Publications

1. 喜井大誠, 今村和輝, 津本燎, 山﨑慎太郎, 矢地謙太郎, 藤田喜久雄. 機能性と意匠性を兼備するトレッドパターンに向けたデータ駆動型最適化計算による設計法. 設計工学, Vol. **, p. **, 2024 (in press).

2. Zhang P., Sheil B., Girolami M., Yaji K., and Yin Z. A novel consolidation analysis framework: Universal function approximators regularized by physical principles. Canadian Geotechnical Journal, Vol. **, p. **, 2024 (in press).

3. Kii T., Yaji K., Fujita K., Zhenghui S., and Seepersad C.C. Latent crossover for data-driven multifidelity topology design. Journal of Mechanical Design, Vol.**, No.**, p.**, 2024. DOI: 10.1115/1.4064979

4. Tanabe Y., Yaji K., and Ushijima K. Topology optimization using the lattice Boltzmann method for unsteady natural convection problems. Structural and Multidisciplinary Optimization, Vol. 66, No. 103, 2023. DOI: 10.1007/s00158-023-03522-y

5. Yodono T., Yaji K., Yamada T., Furuta K., Izui K., and Nishiwaki S. Topology optimization for the elastic field using the lattice Boltzmann method. Computers and Mathematics with Applications, Vol. 110, pp. 123–134, 2021. DOI: 10.1016/j.camwa.2022.01.032

6. Yaji K., Yamasaki S., and Fujita K. Data-driven multifidelity topology design using a deep generative model: Application to forced convection heat transfer problems, Computer Methods in Applied Mechanics and Engineering, Vol. 388, No. 3, p. 114284, 2022. DOI: 10.1016/j.cma.2021.114284

7. Dong X., Yaji K., and Liu X. Optimum design of micromixer for a non-Newtonian fluid by topology optimization. Chemical Engineering Journal, Vol. 428, p. 131367, 2022. DOI: 10.1016/j.cej.2021.131367

8. Kubo S., Koguchi A., Yaji K., Yamada T., Izui K., and Nishiwaki S.,  Level set-based topology optimization for two dimensional turbulent flow using an immersed boundary method, Journal of Computational Physics, Vol. 446, p. 110630, 2021. DOI: 10.1016/j.jcp.2021.110630

9. Xie S., Yaji K., Takahashi T., Isakari H., Yoshino M., and Matsumoto T. Topology optimization of Navier-Stokes flow using lattice kinetic scheme. Computers and Mathematics with Applications, Vol. 97, pp. 251–266, 2021. DOI: 10.1016/j.camwa.2021.05.032

10. Sakashita M., Yamasaki S., Yaji K., Kawamoto A., and Kondo S. Three-dimensional topology optimization model to simulate variation in bone external shapes. PLOS  Computational Biology,  Vol. 17, No. 6, p. e1009043, 2021. DOI: 10.1371/journal.pcbi.1009043

11. Yamasaki S., Yaji K., and Fujita K. Data-driven topology design using a deep generative model. Structural and Multidisciplinary Optimization, Vol. 64, No. 3, pp. 1401–1420, 2021. DOI: 10.1007/s00158-021-02926-y

12. 丸山峻, 山﨑慎太郎, 矢地謙太郎, 藤田喜久雄. 構造形態と外部変数の統合的最適化によるノイズフィルタの素子・導体レイアウト設計. 日本計算工学会論文集, Vol. 2021, p. 20210007, 2021.

13. Kobayashi H., Yaji K., Yamasaki S., and Fujita K. Topology design of two-fluid heat exchange. Structural and Multidisciplinary Optimization,  Vol. 63, No. 2, pp. 821–834, 2021. DOI: 10.1007/s00158-020-02736-8

14. Maruyama S., Yamasaki S., Yaji K., and Fujita K. Topology optimization incorporating external variables with metamodeling. Structural and Multidisciplinary Optimization, Vol. 62, pp. 2455–2466, 2020. DOI: 10.1007/s00158-020-02616-1

15. Nguyen T., Isakari H., Takahashi T., Yaji K., Yoshino M., and Matsumoto T. Level-set based topology optimization of transient flow using lattice Boltzmann method considering oscillating flow condition. Computers and Mathematics with Applications, Vol. 80, No. 1, pp. 82–108, 2020. DOI: 10.1016/j.camwa.2020.03.003

16. Yaji K., Yamasaki S., and Fujita K. Multifidelity design guided by topology optimization. Structural and Multidisciplinary Optimization, Vol. 61, No. 3, pp. 1071–1085, 2020. DOI: 10.1007/s00158-019-02406-4

17. Chen C., Yaji K., Yamasaki S., Tsushima S., and Fujita K. Computational design of flow fields for vanadium redox flow batteries via topology optimization. Journal of Energy Storage, Vol. 26, p. 100990, 2019. DOI: 10.1016/j.est.2019.100990

18. Kobayashi H., Yaji K., Yamasaki S., and Fujita K. Freeform winglet design of fin-and-tube heat exchangers guided by topology optimization. Applied Thermal Engineering, Vol. 161, p. 114020, 2019. DOI: 10.1016/j.applthermaleng.2019.114020

19. 野村勝也, 高橋篤弘, 小島崇, 山﨑慎太郎, 矢地謙太郎, 坊大貴, 藤田喜久雄. トポロジー最適化を用いたノイズフィルタにおける支配的なノイズの低減. 電子情報通信学会論文誌B, Vol. J102-B, No. 8, pp. 669–673, 2019.

20. 古口睦士, 矢地謙太郎, 山田崇恭, 泉井一浩, 西脇眞二. レベルセット法に基づく埋め込み境界法を用いた非定常の非圧縮性粘性流れのトポロジー最適化. 日本機械学会論文集, Vol. 85, No. 873, pp. 18–00423, 2019.

21. Nomura K., Yamasaki S., Yaji K., Bo H., Takahashi A., Kojima T., and Fujita K. Topology optimization of conductors in electrical circuit. Structural and Multidisciplinary Optimization, Vol. 59, No. 6, pp. 2205–2225, 2019. DOI: 10.1007/s00158-018-02187-2

22. Yamasaki S., Yaji K., and Fujita K. Knowledge discovery in databases for determining formulation in topology optimization. Structural and Multidisciplinary Optimization, Vol. 59, No. 2, pp. 595–611, 2019. DOI: 10.1007/s00158-018-2086-0

23. Nomura K., Kondoh T., Ishikawa T., Yamasaki S., Yaji K., and Fujita K. Doping profile optimization for power devices using topology optimization. IEEE Transactions on Electron Devices, Vol. 65, No. 9, pp. 3869–3877, 2018. DOI: 10.1109/TED.2018.2854637

24. Yaji K., Ogino M., Chen C., and Fujita K. Large-scale topology optimization incorporating local-in-time adjoint-based method for unsteady thermal-fluid problem. Structural and Multidisciplinary Optimization, Vol. 58, No. 2, pp. 817–822, 2018. DOI: 10.1007/s00158-018-1922-6

25. 古口睦士, 久保世志, 矢地謙太郎, 山田崇恭, 泉井一浩, 西脇眞二. 埋め込み境界法を用いた定常の非圧縮性粘性流れのトポロジー最適化. 日本機械学会論文集, Vol. 84, No. 860, pp. 17–00551, 2018.

26. Yaji K., Yamasaki S., Tsushima S., Suzuki T., and Fujita K. Topology optimization for the design of flow fields in a redox flow battery. Structural and Multidisciplinary Optimization, Vol. 57, No. 2, pp. 535–546, 2018. DOI: 10.1007/s00158-017-1763-8

27. Sato Y., Yaji K., Izui K., Yamada T., and Nishiwaki S. An optimum design method for a thermal-fluid device incorporating multiobjective topology optimization with an adaptive weighting scheme. Journal of Mechanical Design, Vol. 140, No. 3, p. 031402, 2018. DOI: 10.1115/1.4038209

28. 丸山峻, 山﨑慎太郎, 矢地謙太郎, 藤田喜久雄. 永久磁石の配置とヨークの構造形態を考慮した同期モータの最適設計法. 日本設計工学会, Vol. 53, No. 1, pp. 97–110, 2018.

29. 山内仁史, 山﨑慎太郎, 矢地謙太郎, 藤田喜久雄. 陽的縮約に基づくマルチフィデリティ熱解析モデルによる複合領域配置設計最適化法. 日本機械学会論文集, Vol. 83, No. 855, pp. 17–00320, 2017.

30. Sato Y., Yaji K., Izui K., Yamada T., and Nishiwaki S. Topology optimization of a no-moving-part valve incorporating Pareto frontier exploration. Structural and Multidisciplinary Optimization, Vol. 56, No. 4, pp. 839–851, 2017. DOI: 10.1007/s00158-017-1690-8

31. Chen C., Yaji K., Yamada T., Izui K., and Nishiwaki S. Local-in-time adjoint-based topology optimization of unsteady fluid flows using the lattice Boltzmann method. Mechanical Engineering Journal, Vol. 4, No. 3, pp. 17–00120, 2017. DOI: 10.1299/mej.17-00120

32. Furuta K., Izui K., Yaji K., Yamada T., and Nishiwaki S. Level set-based topology optimization for the design of a Peltier effect thermoelectric actuator. Structural and Multidisciplinary Optimization, Vol. 55, No. 5, pp. 1671–1683, 2017. DOI: 10.1007/s00158-016-1609-9

33. Kubo S., Yaji K., Yamada T., Izui K., and Nishiwaki S. A level set-based topology optimization method for optimal manifold designs with flow uniformity in plate-type microchannel reactors. Structural and Multidisciplinary Optimization, Vol. 55, No. 4, pp. 1311–1327, 2017. DOI: 10.1007/s00158-016-1577-0

34. Yaji K., Otomori M., Yamada T., Izui K., Nishiwaki S., and Pironneau O. Shape and topology optimization based on the convected level set method. Structural and Multidisciplinary Optimization, Vol. 54, No. 3, pp. 659–672, 2016. DOI: 10.1007/s00158-016-1444-z

35. Yaji K., Yamada T., Yoshino M., Matsumoto T., Izui K., and Nishiwaki S. Topology optimization in thermal fluid flow using the lattice Boltzmann method. Journal of Computational Physics, Vol. 307, pp. 355–377, 2016. DOI: 10.1016/j.jcp.2015.12.008

36. 田中隆太, 矢地謙太郎, 佐藤綾美, 泉井一浩, 山田崇恭, 西脇眞二. 誘起電荷電気浸透流を用いたマイクロポンプを対象としたレベルセット法に基づくトポロジー最適化. 日本機械学会論文集, Vol. 82, No. 835, pp. 15–00406, 2016.

37. Yaji K., Yamada T., Kubo S., Izui K., and Nishiwaki S. A topology optimization method for a coupled thermal-fluid problem using level set boundary expressions. International Journal of Heat and Mass Transfer, Vol. 81, pp. 878–888, 2015. DOI: 10.1016/j.ijheatmasstransfer.2014.11.005

38. 矢地謙太郎, 山田崇恭, 吉野正人, 松本敏郎, 泉井一浩, 西脇眞二. 等密度の二相系格子ボルツマン法を用いたトポロジー最適化. 計算数理工学論文集, Vol. 15, No. 09-151204, pp. 49–54, 2015.

39. 古口睦士, 矢地謙太郎, 山田崇恭, 泉井一浩, 西脇眞二. 有限体積法を用いたレベルセット法に基づく非圧縮性粘性流れのトポロジー最適化. 日本計算工学会論文集, Vol. 2015, p. 20150002, 2015.

40. 矢地謙太郎, 山田崇恭, 吉野正人, 松本敏郎, 泉井一浩, 西脇眞二. 流体問題を対象としたトポロジー最適化における離散ボルツマン方程式に基づく感度解析手法. 計算数理工学論文集, Vol. 14, No. 16-141206, pp. 67–72, 2014.

41. Yaji K., Yamada T., Yoshino M., Matsumoto T., Izui K., and Nishiwaki S. Topology optimization using the lattice Boltzmann method incorporating level set boundary expressions. Journal of Computational Physics, Vol. 274, pp. 158–181, 2014. DOI: 10.1016/j.jcp.2014.06.004

42. 矢地謙太郎, 北村優太, 松下徹, 山田崇恭, 泉井一浩, 西脇眞二. ブレーキディスクの構造最適化—冷却性能向上とブレーキ鳴き低減を同時に考慮したトポロジー最適化—. 精密工学会誌, Vol. 80, No. 8, pp. 763–770, 2014.

43. 久保世志, 矢地謙太郎, 山田崇恭, 泉井一浩, 西脇眞二. 内部流れを対象とした流出流量比を考慮可能なレベルセット法に基づくトポロジー最適化. 日本機械学会論文集, Vol. 80, No. 815, p. DM023, 2014.

44. 矢地謙太郎, 山田崇恭, 吉野正人, 松本敏郎, 泉井一浩, 西脇眞二. 格子運動論スキームを用いたレベルセット法に基づくトポロジー最適化. 計算数理工学論文集, Vol. 13, No. 18-131129, pp. 85–90, 2013.

45. 矢地謙太郎, 山田崇恭, 吉野正人, 松本敏郎, 泉井一浩, 西脇眞二. 格子ボルツマン法を用いたレベルセット法に基づくトポロジー最適化. 日本機械学会論文集 (C編), Vol. 79, No. 802, pp. 2152–2163, 2013.

46. 矢地謙太郎, 山田崇恭, 泉井一浩, 西脇眞二. Oseen流れにおけるレベルセット法に基づくトポロジー最適化. 計算数理工学論文集, Vol. 12, No. 02-121212, pp. 7–12, 2012.

1. 近藤継男, 矢地謙太郎, 西脇眞二. トポロジー最適化の基礎: 弾性体ならびに熱流体関連工学諸問題への応用のために. コロナ社, 2024.

2. 矢地謙太郎. 再生可能エネルギー導入に向けたレドックスフロー電池の開発最前線 (分担執筆：第17章 レドックスフロー電池の流動場設計を目的としたトポロジー最適化). シーエムシー出版, 2023.

1. Minowa K., Fujita K., Nomaguchi Y., Yamasaki S., and Yaji K. Variational deep embedding mines concepts from comprehensive optimal designs. Gero J. ed., Design Computing and Cognition'20, pp. 643–654. Springer, 2020. DOI: 10.1007/978-3-030-90625-2_38

2. Yaji K. Topology optimization for porous cooling systems. Itou H., Hirano S., Kimura M., Kovtunenko V. A., and Khludnev A. M. eds., International Conference Continuum Mechanics Focusing on Singularities, pp. 147–156. Springer, 2018. DOI: 10.1007/978-981-15-6062-0_10

1. 矢地謙太郎. 『最適設計と積層造形』の新動向. 計算工学, Vol. 27, No. 3, pp. 4466–4468, 2022. 

2. 矢地謙太郎. 数理最適化で切り拓くレドックスフロー電池の新しい流動場構造. ファインケミカル, Vol. 50, No. 11, pp. 27–32, 2021.

3. 矢地謙太郎. トポロジー最適化によるレドックスフロー電池の新奇な流路構造の創成. 計算工学, Vol. 25, No. 4, pp. 4156–4159, 2020.

4. 矢地謙太郎. トポロジー最適化の流体問題への展開. 精密工学会誌, Vol. 86, No. 6, pp. 400–404, 2020.

5. 矢地謙太郎. はじめてのトポロジー最適化. 精密工学会誌, Vol. 85, No. 11, pp. 965–968, 2019.

6. 矢地謙太郎. 格子ボルツマン法を用いた流れ場のトポロジー最適化. 計算数理工学会誌, Vol. 2016-2, pp. 15–24, 2016.

1. Kii T., Yaji K., Fujita K., Zhenghui S., and Seepersad C.C. Data-driven multifidelity topology design with a latent crossover operation. Proceedings of the ASME Design Engineering Technical Conference, No. IDETC2023-111079, Boston, August 2023. DOI: 10.1115/DETC2023-111079

2. Kato M., Kii T., Yaji K., and Fujita K. Tackling an exact maximum stress minimization problem with gradient-free topology optimization incorporating a deep generative model. Proceedings of the ASME Design Engineering Technical Conference, No. IDETC2023-111265, Boston, August 2023. DOI: 10.1115/DETC2023-111265

3. Tsumoto R., Fujita K., Nomaguchi Y., Yamasaki S., and Yaji K. Classification-directed conceptual structure design based on topology optimization. Proceedings of the ASME Design Engineering Technical Conference, No. IDETC2022-88548, Online, August 2022. DOI: 10.1115/DETC2022-88548

4. Fujita K., Minowa K., Nomaguchi Y., Yamasaki S., and Yaji K. Design concept generation with variational deep embedding over comprehensive optimization. Proceedings of the ASME Design Engineering Technical Conference, No. IDETC2021-69544, Online, August 2021. DOI: 10.1115/DETC2021-69544

5. Nomura K., Takahashi A., Kojima T., Yamasaki S., Yaji K., Bo H., and Fujita K. Topology-Optimization-Based EMC Design. Proceedings of EMC Europe 2019, Barcelona, September 2019. DOI: 10.1109/EMCEurope.2019.8871981

6. Yaji K., Yamasaki S., and Fujita K. A framework of multi-fidelity topology design and its application to optimum design of flow fields in battery systems. Proceedings of the ASME Design Engineering Technical Conference, No. IDETC2019-97675, Anaheim, August 2019. DOI: 10.1115/DETC2019-97675

7. Yaji K., Yamasaki S., and Fujita K. Topology design via physics-based surrogate optimization for turbulent heat transfer. Proceedings of Asian Congress of Structural and Multidisciplinary Optimization, No. 1B2-4, Dalian, May 2018.

8. Kubo S., Koguchi A., Yaji K., Yamada T., Izui K., and Nishiwaki S. A level-set based topology optimization method for incompressible flow incorporating with an immersed boundary method. Proceedings of EUROGEN 2017, No. 039, Madrid, September 2017.

9. Yamasaki S., Yaji K., and Fujita K. Knowledge discovery in dataset generated by topology optimization. Proceedings of 12th World Congress on Structural and Multidisciplinary Optimization, No. 428, Braunschweig, June 2017. DOI: 10.1007/978-3-319-67988-4_87

10. Nomura K., Kondoh T., Ishikawa T., Yamasaki S., Yaji K., and Fujita K. Topology optimization of power semiconductor devices. Proceedings of 12th World Congress on Structural and Multidisciplinary Optimization, No. 406, Braunschweig, June 2017. DOI: 10.1007/978-3-319-67988-4_126

11. Maruyama S., Yamasaki S., Yaji K., and Fujita K. Integrated design of permanent magnet synchronous motor by incorporating magnet layout and yoke topology optimizations. Proceedings of 12th World Congress on Structural and Multidisciplinary Optimization, No. 418, Braunschweig, June 2017. DOI: 10.1007/978-3-319-67988-4_128

12. Bo H., Yamasaki S., Nomura K. Y. K., Takahashi A., and Fujita K. Conductor layout optimization for reducing the magnetic coupling noise of a filter circuit board. Proceedings of 12th World Congress on Structural and Multidisciplinary Optimization, No. 412, Braunschweig, June 2017. DOI: 10.1007/978-3-319-67988-4_127

13. Yaji K., Yamada T., Yoshino M., Matsumoto T., Izui K., and Nishiwaki S. Level set-based topology optimization using the lattice Boltzmann method considering two-phase fluid flows. Proceedings of 11th World Congress on Structural and Multidisciplinary Optimization, No. 1302, Sydney, June 2015.

14. Yaji K., Yamada T., Yoshino M., Matsumoto T., Izui K., and Nishiwaki S. Level set-based topology optimization method for viscous flow using lattice Boltzmann method. Proceedings of 10th World Congress on Structural and Multidisciplinary Optimization, No. 5171, Florida, May 2013.

15. Yaji K., Yamada T., Izui K., and Nishiwaki S. Topology optimization method using level set boundary expressions in Navier Stokes flow. Proceedings of 14th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, No. 5526, Indiana, September 2012. DOI: 10.2514/6.2012-5526

16. Yaji K., Yamada T., Izui K., and Nishiwaki S. Level set based-topology optimization in a viscous fluid under Oseen approximation. Proceedings of 7th China-Japan-Korea Joint Symposium on Optimization of Structural and Mechanical Systems, No. J069, Huangshan, Jun 2012.

Yaji K. Topology optimization using the lattice Boltzmann method and applications in flow channel designs considering thermal and two-phase fluid flows, 京都大学大学院工学研究科機械工学専攻 博士論文, 2016.