TY - JOUR
T1 - Level-set based topology optimization of transient flow using lattice Boltzmann method considering an oscillating flow condition
AU - Nguyen, Truong
AU - Isakari, Hiroshi
AU - Takahashi, Toru
AU - Yaji, Kentaro
AU - Yoshino, Masato
AU - Matsumoto, Toshiro
N1 - Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2020/7/1
Y1 - 2020/7/1
N2 - 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.
AB - 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.
KW - Dissipated kinetic energy
KW - Lattice Boltzmann method
KW - Level set method
KW - Oscillating transient flow
KW - Topology optimization
UR - http://www.scopus.com/inward/record.url?scp=85082513550&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85082513550&partnerID=8YFLogxK
U2 - 10.1016/j.camwa.2020.03.003
DO - 10.1016/j.camwa.2020.03.003
M3 - Article
AN - SCOPUS:85082513550
VL - 80
SP - 82
EP - 108
JO - Computers and Mathematics with Applications
JF - Computers and Mathematics with Applications
SN - 0898-1221
IS - 1
ER -