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Affiliation |
Engineering educational research section Mechanical and Intelligent Engineering Program |
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Title |
Associate Professor |
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Related SDGs |
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FUJIKAWA Toshihide
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Research Areas 【 display / non-display 】
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Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Fluid engineering
Papers 【 display / non-display 】
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Experiment and CFD-aided Bubble Dynamics Analysis on Bubble Nucleus Growth in Water through Two-dimensional Nozzle for Diesel Fuel Injector Nozzle Reviewed
25 ( 3 ) 掲載決定 2025.9
Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)
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A finite-series solution for the creeping flow in an exit region adjacent to a straight open tube exit Reviewed
Fujikawa, T, Egashira, R, Yaguchi, H, Ohashi, K, Fujikawa, S
Fluid Dynamics Research 57 ( 4 ) 1 - 23 2025
Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal)
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Dynamical Threshold of Cavitation due to Weak Tension Induced by LES-Based CFD Water Flows Reviewed
Fujikawa, T, Egashira, R, Hooman,K, Fukuda, M, Fujikawa,S
Multiphase Science and Technology 35 ( 3 ) 19 - 33 2023.8
Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal)
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Experiments and Dynamical Threshold of Bubble Nucleus Growth in Water by Non-Recirculating Cavitation Tunnel Reviewed
Fujikawa, T, Egashira, R, Jinnouchi, K, Fujikawa, S
The Japanese Society for Experimental Mechanics 22 ( 4 ) 246 - 254 2022.12
Authorship：Lead author, Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)
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Theory of Dynamical Cavitation Threshold for Diesel Fuel Atomization Reviewed
Fujikawa, T, Egashira, R, Hooman, K, Yaguchi, H, Masubuti, H, Fujikawa, S
Fluid Dynamics Research 54 ( 4 ) 1 - 16 2022.8
Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal)
MISC 【 display / non-display 】
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The Accomplishment of Distance Education Utilized by Microsoft Teams Reviewed
USUI, S, FUJIKAWA, T, YONEMITSU, S, OKAMOTO T, YAMASHITA, T
Research Report of National Institute of Technology (KOSEN), Miyakonojo College ( 55 ) 24 - 31 2021.1
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (other)
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模型実験と流れの相似則 Reviewed
FUJIKAWA, T, FUJIKAWA, S
Journal of The Japanese Society for Experimental Mechanics 20 ( 4 ) 72 2020.12
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal)
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流体工学・伝熱工学による医農工学連携ネットワーク Reviewed
FUJIKAWA, T, SHIRAIWA,H
Journal of The Japanese Society for Experimental Mechanics 19 ( 3 ) 77 2019.10
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal)
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都城工業高等専門学校 流体力学研究室 研究室紹介
FUJIKAWA, T
Journal of The Japanese Society for Experimental Mechanics 17 ( 3 ) 80 2017.10
Authorship：Lead author Language：Japanese Publishing type：Rapid communication, short report, research note, etc. (scientific journal)
Presentations 【 display / non-display 】
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A theory of the creeping flow through a circular pore in the zero thickness plate
Egashira, R., Fujikawa, T., Yaguchi, H., Ohashi, K., Fujikawa, S.
JSFM Annual meeting 2025 2025.9.17
Event date： 2025.9.17 - 2025.9.19
Language：Japanese Presentation type：Oral presentation (general)
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Cavitation Occurrence Conditions in High-speed Water Flow Passing through a Narrow Channel
Horikiri,F., Fujikawa,T., Shiraiwa, H., Fukuda,M., Egashira, R., Fujikawa,S.
2025 JSEM Annual Conference on Experimental Mechanics 2025.9.16
Event date： 2025.9.16 - 2025.9.18
Language：Japanese Presentation type：Oral presentation (general)
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Cavitation Nucleus Growth Experiments in a Two-Dimensional Nozzle
Yamamoto, T, Fujikawa, T, Fukuda, M, Shiraiwa, H, Egashira, R, Watanabe, H, Fujikawa, S, Hooman, K
2024.9.17
Event date： 2024.9.17 - 2024.9.19
Language：Japanese Presentation type：Oral presentation (general)
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Dynamical Threshold of Cavitation Induced by Weak Tension in High-Speed Water Flow
Miyashi, T, Fujikawa, T, Fukuda, M, Egashira, R, Fujikawa, S
2024.9.17
Event date： 2024.9.17 - 2024.9.19
Language：Japanese Presentation type：Oral presentation (general)
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Influence of Initial Bubble Radius on the Growth of a Bubble Translating in a Cavitation Tunnel
Tanaka, Y, Egashira, R, Fujikawa, T. Fujikawa
2024.9.4
Event date： 2024.9.4 - 2024.9.6
Language：Japanese Presentation type：Oral presentation (general)
Awards 【 display / non-display 】
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令和6年度報奨対象者 産学官連携活動の報奨制度
2024.10 国立高等専門学校機構
Award type：International academic award (Japan or overseas)
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社会貢献部門賞
2024.4 Dept. of Mechanical Engineering., National Institute of Technology(KOSEN), Miyakonojo College
FUJIKAWA Toshihide
Award type：International academic award (Japan or overseas)
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学会賞（論文賞）
2023.8 The Japanese Society for Experimental Mechanics Experiments and Dynamical Threshold of Bubble Nucleus Growth in Water by Non-Recirculating Cavitation Tunnel
Fujikawa, T, Egashira, R
Award type：International academic award (Japan or overseas)
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優秀学術賞（発表者：松岡直弥【指導学生】）
2023.3 先進的技術シンポジウム（ATS2022: Advanced Technologies for SDGs 2022） 熱流体データサイエンスによる高速準安定水中での気泡核生成と成長機構の解明
Matsuoka, N, Miyashi, T, Iwanaga, A, Fujikawa, T, Nakamura, Y
Award type：International academic award (Japan or overseas)
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特別賞（発表者：野口 芹菜，財部 駿星，中山 泰佑【指導学生】）
2022.10 一般社団法人全国高等専門学校連合会（全国高等専門学校第33回プログラミングコンテスト） HEALTH KEEPER
野口 芹菜, 財部 駿星, 中山 泰佑, 臼井 昇太, 藤川俊秀
Award type：International academic award (Japan or overseas)
Grant-in-Aid for Scientific Research 【 display / non-display 】
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高分子の「動的」熱分解モデル：気泡動力学との融合が拓く火災科学の確立に向けて
Grant number：25H00779 2025.04 - 2029.03
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research
Authorship：Coinvestigator(s) Grant type：Competitive
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高速水流境界層内で張力を受けた気泡核の成長機構と動的キャビテーション閾値の解明
Grant number：23K03684 2023.04 - 2026.03
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research
FUJIKAWA Toshihide
Authorship：Principal investigator Grant type：Competitive
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EFD・CFD・気泡力学融合による高速水中キャビテーションの初生機構と条件の解明
Grant number：20K04296 2020.04 - 2023.03
文部科学省 科学研究費補助金（基盤研究(C)（一般））
FUJIKAWA Toshihide
Authorship：Principal investigator
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光とナノミストを利用した連続水素生産装置の開発
Grant number： 20K05695 2020.04 - 2023.03
文部科学省 科学研究費補助金（基盤研究(C)（一般）） 基盤研究(C)（一般）
山下敏明，藤川俊秀
Authorship：Coinvestigator(s)
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Investigation of elementary processes of cavitation inception in high-speed ultrapure water based on bubble dynamics
Grant number：17K14596 2017.04 - 2020.03
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)
FUJIKAWA Toshihide
Authorship：Principal investigator Grant type：Competitive
Elementary processes of cavitation inception were investigated near a circular cylinder installed in high-speed water and oils. The non-circulation type of cavitation tunnel was constructed so that experimental conditions suitable for the inception study could be realized in the tunnel; (i) several cavitation nuclei are formed at a separation point on the cylinder due to tension, (ii) cavitation occurs only one time in each run, and (iii) size of solid particles and air contents in liquids can be controlled. We classified cavitation patterns into three types, by which the experimental conditions were found. Occurrence of tension in water behind the cylinder was clarified by CFD. Furthermore, the growth of a bubble in still liquids were theoretically investigated to forecast a radius attained during the negative pressure and, after that, a maximum radius attained under the successive atmospheric pressure.