Naoki Takegawa

タケガワナオキ | Naoki Takegawa

Affiliation and department：
Research theme for competitive and other funds (8)：

2024 - 2027 溜池堤防の動的挙動・侵食メカニズムの解明と省力的地震・豪雨対策の両立
2023 - 2025 液体・気体分野の技術を組み合わせた新たな液化ガス流量計測システムの開発
2021 - 2024 溜池に流入する土石流の挙動解明ならびに廃止溜池を活用した治水技術の確立
2023 - 2024 廃止により開削された溜池堤防の土砂災害に対する安全性に関する研究
2020 - 2023 Development of flow velocimetry in micro-space and its application to advanced micro-gas flow measurement

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Papers (11)：

Naoki Takegawa, Toshihiro Morioka. Analytical methodology for calculating discharge coefficients of critical flow nozzles for high-pressure hydrogen. International Journal of Hydrogen Energy. 2024. 58. 8. 737-744
Naoki Takegawa, Yutaka Sawada, Noriyuki Furuichi. Strategic coastal dike shape for enhanced tsunami overflow reduction. PLOS ONE. 2023. 18. 10. e0292930-e0292930
Naoki Takegawa, Noriyuki Furuichi. Traceability management system using blockchain technology and cost estimation in the metrology field. Sensors. 2023. 23. 3. 1673
Naoki Takegawa, Masahiro Ishibashi, Aya Iwai, Noriyuki Furuichi, Toshihiro Morioka. Verification of flow velocity measurements using micrometer-order thermometers. Scientific Reports. 2021. 11. 1. 23778
Naoki Takegawa, Yutaka Sawada, Toshinori Kawabata. Mitigating tsunami damage by promoting ground erosion. Journal of Earthquake and Tsunami. 2021. 15. 2. 2150007

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MISC (6)：

Katsuhiro Shirono, Naoki Takegawa, Mahbuba Moni, Daniel Peters. Design of the digitalized conformity assessment for laboratory activities in individual certifications. 2022
Velocity measurement in critical flow nozzle and its response using recovery temperature anemometry (RTA). Proceedings of the19th Conference on FLOMEKO. 2022
Takegawa, N, Ishibashi, M, Morioka, T. Effects of step in CFVN on Premature Unchoking Phenomena. Proceedings of the 18th Conference on FLOMEKO. 2019
Takegawa,N, Sawada,Y, Kawabata,T. Effect of Scour Protections against Tsunami Overflow at a Landward Toe of Coastal Dikes, Proceedings of the 27th International Society of Offshore and Polar Engineering Conference. Proceedings of the 27th International Society of Offshore and Polar Engineering Conference. 2017. 976-980
Sawada,Y, Takegawa,N, Murai,K, Kawabata,T. Influence of Effective Stress of Soil on Scour at Landward Toe of Coastal Dykes under Tsunami Overflow. Proceedings of the 26th International Society of Offshore and Polar Engineering Conference. 2016. 2016-January. 843-847

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Lectures and oral presentations (15)：

高圧水素ガスを対象とした臨界ノズルの流出係数に関する数値解析および整理手法
(関東支部第29期総会・講演会 2023)
高圧水素用臨界ノズルの流出係数に関する数値解析および整理手法
(2022年度衝撃波シンポジウム 2023)
熱電対を用いた流速計測とその応答性推定
(2022年度日本機械学会年次大会 2022)
熱電対を用いた流速計測手法の精度検証に関する実験
(2021年度日本機械学会年次大会 2021)
熱電対を用いたノズル内音速流の計測
(2020年度衝撃波シンポジウム 2021)

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Education (1)：

Professional career (1)：

Work history (1)：

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