Matsuo, Akiko

写真a

Affiliation

Faculty of Science and Technology, Department of Mechanical Engineering (Yagami)

Position

Professor

Related Websites

External Links
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Profile Summary 【 Display / hide 】

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Career 【 Display / hide 】

  • 1989.04
    -
    1993.03

    (株)リクルート　スーパーコンピュータ研究所勤務

  • 1992.01
    -
    1993.09

    日本学術振興会（ＤＣ１）（名古屋大学）, 特別研究員

  • 1993.10
    -
    1995.03

    日本学術振興会（ＰＤ）（文部省宇宙科学研究所）, 特別研究員

  • 1995.04
    -
    1997.03

    慶應義塾大学理工学部, 助手

  • 1995.06

    文部科学省宇宙科学研究所, 共同研究員

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Academic Background 【 Display / hide 】

  • 1987.03

    Tsuda College, Faculty of Arts and Science, 数学科

    University, Graduated

  • 1989.03

    Nagoya University, Graduate School, Division of Engineering, 航空工学専攻課程

    Graduate School, Completed, Master's course

  • 1993.09

    Nagoya University, Graduate School, Division of Engineering, 航空工学専攻課程

    Graduate School, Completed, Doctoral course

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Academic Degrees 【 Display / hide 】

  • 工学, Nagoya University, 1993.09

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Research Areas 【 Display / hide 】

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

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

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Books 【 Display / hide 】

  • Detonation Control for Propulsion: Pulse Detonation and Rotating Detonation Engines (Shock Wave and High Pressure Phenomena)

    K. Matsuoka, H. Taki, J. Kasahara, H. Watanabe, A. Matsuo, and T. Endo, Springer International Publishing, 2018.01

    Scope: Pulse Detonation Cycle at Kilohertz Frequency, Chapter 8, pp.183-198

  • Detonation Control for Propulsion: Pulse Detonation and Rotating Detonation Engines (Shock Wave and High Pressure Phenomena)

    J. Kasahara, Y. Kato, K. Ishihara, K. Goto, K. Matsuoka, A. Matsuo, I. Funaki, H. Moriai, D. Nakata, K. Higashino, and N. Tanatsugu, Springer International Publishing, 2018.01

    Scope: Application of Detonation Waves to Rocket Engine Chamber, Chapter 4, pp.61-76

  • 機械工学便覧 基礎編 α5　熱 工 学

    松尾亜紀子　他62名, 日本機械学会, 2006.12

    Scope: 2・14　気体の流動　pp44-48

  • 数値流体力学ハンドブック

    松尾亜紀子　他79名, 丸善, 2003.03

    Scope: 6・6　デトネーション　pp300-303

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Papers 【 Display / hide 】

  • Lagrangian characterization of induction and reaction timescales in a cellular gaseous detonation

    Watanabe H., Matsuo A., Chinnayya A., Itouyama N., Matsuoka K., Kasahara J.

    Physics of Fluids 37 ( 2 )  2025.02

    ISSN  10706631

    　View Summary

    A Lagrangian approach was proposed to analyze induction and reaction times in the cellular gaseous detonation. Two-dimensional simulations in an argon-diluted and non-diluted hydrogen-based mixtures were performed with detailed chemistry, along particle trajectories. The distribution of the induction and reaction times inside the cell was significantly different between the Eulerian and the Lagrangian perspectives, the latter showing non-monotonic behavior. Preferential thermodynamic paths laid along the Rankine-Hugoniot curve and behind transverse waves (TW). All particles were ignited within half and one cell cycle for the diluted and non-diluted mixture, respectively. The ignition mechanisms were not only one-dimensional, but also multi-dimensional, with ignition behind the TW being the most important, and collision of TW and triple points being secondary. A new topology inside the cell could be drawn, from the intersection of the ignition front with TW. TW appeared as phase waves in the ( x , t ) diagram. Comparison of H2O mass fraction between local and equilibrium values indicated that a local chemical disequilibrium remained (superequilibrium), due to TW. Equating the mean sonic plane with thermochemical equilibrium in the non-diluted case is not completely accurate. Furthermore, the characteristic time scales for chemical and hydrodynamic phenomena were compared. The diffusive phenomenon did not make any contribution in the mixtures tested. In comparison with the Zel'dovich-von Neumann-Döring model, a shorter average induction time was found in the non-diluted mixture, which is not in line with the results from previous Favre approaches. The average reaction time was also shorter in both mixtures.

  • Numerical Investigation of Detonation-assisted Fuel Injection Method in Scramjet Engines with Rotating Detonation Combustor

    Miyashita M., Matsuo A., Shima E., Kawasaki A., Itouyama N., Matsuoka K., Kasahara J.

    AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2025  2025

    　View Summary

    This study conducted three-dimensional numerical analyses for the interaction of the exhaust flow of a Reflective Shuttling Detonation Combustor (RSDC) and supersonic air-flow to investigate the new concept of detonation combustion as an injection system for scramjet engines. The computational targets of RSDC are the region where the hydrogen-air premixed gas flows from three rows of injectors set at the bottom in fuel-rich conditions. The additional fuel for the supersonic turbulent combustion in the scramjet combustor was added from the side wall of RSDC. The reflective wall distance, the height, and the width of RSDC were set to 45.0 mm, 53 mm, and 5 mm. The supersonic air-flow area simulated scramjet combustor is the region where the air flows at Mach number 3, and the RSDC is related to the main flow area as an injector. The governing equations used in this study were a three-dimensional compressible Navier-Stokes equation and a chemical conservation law of 9 species. The mixed scale model for LES was also used as the turbulence model. As a result, turbulent combustion was observed in the supersonic flow area by mixing the supersonic flow and the exhaust flow of RSDC, including additional fuel. The dynamic pressure ratio of the exhaust flow was 23% greater than that of the single-hole injection (previous injection system of scramjet engine) and 13% greater than that of deflagration combustion. The penetration height was improved, and the turbulent combustion was continuously achieved without an ignition system or a cavity due to the detonation combustion inside the RSDC.

  • Synchronized Initiation of Two Cylindrical Rotating Detonation Engines

    Sakata R., Inada M., Itouyama N., Matsuoka K., Kasahara J., Kawasaki A., Matsuo A., Funaki I.

    Journal of Propulsion and Power 40 ( 6 ) 849 - 858 2024.11

    ISSN  07484658

    　View Summary

    A coupled cylindrical rotating detonation engine (RDE) with two cylindrical RDEs (both combustors had a combustor inner diameter of 23 mm and an axial length of 30 mm) placed next to each other was tested for rocket clustering application. The objective of the experiment was to achieve two-engine synchronized initiation with a single igniter. Experiments were conducted on the inner wall of the combustors with different connecting-hole diameters and wall heights to evaluate the ignition delay time, combustion mode, and propulsion performance. The propellants were gaseous ethylene and oxygen, and experiments were conducted under constant conditions of mass flow rate (40 ± 2g∕s), equivalence ratio (1.0±0.1), and backpressure (approximately 10 kPa). When the two combustion chambers were completely separated by a wall, ignition occurred with a time delay of 260 ms in the chamber without an igniter. However, when a large hole (10-mm diameter) was placed in the wall separating the two combustion chambers, synchronous initiation was successful. Synchronous initiation was also successful when the wall height was lowered (7-mm height). Under both conditions, the same level of specific impulse was achieved as for RDEs operating at the same mass flux.

  • Wave-converging pressure increase in curved cylindrical rotating detonation combustors

    Oda, Y., Sawada, S., Itouyama, N., Matsuoka, K., Kasahara, J., Kawasaki, A., Matsuo, A., and Funaki, I.

    Proceedings of the Combustion Institute (Proceedings of the Combustion Institute)  40 ( 1-4 )  2024.08

    Joint Work, Accepted,  ISSN  15407489

    　View Summary

    The internal combustion structure of a curved cylindrical rotating detonation combustor (RDC) was experimentally investigated through optical observation and pressure measurements. Experiments were conducted under low back pressure conditions using two combustion chambers having, in both cases, an internal diameter of 17.5 mm, a curvature of radius of 38.1 mm, and an outlet angle of 90 deg, with gaseous C2H4 and O2 as the propellants. One was made of SUS and the other of resin. In addition to vibrations and bottom center pressure, pressure distribution on the sidewalls was measured for the SUS combustor, and high-speed camera observations of self-luminescence from the radial direction were conducted for the resin combustor. These measurements were compared by varying the equivalence ratio. The frequency analysis results obtained from vibrations and self-luminescence indicated that the strongly-coupled detonation mode exhibited a higher peak frequency, suggesting that the detonation waves may have different propagation speeds or rotational positions. In terms of pressure distribution and self-luminescence, only the strongly-coupled detonation mode inside near the bottom surface exhibited high pressure and brightness values. This suggested the potential for converging pressure by employing rotating detonation waves and a curved tube.

  • Visualization and thrust measurement of rotating detonation engine with various channel expansion angles

    Nakajima, K., Sawada, T., Matsuoka, K., Itouyama, N., Kasahara, J., Kawasaki, A., and Matsuo, A.

    Proceedings of the Combustion Institute 40 ( 1-4 ) 105577 2024.07

    Research paper (international conference proceedings), Joint Work, Accepted,  ISSN  15407489

    　View Summary

    Although a rotating detonation engine (RDE) is expected to achieve a pressure gain (PG) at which the total pressure of the product at the engine exit exceeds the total pressure of the supplied oxidizer, many non-ideal phenomena occurring in the RDE hinder PG achievement. This study focused on the channel expansion angle near the injector outlet, which is considered to affect the detonation wave structure and the PG performance. To this end, thrust and self-luminescence were conducted by varying the channel expansion angle near the axially injected oxidizer injector outlet; that is 90° 30°and 6° Results indicate that thrust was not affected by the expansion angle. However, the corresponding propagation velocities of the detonation waves were 2160, 2025, and 1755 m/s, indicating that the propagation velocity decreased as the expansion angle decreased. The PG performance, which is the ratio of the total pressure at the combustor exit to the total pressure of the oxidizer plenum, was 57, 57, and 49 %. At the expansion angle of 6°, the PG performance decreased due to a significant increase in the total pressure of the oxidizer plenum. Visualization of the self-luminescence showed that as the expansion angle decreased, the burned gas backflow became more significant, confirming unstable propagation.

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Papers, etc., Registered in KOARA 【 Display / hide 】

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Reviews, Commentaries, etc. 【 Display / hide 】

  • 特集　航空宇宙分野御コンピューターシミュレーション

    松尾　亜紀子　他

    計算工学 28 ( 3 )  2023.07

    Article, review, commentary, editorial, etc. (scientific journal), Corresponding author

  • 爆発現象等に関する安全工学の研究に従事する理工学部機械工学科女性教授ープラントにおける爆発現象ー

    松尾　亜紀子

    高圧ガス (高圧ガス保安協会)  57 ( 1 ) 23 - 27 2020.01

    Article, review, commentary, editorial, etc. (other), Single Work,  ISSN  0452-2311

  • 極超音速飛しょう体におけるサボ分離挙動に関する数値解析

    笠原弘貴, 松尾亜紀子

    防衛技術ジャーナル (一般財団法人　防衛技術協会)  2019年9月号 ( 462 ) 46 - 52 2019.09

    Rapid communication, short report, research note, etc. (scientific journal), Joint Work

  • 化学プラント爆発事象再現へ向けた燃焼過程の解析技術

    松尾亜紀子

    安全工学 (安全工学会)  57 ( 6 ) 465 - 470 2018.12

    Article, review, commentary, editorial, etc. (scientific journal), Single Work,  ISSN  0570-4480

  • デトネーション解析における数値シミュレーションモデル

    松尾 亜紀子

    機械の研究 70 ( 9 ) 713 - 716 2018.09

    Article, review, commentary, editorial, etc. (scientific journal), Single Work

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Presentations 【 Display / hide 】

  • Wave-converging pressure increase in curved cylindrical rotating detonation combustors

    Oda, Y., Sawada, S., Itouyama, N., Matsuoka, K., Kasahara, J., Kawasaki, A., Matsuo, A., and Funaki, I.

    The CI’s 40th International Symposium - Emphasizing Energy Transition (Milan) , 

    2024.07
    , 

    Oral presentation (general)

  • Visualization and thrust measurement of rotating detonation engine with various channel expansion angles

    Nakajima, K., Sawada, T., Matsuoka, K., Itouyama, N., Kasahara, J., Kawasaki, A., and Matsuo, A.

    The CI’s 40th International Symposium - Emphasizing Energy Transition (Milan) , 

    2024.07
    , 

    Oral presentation (general)

  • Numerical Investigation of Turbulent Combustion Phenomena by Using New Injection System with Reflective Shuttling Detonation Combustor

    Miyashita, M., Matsuo, A., Shima, E., Kawasaki, A., Itouyama, N., Matsuoka, K., and Kasahara, J.

    The CI’s 40th International Symposium - Emphasizing Energy Transition (Milan) , 

    2024.07
    , 

    Poster presentation

  • The circumferentia l force on a cylindrical rotating detonation engine

    Sawada, S., Ishihara, K., Itouyama, N., Watanabe, H., Kawasaki, A., Matsuoka, K., Kasahara, J., Matsuo, A., and Funaki, I.

    The CI’s 40th International Symposium - Emphasizing Energy Transition (Milan) , 

    2024.07
    , 

    Oral presentation (general)

  • Numerical Analysis of an Air-breathing Engine Using Exhaust Jets from a Rotating Detonation Engine

    Tahara, J., Matsuo, A., Shima, E., Itouyama, N., Kawasaki, A., Matsuoka, K., and Kasahara, J.

    13th International Workshop on Detonation for Propulsion (IWDP2024) (Michigan, USA) , 

    2024.06
    , 

    Oral presentation (general)

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Research Projects of Competitive Funds, etc. 【 Display / hide 】

  • 多分散系微粉体がもたらす爆発被害：シミュレーションが解き明かす炭塵燃焼と安全評価

    2018.04
    -
    2021.03

    MEXT,JSPS, Grant-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), Principal investigator

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Intellectual Property Rights, etc. 【 Display / hide 】

  • パルスデトネーションエンジン用多孔微細管燃料酸化剤供給プレート

    Date applied： 2000-258181  2000.07 

    Date announced： 2002-39012  2002.02 

    Patent, Joint

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Awards 【 Display / hide 】

  • 2023年度日本燃焼学会論文賞

    川﨑央, 稲川 智也, 笠原次郎, 後藤 啓介, 松岡健, 松尾亜紀子, 船木一幸, 2023.11, 日本燃焼学会, Critical condition of inner cylinder radius for sustaining rotating detonation waves in rotating detonation engine thruster

    Type of Award： Award from Japanese society, conference, symposium, etc.

  • Fluids Science Research Award

    2023.11, 一般財団法人 機器研究会

    Type of Award： International academic award (Japan or overseas)

  • Pressure Gain Combustion Best Paper Award 2022

    K. Goto, K. Matsuoka, K. Matsuyama, A. Kawasaki, H. Watanabe, N. Itouyama, K. Ishihara, V. Buyakofu, T. Noda, J. Kasahara (Nagoya Univ.), A. Matsuo（Keio Univ.）, I. Funaki (JAXA), D. Nakata, M. Uchiumi (Muroran Inst. Tech.), H. Habu, S. Takeuchi, S. Arakawa, J. Masuda, K. Maehara, T. Nakao, K. Yamada (JAXA), 2023.01, AIAA, Flight Demonstration of Detonation Engine System Using Sounding Rocket S-520-31: Performance of Rotating Detonation Engine

    Type of Award： Award from international society, conference, symposium, etc.,  Country： United States

    　View Description

    深宇宙探査用デトネーションエンジンの宇宙飛行実証論文に対しAIAAが2022 AIAA Pressure Gain Combustion Best Paper Awardを授与。2021年7月27日に名古屋大学、宇宙航空研究開発機構、慶應義塾大学、室蘭工業大学との共同研究として観測ロケットS-520-31号機の第２段を用いてデトネーションエンジンの宇宙飛行実証を実施した。その結果を論文として公開し、その研究論文に対し、AIAAからBest Paper Awardを授与された。この賞は圧力増大燃研究（デトネーションエンジン研究）で2022年に米国航空宇宙学会で発表された口頭発表論文の内、優れた１件に授与される。

  • 2021年『美しい炎』の写真展最優秀作品賞

    松尾亜紀子 他, 2021.11, 一般社団法人　日本燃焼学会, World First! Detonation Engine Space Demonstration

    Type of Award： Award from Japanese society, conference, symposium, etc.

  • 2020年『美しい炎』の写真展最優秀作品賞

    松尾亜紀子 他, 2020.12, 一般社団法人　日本燃焼学会, Detonation Engine to Space

    Type of Award： Award from Japanese society, conference, symposium, etc.

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Courses Taught 【 Display / hide 】

  • LABORATORY IN SCIENCE

    2025

  • INTRODUCTION TO FLUID MECHANICS

    2025

  • INDEPENDENT STUDY ON SCIENCE FOR OPEN AND ENVIRONMENTAL SYSTEMS

    2025

  • INDEPENDENT STUDY FOR EXCHANGE STUDENT B

    2025

  • INDEPENDENT STUDY FOR EXCHANGE STUDENT A

    2025

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Courses Previously Taught 【 Display / hide 】

  • 宇宙推進工学

    Keio University

    2014.04
    -
    2015.03
    , 

    Spring Semester, Lecture

  • 機械工学創造演習

    Keio University

    2014.04
    -
    2015.03
    , 

    Autumn Semester, Seminar, Lecturer outside of Keio

  • 熱力学の基礎

    Keio University

    2014.04
    -
    2015.03
    , 

    Autumn Semester, Lecture

  • 高速空気力学

    Keio University

    2014.04
    -
    2015.03
    , 

    Autumn Semester, Lecture

  • 応用計算力学特論第２

    Keio University

    2014.04
    -
    2015.03
    , 

    Autumn Semester, Lecture

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Social Activities 【 Display / hide 】

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Media Coverage 【 Display / hide 】

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Memberships in Academic Societies 【 Display / hide 】

  • International Association for Hydrogen Safety, 

    2015.07
    -
    Present

  • International Shock Wave Institute, 

    2013
    -
    Present

  • 日本計算工学会, 

    2002.12
    -
    Present

  • 日本火災学会, 

    2002.11
    -
    2021

  • 日本原子力学会, 

    2002.11
    -
    2007.03

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Committee Experiences 【 Display / hide 】

  • 2024.10
    -
    2025.03

    操縦士・航空整備士の女性活躍推進ＷＧ 委員, 国土交通省

  • 2024.10
    -
    2025.12

    ドローンを活用した河川巡視・点検への適用検討会 委員, 国土交通省

  • 2024.10
    -
    2026.09

    消費者安全調査委員会専門委員, 消費者庁

  • 2024.10
    -
    2024.12

    令和六年度研究進捗中間確認会に係るアドバイザー, 国立研究開発法人宇宙航空研究開発機構

  • 2024.07
    -
    2026.07

    宇宙政策委員会　委員, 内閣府

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