第２部門④

[2B25-30-04] Density-based topology optimization for unsteady thermal-fluid problems

*Keisuke Takaara¹, Hiroya Hoshiba¹, Shinsuke Takase², Koji Nishiguchi¹, Junji Kato¹ (1. Nagoya University, 2. Hachinohe Institute of Technology)

Keywords:topology optimization, thermal-fluid problem, unsteady state

As regards thermal-fluid topology optimization problems, many beneficial results have been reported. However, only a few studies have considered the unsteady state thermal-fluid problem. In actual design problems, there are lots of cases in which temporal changes in temperature distribution are important rather than steady-state. In this study, the framework of a density-based topology optimization method for the unsteady thermal-fluid problem is proposed. The design sensitivity is computed accurately based on the adjoint variable method. The numerical analysis shows that the proposed framework captures the transient effect correctly and the results of optimization are physically reliable.