Level-set based topology optimization of transient flow using lattice Boltzmann method considering an oscillating flow condition

Truong Nguyen, Hiroshi Isakari, Toru Takahashi, Kentaro Yaji, Masato Yoshino, Toshiro Matsumoto

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Topology optimization is widely applied to various design problems in both structure and fluid dynamics engineering. Specifically, the development of energy dissipation devices with vibration control remains a key consideration. The aim of this study is to improve devices that maximize the absorption or dissipation of the vibration of an oscillating object and propose an approach in which the level set based topology optimization of transient flow using the lattice Boltzmann method is simultaneously applied to forward and reverse direction flows to deal with oscillating flows in real-world engineering designs. Although several studies have examined topology optimization to minimize dissipated kinetic energy, this study introduces an objective function for maximizing the dissipated kinetic energy in time-varying fluid flows via velocity gradients.

Original languageEnglish
Pages (from-to)82-108
Number of pages27
JournalComputers and Mathematics with Applications
Volume80
Issue number1
DOIs
Publication statusPublished - 2020 Jul 1
Externally publishedYes

Keywords

  • Dissipated kinetic energy
  • Lattice Boltzmann method
  • Level set method
  • Oscillating transient flow
  • Topology optimization

ASJC Scopus subject areas

  • Modelling and Simulation
  • Computational Theory and Mathematics
  • Computational Mathematics

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