Shape optimization of the stokes flow problem based on isogeometric analysis

Byong-Ug Park, Yu-Deok Seo, Ole Sigmund, Sung-Kie Youn

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Design-dependent loads related to boundary shape, such as pressure and convection loads, have been a challenging issue in optimization. Isogeometric analysis, where the analysis model has smooth boundaries described by spline functions can handle design-dependent loads with ease. In the present study, shape optimization based on isogeometric analysis is applied to the Stokes flow problems
such as minimizing energy dissipation and drag force. The drag force objective is based on accurate integration of boundary pressures. Local control point insertion schemes are employed for accurate representation of geometry in an adaptive manner.
Original languageEnglish
JournalStructural and Multidisciplinary Optimization
Volume48
Pages (from-to)965-977
ISSN1615-147X
DOIs
Publication statusPublished - 2013

Keywords

  • Isogeometric analysis
  • Shape optimization
  • Stokes flow
  • Design-dependent load

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