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Odaira, Naoya

Institute for Integrated Radiation and Nuclear Science (KURNS) Assistant Professor

Odaira, Naoya
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    Last Updated :2025/04/29

    Basic Information

    Affiliated programs (koza)

    • Graduate School of Energy Science, エネルギー基礎科学専攻 核エネルギー学熱輸送システム工学, 助教

    Academic Degree

    • Master (Engineering)(University of Fukui)
    • Ph.D. (Engineering)(University of Fukui)

    Research History

    • From Apr. 2020, To Present
      Kyoto University, Institute for Integrated Radiation and Nuclear Science, 助教

    Language of Instruction

    • Japanese

    ID,URL

    researchmap URL

    list
      Last Updated :2025/04/29

      Research

      Research Topics, Overview of the research

      • Research Topics

        Development of evaluation method of metallic material characteristics, Basic research of materials for fast reactors, Development of neutron imaging and analysis technique

      Research Areas

      • Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Fluid engineering, 気液二相流
      • Energy, Nuclear engineering

      Papers

      • Effect of fin arrangement on pressure drop characteristics of two-phase flow in a finned rectangular channel.
        Shori OKUNAKA; Masaru SHINOZAKI; Naoya ODAIRA; Daisuke ITO; Kei ITO; Yasushi SAITO
        JAPANESE JOURNAL OF MULTIPHASE FLOW, 15 Sep. 2024
      • Long-Term Estimation of Depositions on Heating Surface During Boiling of Long-Life Coolant
        M. Shinozaki; D. Ito; N. Odaira; K. Ito; Y. Saito
        ASME Journal of Heat and Mass Transfer, 01 Nov. 2024
      • Introduction to Neutron Radiography Facilities at the Japan Research Reactor-3
        K Kurita; H Iikura; Y Tsuchikawa; T Kai; T Shinohara; N Odaira; D Ito; Y Saito; M Matsubayashi
        Journal of Physics: Conference Series, 01 Sep. 2023, Peer-reviewed
      • Visualization of local two-phase flow structure in a packed bed of spheres
        D Ito; N Odaira; K Ito; Y Saito
        Journal of Physics: Conference Series, 01 Sep. 2023, Peer-reviewed
      • Measurements of gas-liquid two-phase flow dynamics using high-speed neutron imaging
        D Ito; N Odaira; K Ito; Y Saito; K Kurita; H Iikura
        Journal of Physics: Conference Series, 01 Sep. 2023, Peer-reviewed
      • Development of Tracer Particles for Thermal Hydraulic Experiment by Neutron Imaging
        Y Saito; D Ito; N Odaira; K Kurita; H Iikura
        Journal of Physics: Conference Series, 01 Sep. 2023, Peer-reviewed
      • Cooling rate of reactant solution in a flow-type supercritical hydrothermal reactor estimated using neutron radiography
        Ryosuke Sasaki; Kosei Sato; Bo Xie; Seiichi Takami; Masaki Kubo; Takao Tsukada; Katsumi Sugimoto; Naoya Odaira; Daisuke Ito; Yasushi Saito
        Journal of Physics: Conference Series, 01 Sep. 2023
      • Measurement of Void Fraction Distribution in a Sphere-Packed Bed Using X-ray Imaging
        Seishiro YAMAMOTO; Naoya ODAIRA; Daisuke ITO; Kei ITO; Yasushi SAITO; Yuya IMAIZUMI; Kenichi MATSUBA; Kenji KAMIYAMA
        JAPANESE JOURNAL OF MULTIPHASE FLOW, 15 Mar. 2023
      • Visualization of Gas-Liquid Interfacial Behavior in a Narrow Channel Using High-Speed Neutron Imaging
        Daisuke ITO; Naoya ODAIRA; Kei ITO; Yasushi SAITO; Keisuke KURITA; Hiroshi IIKURA
        JAPANESE JOURNAL OF MULTIPHASE FLOW, 15 Mar. 2023
      • Effects of the mixer shape in a flow-type supercritical hydrothermal reactor as evaluated by neutron radiography and CeO2 nanoparticle synthesis
        Kosei Sato; Ryosuke Sasaki; Bo Xie; Seiichi Takami; Masaki Kubo; Takao Tsukada; Katsumi Sugimoto; Naoya Odaira; Daisuke Ito; Yasushi Saito
        Reaction Chemistry & Engineering, 2023
      • Characteristics of two-phase flow in packed bed systems
        Noriaki Yasugi; Akito Fujitsu; Naoya Odaira; Daisuke Ito; Kei Ito; Yasushi Saito
        International Conference on Nuclear Engineering, Proceedings, ICONE, 2021
      • Development of capacitance sensor for void fraction measurement in a packed bed of spheres
        Daisuke Ito; Naoya Odaira; Kei Ito; Yasushi Saito
        Flow Measurement and Instrumentation, Jan. 2023, Peer-reviewed
      • Development of a critical heat flux correlation based on a mechanistic model under subcooled flow boiling conditions
        Tadakatsu Yodo; Naoya Odaira; Kei Ito; Daisuke Ito; Yasushi Saito
        Journal of Nuclear Science and Technology, 14 Jul. 2022, Peer-reviewed
      • Pressure drop evaluation based on two-phase flow observation in packed bed system
        Noriaki Yasugi; Naoya Odaira; Daisuke Ito; Kei Ito; Yasushi Saito
        MECHANICAL ENGINEERING JOURNAL, Aug. 2022, Peer-reviewed
      • Spatial distribution and preferred orientation of crystalline microstructure of lead-bismuth eutectic
        Daisuke Ito; Hirotaka Sato; Naoya Odaira; Yasushi Saito; Joseph Don Parker; Takenao Shinohara; Tetsuya Kai; Kenichi Oikawa
        Journal of Nuclear Materials, Oct. 2022, Peer-reviewed
      • Evaluation of Gas Entrainment Flow Rate by Free Surface Vortex
        TORIKAWA Tomoaki; ODAIRA Naoya; ITO Daisuke; ITO Kei; SAITO Yasushi; MATSUSHITA Kentaro; EZURE Toshiki; TANAKA Masaaki
        JAPANESE JOURNAL OF MULTIPHASE FLOW, 2022, Peer-reviewed
      • Pressure Drop of Single-/Two-Phase Flow in Fin-Type Heat Sink
        ZHANG Huanran; ODAIRA Naoya; ITO Daisuke; ITO Kei; SAITO
        JAPANESE JOURNAL OF MULTIPHASE FLOW, 2022, Peer-reviewed
      • Behavior of Lead-Bismuth eutectic (LBE) expansion caused by phase transition in response to heat treatment
        Naoya Odaira; Takuma Fujiwara; Yuji Arita
        Nuclear Engineering and Design, Aug. 2020, Peer-reviewed
      • Characterization of mechanical strain induced by lead-bismuth eutectic (LBE) freezing in stainless steel cup
        Naoya Odaira; Shigeru Saito
        Heliyon, Feb. 2020, Peer-reviewed
      • The analytical study of inventories and physicochemical configuration of spallation products produced in Lead-Bismuth Eutectic of Accelerator Driven System
        Shinya Miyahara; Naoya Odaira; Yuji Arita; Fujio Maekawa; Hiroki Matsuda; Toshinobu Sasa; Shin-ichiro Meigo
        Nuclear Engineering and Design, Oct. 2019, Peer-reviewed
      • An Estimation of the Thermal Properties of Pu-Rich Metallic Fuel
        Naoya Odaira; Yuji Arita
        Advances in Materials Science and Engineering, 04 Sep. 2019, Peer-reviewed

      Misc.

      • 球充填層内気液二相流の圧力損失に及ぼす界面抗力項の影響
        水野知紘; 大平直也; 伊藤大介; 伊藤 啓; 齊藤泰司
        KURNS-EKR-19, Jan. 2024
      • A dynamic imaging of liquid metal-gas two phase flow using thermal neutron
        大平直也; 伊藤大介; 齊藤泰司
        検査技術, Dec. 2022
      • フィン型ヒートシンク内気液二相流の圧力損失の評価
        張煥然; 大平直也; 伊藤大介; 伊藤啓; 齊藤泰司
        KURNS-EKR-15, Jan. 2022
      • 球充填層内気液二相流の計測手法の高度化
        八杉憲彰; 大平直也; 伊藤大介; 伊藤啓; 齊藤泰司
        KURNS-EKR-15, Jan. 2022
      • 自由界面渦によるガス巻き込み現象の定量評価
        鳥川智; 大平直也; 伊藤大介; 伊藤啓; 齊藤泰司
        KURNS-EKR-15, Jan. 2022
      • LBE(鉛ビスマス共晶)の膨張とそれにより発生する内圧
        KURNS-EKR-10, Jan. 2021
      • Frost Formation on the Heat Exchanger Measured by Hybrid Radiography
        黒田陸斗; 松本亮介; 小田豊; 槇原拓郎; 斎藤泰司; 伊藤大介; 大平直也
        日本冷凍空調学会年次大会講演論文集(CD-ROM), 2021
      • Measurements of turbulence in a gas-liquid two-phase flow by using PIV methods and an electro-magnetic probe
        土田侑秀; 大平直也; 伊藤大介; 伊藤啓; 齊藤泰司
        KURNS-EKR (Web), Feb. 2021
      • Detailed structure of gas-liquid two-phase flow in a packed bed of spheres
        藤津光人; 大平直也; 伊藤大介; 伊藤啓; 齊藤泰司
        KURNS-EKR (Web), Feb. 2021
      • Visualization of Gas-Liquid Two-Phase Flow in a Packed Bed of Spheres
        藤津光人; 大平直也; 伊藤大介; 伊藤啓; 齊藤泰司; 今泉悠也; 松場賢一; 神山健司
        日本機械学会流体工学部門講演会講演論文集(CD-ROM), 2020
      • 小型電磁流速計とPIVを用いた気液二相乱流特性の計測
        土田侑秀; 大平直也; 伊藤大介; 伊藤啓; 齊藤泰司
        日本機械学会流体工学部門講演会講演論文集(CD-ROM), 98th, 2020

      Presentations

      • Long-term estimation of deposits on heating surface during boiling of long-life coolant
        Masaru Shinozaki; Daisuke Ito; Naoya Odaira; Kei Ito; Yasushi Saito
        The 12th International Symposium on Measurement Techniques for MultiPhase Flows
      • Effect of fin arrangement on pressure drop characteristics of single-/two-phase flows in a finned rectangular channel
        Shori Okunaka; Masaru Shinozaki; Naoya Odaira; Daisuke Ito; Kei Ito; Yasushi Saito
        12th International Symposium on Measurement Techniques for Multiphase Flow
      • A spatial distribution analysis of crystalline microstructure of solidified Lead-Bismuth eutectic by wavelength-resolved neutron imaging with machine learning
        Ayaka Ohashi; Hirotaka Sato; Takashi Kamiyama; Naoya Odaira; Daisuke Ito; Yasushi Saito
        日本原子力学会 2023年秋の大会, 06 Sep. 2023
      • Study on coolant behavior in damaged core of sodium- cooled fast reactor
        Tomohiro Mizuno; Naoya Odaira; Daisuke Ito; Kei Ito; Yasushi Saito; Yuya Imaizumi; Kenichi Matsuba; Kenji Kamiyama
        日本原子力学会 2023年秋の大会, 06 Sep. 2023
      • Examination of fast neutron imaging with fusion neutron source A-FNS (1) Simulation by PHITS code and verification experiment using J-PARC
        Naoya Odaira; Yusuke Tsuchikawa; Daisuke Ito; Yasushi Sasito; Takenao Shinohara; Yoshiaki Kiyanagi; Sarom Kwon; Masayuki Ohta; Satoshi Sato
        日本原子力学会 2023年秋の大会, 06 Sep. 2023
      • Effect of fin arrangement on pressure drop characteristics of two-phase flows in a finned rectangular channel
        Shori Okunaka; Naoya Odaira; Daisuke Ito; Kei Ito; Yasushi Saito; Masaru Shinozaki
        日本混相流学会 混相流シンポジウム2023
      • Advancement of Imaging Techniques Utilizing Neutron Characteristics
        Naoya Odaira; Daisuke Ito; Yasushi Saito
        第18回先進原⼦⼒科学技術に関する連携重点研究討論会, 07 Aug. 2023
      • Visualization and Measurement of Flow Field in a Spouted Bed by Neutron Imaging
        Yasushi Saito; Naoya Odaira; Daisuke Ito; Keisuke Kurita
        The 17th Asian Symposium on Visualization, 07 Jun. 2023
      • Observation of Nitrogen-Liquid Lead-Bismuth Eutectic Two-Phase Flow with Dynamic Neutron Imaging Technique and its Capability
        Naoya Odaira; Daisuke Ito; Yasushi Saito
        The 17th Asian Symposium on Visualization, 07 Jun. 2023
      • Visualization of flow structures in a rectangular spouted bed by neutron imaging
        Yasushi Saito; Daisuke Ito; Naoya Odaira; Kei Ito; Keisuke Kurita; Hiroshi Iikura
        The 11th International Conference on Multiphase Flow
      • Experimental study on gas entrainment by bathtub vortex
        Kei Ito; yoto; Daisuke Ito; Naoya Odaira; Yasushi Saito; Kelei Song; Toshiki Ezure; Kentarou Matsushita; Masaaki Tanaka
        The 11th International Conference on Multiphase Flow
      • Study on coolant behavior in damaged core of sodium-cooled fast reactor (7) Evaluation of local two-phase flow behavior in a simulated debris bed
        Naoya Odaira; Seishiro Yamamoto; Daisuke Ito; Kei Ito; Yasushi Saito; Yuya Imaizumi; Kenichi Matsuba; Kenji Kamiyama
        日本原子力学会 2023年春の大会
      • Study on coolant behavior in damaged core of sodium-cooled fast reactor (8) Examination of boiling experiments in a simulated debris bed
        Daisuke Ito; Naoya Odaira; Kei Ito; Yasushi Saito; Yuya Imaizumi; Kenichi Matsuba; Kenji Kamiyama
        日本原子力学会 2023年春の大会
      • 模擬デブリ内における気液二相流の局所流動評価
        大平直也; 伊藤大介; 伊藤啓; 齊藤泰司
        第18回若手研究者による研究発表会 原子力学会関西支部, 01 Mar. 2023
      • KUR における中性子イメージング装置の現状
        大平直也
        令和 4 年度 中性子イメージング専門研究会, 05 Jan. 2023
      • MEASUREMENTS OF PRESSURE DROP AND VOID FRACTION OF AIR-WATER TWO-PHASE FLOW IN A SPHERE-PACKED BED
        Seishiro Yamamoto; Naoya Odaira; Daisuke Ito; Kei Ito; Yasushi Saito; Yuya Imaizumi; Kenichi Matsuba; Kenji Kamiyama
        THAS12: The 12th Japan-Korea Symposium on Nuclear Thermal Hydraulics and Safety
      • Visualization of local two-phase flow structure in a packed bed of spheres
        Daisuke Ito; Naoya Odaira; Kei Ito; Yasushi Saito
        The 9th International Topical Meeting on Neutron Radiography (ITMNR-9)
      • Development of Tracer Particles for thermal hydraulic experiment by Neutron imaging
        Yasushi SAITO; Daisuke ITO; Naoya ODAIRA; Keisuke KURITA; Hiroshi IIKURA
        The 9th International Topical Meeting on Neutron Radiography (ITMNR-9)
      • Visualization and Measurement of Molten-Metal/Water Interaction by using high-speed neutron imaging
        Yasushi SAITO; Daisuke ITO; Naoya ODAIRA; Keisuke KURITA; Hiroshi IIKURA
        The 9th International Topical Meeting on Neutron Radiography (ITMNR-9)
      • Measurements of gas-liquid two-phase flow dynamics using high-speed neutron imaging
        Daisuke Ito; Naoya Odaira; Kei Ito; Yasushi Saito; Keisuke Kurita; Hiroshi Iikura
        The 9th International Topical Meeting on Neutron Radiography (ITMNR-9)
      • In situ Neutron Radiography on the Mixing Behavior in a Flow-type Reactor during Supercritical Hydrothermal Synthesis
        Seiichi Takami; Ken-ichi Sugioka; Masaki Kubo; Takao Tsukada; Katsumi Sugimoto; Nobuyuki Takenaka; Naoya Odaira; Daisuke Ito; Yasushi Saito
        The 9th International Topical Meeting on Neutron Radiography (ITMNR-9)
      • Development of a crystalline microstructure analysis method with machine learning in wavelength-resolved neutron imaging
        Ayaka Ohashi; Hirotaka Sato; Naoya Odaira; Daisuke Ito; Yasushi Saito; Takashi Kamiyama
        The 9th International Topical Meeting on Neutron Radiography (ITMNR-9)
      • Microstructure analysis of lead-bismuth eutectic by wavelength-resolved neutron imaging
        Naoya Odaira; Daisuke Ito; Yasushi Saito; Joseph Don Parker; Takenao Shinohara
        The 9th International Topical Meeting on Neutron Radiography (ITMNR-9)
      • VISUALIZATION AND MEASUREMENT OF TWO-PHASE FLOW IN A QUASI TWO-DIMENSIONAL PACKED BED SYSTEM
        Naoya Odaira; Daisuke Ito; Kei Ito; Yasushi Saito
        The 22nd Seoul National - Kyoto - Tsinghua University Thermal Engineering Conference, 09 Oct. 2022
      • Measurement of void fraction distribution in a sphere-packed bed using X-ray imaging
        山本 誠士郎; 大平 直也; 伊藤 大介; 伊藤 啓; 齊藤 泰司
        混相流シンポジウム2022
      • Effect of Pressure Gradient along Axial Direction of Vortex-Core on Gas Entrainment Flow Rate
        Tomoaki Torikawa; Naoya Odaira; Daisuke Ito; Kei Ito; Yasushi Saito; Kentaro Matsushita; Toshiki Ezure; Masaaki Tanaka
        日本原子力学会 2022年春の年会
      • Study on coolant behavior in damaged core of sodium-cooled fast reactor (6) Local void fraction measurement by using X-ray imaging in simulated debris bed
        Noriaki Yasugi; Naoya Odaira; Daisuke Ito; Kei Ito; Yasushi Saito; Yuya Imaizumi; Kenichi Matsuba; Kenji Kamiyama
        日本原子力学会 2022年春の大会
      • KUR イメージング設備の現状について
        大平直也
        令和 3 年度 中性子イメージング専門研究会, 28 Dec. 2021
      • PRESSURE DROP OF SINGLE-/TWO-PHASE FLOW IN FIN-TYPE HEAT SINK
        Huanran Zhang; Naoya Odaira; Daisuke Ito; Kei Ito; Yasushi Saito
        The 21st Seoul National - Kyoto - Tsinghua University Thermal Engineering Conference, 10 Oct. 2021
      • Long-term evaluation of deposition behavior on heating surface during boiling of ethylene glycol mixture fluid
        篠﨑 健; 伊藤 大介; 大平 直也; 伊藤 啓; 齊藤 泰司
        混相流シンポジウム2021
      • Frost Deposition Distribution Estimated by X-ray and Neutron Cooperative Imaging
        R. Kuroda; T. Makihara; Y. Oda; R. Matsumoto; N. Odaira; D. Ito; Y. Saito
        The Second Asian Conference on Thermal Sciences, 2nd ACTS
      • Characteristics of Two-Phase Flow in Packed Bed Systems
        Yasugi Noriaki; Fujitsu Akito; Odaira Naoya; Ito Daisuke; Ito Kei; Saito Yasushi
        2021 28th International Conference on Nuclear Engineering, 04 Aug. 2021

      Awards

      • 28 Aug. 2024
        NUTHOS-14 Best General Paper Award

      External funds: Kakenhi

      • Bubbles Behavior in Molten Lead-Bismuth Eutectic
        Grant-in-Aid for Early-Career Scientists
        Basic Section 31010:Nuclear engineering-related
        Kyoto University
        大平 直也
        From 01 Apr. 2023, To 31 Mar. 2025, Granted
        液体金属;二相流;気泡挙動
      • 透過型中性子イメージングを用いた3次元速度場計測法の開発
        Grant-in-Aid for Scientific Research (C)
        Basic Section 19010:Fluid engineering-related
        Kyoto University
        齊藤 泰司
        From 01 Apr. 2024, To 31 Mar. 2027, Granted
        中性子イメージング;デブリ冷却;速度計測
      • 海水塩濃度の塩水を用いた湛水栽培におけるコマツナの塩馴化機構
        Grant-in-Aid for Scientific Research (B)
        Basic Section 41040:Agricultural environmental engineering and agricultural information engineering-related
        Iwate University
        松嶋 卯月
        From 01 Apr. 2023, To 31 Mar. 2028, Granted
        植物水分生理;塩ストレス;水ポテンシャル;灌水法;養液栽培;もみ殻培地
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        Last Updated :2025/04/29

        Administration

        Faculty management (title, position)

        • From 01 Apr. 2023
          新試験研究炉開発・利用センター センター員
        • From 01 Apr. 2024
          学術公開委員会委員
        • From 01 Apr. 2022, To 31 Mar. 2024
          実験教室チーム員
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          Last Updated :2025/04/29

          Academic, Social Contribution

          Committee Memberships

          • From Apr. 2021, To Present
            企画小委員会, 日本原子力学会 熱流動部会

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