Personnel Information

写真a

Imai Ryoji


The master's program in charge

Division of Production Systems Engineering

The department in charge

Department of Engineering

Job title

Professor

E-mail Address

E-mail address

Research field 【 display / non-display

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Fluid engineering

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Thermal engineering

  • Frontier Technology (Aerospace Engineering, Marine and Maritime Engineering) / Aerospace engineering

Keywords for Research Field 【 display / non-display

  • 燃料タンク

  • 冷却

  • 数値解析

  • ロケットエンジン

Graduate school・Graduate course, etc. 【 display / non-display

  • Osaka University

    1989.03,Master's program,Graduate School, Division of Engineering Science,機械工学分野,Completed,Japan

Degree 【 display / non-display

  • 博士(工学)

    微小重力環境における流体制御技術に関する研究

Career 【 display / non-display

  • ㈱IHI 基盤技術研究所 熱流体研究部 主幹研究員(部長待遇)

    1989.04 ~ 2014.01

  • 宇宙開発事業団宇宙環境利用システム本部 副主任開発部員

    1996.05 ~ 1998.10

  • 宇宙開発事業団宇宙環境利用システム本部招聘研究員

    1998.11 ~ 1999.03

Academic Society 【 display / non-display

  • 日本混相流学会

  • 日本航空宇宙学会

  • 日本マイクログラビティ応用学会

  • 日本機械学会

Academic prize 【 display / non-display

  • 日本機械学会畠山賞

    1987.03,日本機械学会

  • 日本機械学会技術奨励賞

    1993.04,日本機械学会

  • 日本マイクログラビティ応用学会論文賞

    2020.10.12,日本マイクログラビティ応用学会

 
 

Books 【 display / non-display

  • きちんと知りたい!飛行機メカニズムの基礎知識

    東野和幸,上羽正純,溝端一秀,今井良二,廣田光智,畠中和明,湊亮二郎,中田大将,樋口健,境昌宏,勝又暢久,日刊工業新聞社,2018.01

  • Interdisciplinary Transport Phenomena in the Space Sciences

    Kawanami O, Imai R, Azuma H, Ohta H, Honda I and Kawashima Y,Annals of the New York Academy of Sciences,Microgravity Experiment of On-Orbit Fluid Transfer Technique Using Swirl Flow, Interdisciplinary Transport Phenomena in the Space Sciences,2006

Papers 【 display / non-display

  • Study on the Suppression of Hydrogen Generation by Using Heated Simulated Incineration Ash and Water in an Ash Conveyor Environment

    Hideyuki Onodera, Ryoji Imai, Masahiro Sakai,Engineering Proceedings,(p.1 ~ 11),2026.04

  • Study on the Effect of Reactor Scale on Hydrogen Generation from Aluminum Alloy Powder and Water via Stirring

    Ryoji Imai, Rina Nishiyama, Yusuke Yamamoto, Masahiro Sakai,Engineering Proceedings,(p.1 ~ 11),2026

  • Study on Propellant Management Device for Small-Scale Supersonic Flight Experiment Vehicle

    Ryoji Imai, Takuya Wada,Aerospace,vol.12,(6),(p.1 ~ 24),2025.06

  • Two-Phase Flow Loop Experiments Onboard International Space Station

    浅野 等,大田 治彦,河南 治,今井 良二,井上 浩一,鈴木 康一,新本 康久,松本 聡,Japanese Journal of Multiphase Flow,vol.38,(1),(p.7 ~ 14),2024.03

  • Study on Dynamic Wetting and Sloshing Behavior in Microgravity Conditions Targetted to Propellant Tank in the Space Vehicles

    今井 良二,Japanese Journal of Multiphase Flow,vol.38,(1),(p.24 ~ 31),2024.03

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International conference proceedings 【 display / non-display

  • CHARACTERISTICS OF INNER-WALL TEMPERATURE TRANSITION DURING FLOW BOILING IN TRANSPARENT HEATED TUBE SECTION ONBOARD INTERNATIONAL SPACE STATION

    Tomoka Takahashi, Naoya Ikeda, Osamu Kawanami, Koichi Inoue, Hitoshi Asano, Ryoji Imai, Satoshi Matsumoto, Koichi Suzuki,Haruhiko Ohta,Proceedings of The 32nd International Symposium on Transport Phenomena,2022.03,online

  • Study on break of thermal stratification in container targeted to thermodynamic vent system for future spacecraft

    Ryoji Imai, Osamu Kawanami, Yutaka Umemura and Takehiro Himeno,IOP Conference Series: Materials Science and Engineering,vol.502,(1),(p.1 ~ 5),2019.03,Oxford,UK

  • A STUDY ON NUMERICAL SIMULATION OF ROLLOVER PHENOMENON IN TWO-LAYER DENSITY STRATIFIED FLUID

    K.Inaba,R.Imai,Proceedings of 16th INTERNATIONAL HEAT TRANSFER CONFERENCE,(p.3393 ~ 3400),Article Number:Katsunori Inaba, Ryoji Imai,Begell house Digital Library,2018.08,Beijing,China

  • N2O Tank Emptying Characteristics on a Running Rocket Sled

    Kazuki Yasuda, Daisuke Nakata, Kugo Okada, Masaharu Uchiumi, Kazuyuki Higashino, Ryoji Imai,AIAA paper,Article Number:AIAA 2018-4596,AIAA,2018.07,Cincinnati,Ohio

  • A study on a liquid surface behavior in a rectangular container with cyclic excitation and its numerical solution

    FUJIMOTO Takayuki, NAKAKITA Tomofumi, KOBAYASHI Hideo, IMAI Ryoji,The Proceedings of Mechanical Engineering Congress, Japan,vol.2018,(0),The Japan Society of Mechanical Engineers,2018

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Editorial and Commentary 【 display / non-display

  • Experiences Realated to Multi-phase Flow Research at Industry-goverment-academia Research Institute

    今井良二,Japanese Journal of Multiphase Flow,vol.39,(1),(p.1 ~ 2),2025.03

  • アルミニウム,水高圧水素製造反応の宇宙推進システムへの適用

    今井良二,油空圧技術,vol.59,(9),(p.7 ~ 11),2020.09

Presentaion at conference, meeting, etc. 【 display / non-display

  • 宇宙機用推進薬タンクを対象とした, 界面相変化を伴う動的濡れ挙動に関する研究

    小栗 卓真,今井 良二,北部支部2026年講演会/第7回再使用型宇宙輸送系シンポジウム,日本航空宇宙学会,北部支部2026年講演会/第7回再使用型宇宙輸送系シンポジウム講演論文集,2026.03.12,仙台市,Japan

  • LNG 貯槽を対象とした密閉容器内におけるロールオーバー現象の発⽣挙動に関する実験的検討

    原⽥ 将樹,今井 良二,⽇本機械学会北海道⽀部 第 63回講演会,⽇本機械学会北海道⽀部,⽇本機械学会北海道⽀部 第 63 回講演会予稿集,2026.02.28,札幌市,Japan

  • Study on the suppression of hydrogen generation by using heated simulated incineration ash and water, simulating an ash conveyor environment

    Hideyuki Onodera, Ryoji Imai, Masahiro Sakai,The 4th International Electronic Conference on Processes,Proceedings of The 4th International Electronic Conference on Processes,(p.1),2025.10.20,Switzerland

  • Study on the Effect of Reactor Scale on Hydrogen Generation from Aluminum Powder and Water via Stirring

    Ryoji Imai, Rina Nishiyama, Yusuke Yamamoto, Masahiro Sakai,The 4th International Electronic Conference on Processes,Proceedings of The 4th International Electronic Conference on Processes,(p.1),2025.10.20,Switzerland

  • 灰コンベヤ環境を摸擬した焼却灰と水による水素発生の抑制に関する研究

    小野寺英之、今井良二,第36回廃棄物資源循環学会研究発表会,廃棄物資源循環学会,第36回廃棄物資源循環学会研究発表会講演原稿2025,2025.09.17,名古屋市,Japan

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Patent acquisition 【 display / non-display

  • 加圧ガス供給装置とこれを用いた衛星用推進装置

    特願2018-012673,特開2019-132142,特許第6995278号

 

Class subject in charge 【 display / non-display

  • 工学技術者倫理(航空宇宙工学コース)

    2025,Department

  • 航空宇宙工学セミナー

    2025,Department

  • 環境科学(A~Gクラス)

    2025,Department

  • 伝熱学

    2025,Department

  • ロケット工学

    2025,Department

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