Topology optimization method for a conceptual design management of microchannel heatsinks

• Project/Area Number: 16H06935
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Design engineering/Machine functional elements/Tribology
• Research Institution: Osaka University
• Principal Investigator: Yaji Kentaro 大阪大学, 工学研究科, 助教 (90779373)
• Project Period (FY): 2016-08-26 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000); Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: トポロジー最適化 / 最適設計 / 設計工学 / 流体力学 / 構造最適化 / 数値流体力学 / ヒートシンク / 大規模並列計算 / 流体 / マイクロチャンネル

Outline of Final Research Achievements

Microchannel heatsink has been attracted attention as a next generation cooling device. The aim of this study is to generate innovative designs of microchannel heatsink via utilizing a topology optimization method. The optimization problem is formulated as multiobjective problem of the total heat transfer and the pressure loss that are important evaluation indices for the design of microchannel heatsinks. In addition, I utilize a large-scale parallel computer for generating a lot of design candidates and revealing the detailed configuration of optimized designs.

Research Products

• [Journal Article] Large-scale topology optimization incorporating local-in-time adjoint-based method for unsteady thermal-fluid problem (2018)
  • Author(s): Yaji, K., Ogino, M., Nishiwaki, S., and Fujita, K.
  • Journal Title: Structural and Multidisciplinary Optimization Volume: － Issue: 2 Pages: 817-822
  • DOI: 10.1007/s00158-018-1922-6
  • Peer Reviewed / Open Access
• [Journal Article] Topology optimization for the design of flow fields in a redox flow battery (2018)
  • Author(s): Kentaro Yaji, Shintaro Yamasaki, Shohji Tsushima, Takahiro Suzuki, Kikuo Fujita
  • Journal Title: Structural and Multidisciplinary Optimization Volume: 57 Issue: 2 Pages: 535-546
  • DOI: 10.1007/s00158-017-1763-8
  • Peer Reviewed
• [Presentation] Topology design via physics-based surrogate optimization for complex fluid problems (2018)
  • Author(s): Kentaro Yaji, Shintaro Yamasaki, Kikuo Fujita
  • Organizer: 7th European Conference on Computational Fluid Dynamics
  • Int'l Joint Research
• [Presentation] Topology design via physics-based surrogate optimization for turbulent heat transfer (2018)
  • Author(s): Kentaro Yaji, Shintaro Yamasaki, Kikuo Fujita
  • Organizer: Asian Congress of Structural and Multidisciplinary Optimization 2018
  • Int'l Joint Research
• [Presentation] Optimum channel design of a redox flow battery via topology optimization (2017)
  • Author(s): Kentaro Yaji, Shintaro Yamasaki, Shohji Tsushima, Takahiro Suzuki, Kikuo Fujita
  • Organizer: 12th World Congress on Structural and Multidisciplinary Optimization
  • Int'l Joint Research
• [Presentation] 三次元非定常熱流体を対象とした大規模トポロジー最適化 (2017)
  • Author(s): 矢地謙太郎, 荻野正雄, 陳聰, 藤田喜久雄
  • Organizer: 日本機械学会 第30回計算力学講演会
• [Presentation] レドックスフロー電池を対象とした二次元流動場モデルに基づくトポロジー最適設計 (2017)
  • Author(s): 矢地謙太郎, 山﨑慎太郎, 津島将司, 鈴木崇弘, 藤田喜久雄
  • Organizer: 日本機械学会 第27回設計工学・システム部門講演会
• [Presentation] 流体問題を対象とした大規模トポロジー最適化 (2016)
  • Author(s): 矢地謙太郎、荻野正雄、西脇眞二、藤田喜久雄
  • Organizer: 日本機械学会 第26回設計工学・システム部門講演会
  • Place of Presentation: 慶應義塾大学日吉キャンパス（神奈川県・横浜市）
  • Year and Date: 2016-10-08