized. Keywords: Viscoelastic flow; Least Squares Method; Equations; Finite element analysis. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1985
Accession Number
ADA160993

Entities

People

  • Patrick Le Tallec

Organizations

  • University of Wisconsin–Madison

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Algorithms
  • Computations
  • Contracts
  • Differential Equations
  • Equations
  • Equations Of State
  • Finite Element Analysis
  • Functional Analysis
  • Hydrostatic Pressure
  • Mathematics
  • Numerical Analysis
  • Smoothing (Mathematics)
  • Standards
  • Stationary
  • Stratified Fluids
  • Two Dimensional
  • United States

Fields of Study

  • Engineering
  • Mathematics

Readers

  • Fluid Dynamics.
  • Operations Research
  • Systems Analysis and Design