Publications(2023)

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Original Ariticles

• Boqi Ren, Chung-Gang Li, Makoto Tsubokura: The effects of irregular roughness with different surface power spectrums on the heat transfer of natural convection in enclosures, International Communications in Heat and Mass Transfer, vol.141, 106581
• Boqi Ren, Chung-Gang Li, Makoto Tsubokura: Direct numerical simulation of vertically heated natural convection over 3D irregular roughness, Computers & Fluids, vol. 257, 105866
• Alicia Murga, Rahul Bale, Chung-Gang Li, Kazuhide Ito, Makoto Tsubokura: Large eddy simulation of droplet transport and deposition in the human respiratory tract to evaluate inhalation risk, PLOS Computational Biology, 19(3): e1010972
• Chung-Gang Li, Rahul Bale, WeiHsiang Wang, Makoto Tsubokura: A sharp interface immersed boundary method for thin-walled geometries in visous compressible flows, Internationla journal of mechanical sciences, vol 253(1),108401
• Yuji Wada, Tokimasa Shimada, Koji Nishiguchi, Shigenobu Okazawa, Makoto Tsubokura: Billion-design-variable-scale topology optimization of vehicle frame structure in multiple-load case, Proceedings of the institution of mechanical engineers, Part D: journal of automotive engineering
• Kazuto Ando, Keiji Onishi, Rahul Bale, Akiyoshi Kuroda, Makoto Tsubokura :Nonlinear Reduced-Order Modeling for Three-Dimensional Turbulent Flow by Large-Scale Machine Learning, Computers and Fluids, 106047
• Rahul Bale, ChungGang Li, Hajime Fukudome, Saori Yumino, Akiyoshi Iida, Makoto Tsubokura: Characterizing infection risk in a restaurant environment due to airborne diseases using discrete droplet dispersion simulation, Heliyon, 9(10), e20540
• Sangwon Kim, Onishi Junya, Bale Rahul, and Tsubokura Makoto : Droplet dispersion simulation to evaluate airborne virus infection risk in outdoor sports stadiums, accepted, Journal of Fluid Science and Technology

International Conferences

• Ayato Takii, Ritsuka Gomi, Masashi Yamakawa, Makoto Tsubokura: Turning flight simulation with fluid-rigid body interaction for flying car with contra-rotating propellers, International Conference on Computational Science (ICCS 2023), pp.566-577
• Sangwon Kim, Nobuyuki Oshima, Makoto Tsubokura: DNS study on the effect of skin friction of over millimeter-sized bubbles in horizontal channel flow, 14th Ercoftac Symposium on Engineering Turbulence Modelling and Measurements (ETMM 14) (6-8, September, 2023), 189 (2023)
• Makoto Tsubokura, Yuma Matsuki, Ryosuke Ueda, Shota Nishinakagawa, Masahide Onuki, Takahiro Sajima: Large-eddy simulation on golf-ball aerodynamics with different flight conditions, 14th Ercoftac Symposium on Engineering Turbulence Modelling and Measurements (ETMM 14) (6-8, September, 2023), 361 (2023)
• Tokimasa Shimada, Koji Nishiguchi, Rahul Bale, Shigenobu Okazawa, Makoto Tsubokura: A novel method to compute forced and induced motion of rigid body based on monolithic Eulerian fluid-structure interaction scheme and immersed boundary method, X International Conference of Computational Methods for Coupled Problems in Science and Engineering (COUPLED 2023)(5-7, June 2023, Crete, Greece)
• Takuji Nakashima, Gentaro Hamada, Keigo Shimizu, Yusuke Nakamura, Akira Oyama, Kohei Seo, Takenori Hiraoka, Takahide Nouzawa, Makoto Tsubokura: Multi-Objective aerodynamic shape optimization for an SUV car considering the properties of proportion and silhouette, ASME-JSME-KSME Fluids Engineering Division(AJKFED 2023)(9-13, July, 2023, Osaka, Japan), 2-08-1-01
• Naveen Kumar Chahel, Nobuyuki Oshima, Rahul Bale, Makoto Tsubokura: Optimization of air conditioning system of railway coach, ASME-JSME-KSME Fluids Engineering Division (AJKFED 2023)(9-13, July, 2023, Osaka, Japan), 2-08-2-06
• Sangwon Kim, Junya Onishi, Rahul Bale, Makoto Tsubokura: Droplet dispersion simulation for evaluating the risk of airborne virus infection in an outdoor sport stadium environment, ASME-JSME-KSME Fluids Engineering Division (AJKFED 2023)(9-13, July, 2023, Osaka, Japan), 4-04-1-01
• Rahul Bale, Haruhito Yamamoto, Alicia Murga Aquino, Chung-Gang Li, Makoto Tsubokura: Investigating the efficacy of displacement ventilation in removing indoor air contaminants: The role of ventilation flow rate and inlet-outlet arrangement, ASME-JSME-KSME Fluids Engineering Division (AJKFED 2023)(9-13, July, 2023, Osaka, Japan), 4-08-3-01
• Makoto Tsubokura: Real-world vehicle aerodynamics simulation on the supercomputer “Fugaku” towards digital twins, Fahrzeug-Aerodynamik - Neue Chancen und Herausforderungen durch Elektromobilität und CO2-Gesetzgebung (Vehicle Aerodynamics - New opportunities and challenges due to electromobility and CO2 regislation) (20-21, June 2023, online)
• Shin Ikeda, Keizo Yamamoto, Makoto Tsubokura: A study of suitable takeoff motion of a ski jumper using principal component analysis and computational fluid dynamics, XXIX Congress of International Society of Biomechanics (ISB)(30th July – 3rd August, 2023, Fukuoka), O68-1
• Alicia Murga Aquino, Kazuhide Ito, Makoto Tsubokura: Rethinking different ventilation strategies in a post-pandemic era: a CFD assessment, 43rd Air Infiltration and Ventilation Centre (AIVC) conference(4-5, Oct., 2023, Copenhagen, Denmark)
• Masaya Muto, Makoto Tsubokura, Ryoichi Kurose: Numerical simulation of spiral vortices on sphere rotating around axis parallel to mean flow, 76th annual meeting of the American physical society, division of fluid dynamics (19-21, Nov., Washington, DC), G11.02, 2023
• Tsukasa Yoshinaga, Hsheh-Jui Lu, Chung-Gang Li, Kazunori Nozaki, Akiyoshi Iida, Makoto Tsubokura: Numerical simulation of aeroacoustic sound generation during tongue articulation and velopharyngeal closing, 76th annual meeting of the American physical society, division of fluid dynamics (19-21, Nov., Washington, DC), R14.05, 2023

Domestic Conferences

• 和田有司, 嶋田宗将, 西口浩司, 岡澤重信, 坪倉誠：CUBEフレームワークを利用したボクセルトポロジー最適化による固有値最大化, 第28回計算工学講演会（2023年5月31～6月2日, つくば国際会議場）, C-01-02
• 金相元, 大西順也, Bale Rahul, 坪倉誠：Droplet/Aerosol dispersion simulation for assessing the infection risk due to airborne virus in a sport stadium type environment, 第28回計算工学講演会（2023年5月31～6月2日, つくば国際会議場）, C-01-04
• 嶋田宗将, 西口浩司, 岡澤重信, 坪倉誠：マーカー粒子とオイラー型有限体積法を用いた圧縮性構造解析スキームの提案, 第28回計算工学講演会（2023年5月31～6月2日, つくば国際会議場）, E-07-01（キーノート講演
• 安藤和人, バレラフール, 坪倉誠: “複雑形状周辺の三次元乱流を対象とした非線形縮約モデリング, 日本流体力学会年会 2023（2023年9月20～22日, 東京）, E9-04
• 大橋誠五, Alicia Murga, Rahul Bale, 坪倉誠：飛沫感染リスク評価のためのLESを用いた気道内粒子沈着解析, 第37回数値流体力学シンポジウム（2023年12月15～17日、名古屋）, 3301-05-02
• 山本陽大, Rahul Bale, Alicia Murga, 坪倉誠：数値解析による飛沫感染リスクを低減するための換気手法の検討, 第37回数値流体力学シンポジウム（2023年12月15～17日、名古屋）, 3301-05-03
• 滝井郁人, 坪倉誠：バーティポートにおける空飛ぶクルマのダウンウォッシュの数値解析, 第37回数値流体力学シンポジウム（2023年12月15～17日、名古屋）, 3409-12-03
• 大西順也, 森翔暉：DF-PINNsを用いた非定常流れの数値シミュレーションの実現性に関する検討, 第37回数値流体力学シンポジウム（2023年12月15～17日、名古屋）, 3409-12-04
• 藤原僚太郎, 林勇樹, バレラフール, 嶋田宗将, 山本敬三, 坪倉誠：潜水泳法の動作とその推進力に関する数値シミュレーション, 第37回数値流体力学シンポジウム（2023年12月15～17日、名古屋）, 1106-10-03

Prizes

• 内閣府　第5回日本オープンイノベーション大賞文部科学大臣賞：スパコン「富岳」による新型コロナ飛沫感染リスク評価のデジタルトランスフォーメーションと社会実装
• 理化学研究所栄峰賞「スパコン「富岳」による飛沫・エアロゾル感染リスク評価のDX」
• 2023 JACM(Japan Association of Computational Mechanics) Computational Mechanics Award

Others

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