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Odaira, Naoya
Institute for Integrated Radiation and Nuclear Science (KURNS) Assistant Professor
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Last Updated :2025/12/19
Basic Information
Affiliated programs (koza)
Academic Degree
Research History
- From Apr. 2020, To PresentKyoto University, Institute for Integrated Radiation and Nuclear Science, 助教
Language of Instruction
ID,URL
ORCID ID
J-Global ID
Researcher number
60881084
researchmap URL
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Last Updated :2025/12/19
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
- Analysis of strain distribution of lead–bismuth eutectic inside a stainless steel cup by wavelength-resolved neutron imagingNaoya Odaira; Katsuaki Kodama; Daisuke Ito; Yasushi Saito; Joseph Don Parker; Takenao ShinoharaNuclear Materials and Energy, Dec. 2025
- Core Neutronics Analysis of Passive Reactivity Control Device IGEM for MoveluX Core with a Measurement and Observation of Adhered Liquid MetalRei Kimura; Daisuke Ito; Naoya Odaira; Kei Ito; Yasushi Saito; Shohei KanamuraNuclear Technology, 20 May 2025
- 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 SAITOJAPANESE JOURNAL OF MULTIPHASE FLOW, 15 Sep. 2024
- Long-Term Estimation of Depositions on Heating Surface During Boiling of Long-Life CoolantM. Shinozaki; D. Ito; N. Odaira; K. Ito; Y. SaitoASME Journal of Heat and Mass Transfer, 01 Nov. 2024
- Introduction to Neutron Radiography Facilities at the Japan Research Reactor-3K Kurita; H Iikura; Y Tsuchikawa; T Kai; T Shinohara; N Odaira; D Ito; Y Saito; M MatsubayashiJournal of Physics: Conference Series, 01 Sep. 2023, Peer-reviewed
- Visualization of local two-phase flow structure in a packed bed of spheresD Ito; N Odaira; K Ito; Y SaitoJournal of Physics: Conference Series, 01 Sep. 2023, Peer-reviewed
- Measurements of gas-liquid two-phase flow dynamics using high-speed neutron imagingD Ito; N Odaira; K Ito; Y Saito; K Kurita; H IikuraJournal of Physics: Conference Series, 01 Sep. 2023, Peer-reviewed
- Development of Tracer Particles for Thermal Hydraulic Experiment by Neutron ImagingY Saito; D Ito; N Odaira; K Kurita; H IikuraJournal of Physics: Conference Series, 01 Sep. 2023, Peer-reviewed
- Cooling rate of reactant solution in a flow-type supercritical hydrothermal reactor estimated using neutron radiographyRyosuke Sasaki; Kosei Sato; Bo Xie; Seiichi Takami; Masaki Kubo; Takao Tsukada; Katsumi Sugimoto; Naoya Odaira; Daisuke Ito; Yasushi SaitoJournal of Physics: Conference Series, 01 Sep. 2023
- Measurement of Void Fraction Distribution in a Sphere-Packed Bed Using X-ray ImagingSeishiro YAMAMOTO; Naoya ODAIRA; Daisuke ITO; Kei ITO; Yasushi SAITO; Yuya IMAIZUMI; Kenichi MATSUBA; Kenji KAMIYAMAJAPANESE JOURNAL OF MULTIPHASE FLOW, 15 Mar. 2023
- Visualization of Gas-Liquid Interfacial Behavior in a Narrow Channel Using High-Speed Neutron ImagingDaisuke ITO; Naoya ODAIRA; Kei ITO; Yasushi SAITO; Keisuke KURITA; Hiroshi IIKURAJAPANESE 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 synthesisKosei Sato; Ryosuke Sasaki; Bo Xie; Seiichi Takami; Masaki Kubo; Takao Tsukada; Katsumi Sugimoto; Naoya Odaira; Daisuke Ito; Yasushi SaitoReaction Chemistry & Engineering, 2023
- Characteristics of two-phase flow in packed bed systemsNoriaki Yasugi; Akito Fujitsu; Naoya Odaira; Daisuke Ito; Kei Ito; Yasushi SaitoInternational Conference on Nuclear Engineering, Proceedings, ICONE, 2021
- Development of capacitance sensor for void fraction measurement in a packed bed of spheresDaisuke Ito; Naoya Odaira; Kei Ito; Yasushi SaitoFlow Measurement and Instrumentation, Jan. 2023, Peer-reviewed
- Development of a critical heat flux correlation based on a mechanistic model under subcooled flow boiling conditionsTadakatsu Yodo; Naoya Odaira; Kei Ito; Daisuke Ito; Yasushi SaitoJournal of Nuclear Science and Technology, 14 Jul. 2022, Peer-reviewed
- Pressure drop evaluation based on two-phase flow observation in packed bed systemNoriaki Yasugi; Naoya Odaira; Daisuke Ito; Kei Ito; Yasushi SaitoMECHANICAL ENGINEERING JOURNAL, Aug. 2022, Peer-reviewed
- Spatial distribution and preferred orientation of crystalline microstructure of lead-bismuth eutecticDaisuke Ito; Hirotaka Sato; Naoya Odaira; Yasushi Saito; Joseph Don Parker; Takenao Shinohara; Tetsuya Kai; Kenichi OikawaJournal of Nuclear Materials, Oct. 2022, Peer-reviewed
- Evaluation of Gas Entrainment Flow Rate by Free Surface VortexTORIKAWA Tomoaki; ODAIRA Naoya; ITO Daisuke; ITO Kei; SAITO Yasushi; MATSUSHITA Kentaro; EZURE Toshiki; TANAKA MasaakiJAPANESE JOURNAL OF MULTIPHASE FLOW, 2022, Peer-reviewed
- Pressure Drop of Single-/Two-Phase Flow in Fin-Type Heat SinkZHANG Huanran; ODAIRA Naoya; ITO Daisuke; ITO Kei; SAITOJAPANESE JOURNAL OF MULTIPHASE FLOW, 2022, Peer-reviewed
- Behavior of Lead-Bismuth eutectic (LBE) expansion caused by phase transition in response to heat treatmentNaoya Odaira; Takuma Fujiwara; Yuji AritaNuclear Engineering and Design, Aug. 2020, Peer-reviewed
- Characterization of mechanical strain induced by lead-bismuth eutectic (LBE) freezing in stainless steel cupNaoya Odaira; Shigeru SaitoHeliyon, Feb. 2020, Peer-reviewed
- The analytical study of inventories and physicochemical configuration of spallation products produced in Lead-Bismuth Eutectic of Accelerator Driven SystemShinya Miyahara; Naoya Odaira; Yuji Arita; Fujio Maekawa; Hiroki Matsuda; Toshinobu Sasa; Shin-ichiro MeigoNuclear Engineering and Design, Oct. 2019, Peer-reviewed
- An Estimation of the Thermal Properties of Pu-Rich Metallic FuelNaoya Odaira; Yuji AritaAdvances 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 coolantMasaru Shinozaki; Daisuke Ito; Naoya Odaira; Kei Ito; Yasushi SaitoThe 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 channelShori Okunaka; Masaru Shinozaki; Naoya Odaira; Daisuke Ito; Kei Ito; Yasushi Saito12th 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 learningAyaka 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 reactorTomohiro 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-PARCNaoya 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 channelShori 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 CharacteristicsNaoya 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 ImagingYasushi Saito; Naoya Odaira; Daisuke Ito; Keisuke KuritaThe 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 CapabilityNaoya Odaira; Daisuke Ito; Yasushi SaitoThe 17th Asian Symposium on Visualization, 07 Jun. 2023
- Visualization of flow structures in a rectangular spouted bed by neutron imagingYasushi Saito; Daisuke Ito; Naoya Odaira; Kei Ito; Keisuke Kurita; Hiroshi IikuraThe 11th International Conference on Multiphase Flow
- Experimental study on gas entrainment by bathtub vortexKei Ito; yoto; Daisuke Ito; Naoya Odaira; Yasushi Saito; Kelei Song; Toshiki Ezure; Kentarou Matsushita; Masaaki TanakaThe 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 bedNaoya 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 bedDaisuke 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 BEDSeishiro Yamamoto; Naoya Odaira; Daisuke Ito; Kei Ito; Yasushi Saito; Yuya Imaizumi; Kenichi Matsuba; Kenji KamiyamaTHAS12: The 12th Japan-Korea Symposium on Nuclear Thermal Hydraulics and Safety
- Visualization of local two-phase flow structure in a packed bed of spheresDaisuke Ito; Naoya Odaira; Kei Ito; Yasushi SaitoThe 9th International Topical Meeting on Neutron Radiography (ITMNR-9)
- Development of Tracer Particles for thermal hydraulic experiment by Neutron imagingYasushi SAITO; Daisuke ITO; Naoya ODAIRA; Keisuke KURITA; Hiroshi IIKURAThe 9th International Topical Meeting on Neutron Radiography (ITMNR-9)
- Visualization and Measurement of Molten-Metal/Water Interaction by using high-speed neutron imagingYasushi SAITO; Daisuke ITO; Naoya ODAIRA; Keisuke KURITA; Hiroshi IIKURAThe 9th International Topical Meeting on Neutron Radiography (ITMNR-9)
- Measurements of gas-liquid two-phase flow dynamics using high-speed neutron imagingDaisuke Ito; Naoya Odaira; Kei Ito; Yasushi Saito; Keisuke Kurita; Hiroshi IikuraThe 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 SynthesisSeiichi Takami; Ken-ichi Sugioka; Masaki Kubo; Takao Tsukada; Katsumi Sugimoto; Nobuyuki Takenaka; Naoya Odaira; Daisuke Ito; Yasushi SaitoThe 9th International Topical Meeting on Neutron Radiography (ITMNR-9)
- Development of a crystalline microstructure analysis method with machine learning in wavelength-resolved neutron imagingAyaka Ohashi; Hirotaka Sato; Naoya Odaira; Daisuke Ito; Yasushi Saito; Takashi KamiyamaThe 9th International Topical Meeting on Neutron Radiography (ITMNR-9)
- Microstructure analysis of lead-bismuth eutectic by wavelength-resolved neutron imagingNaoya Odaira; Daisuke Ito; Yasushi Saito; Joseph Don Parker; Takenao ShinoharaThe 9th International Topical Meeting on Neutron Radiography (ITMNR-9)
- VISUALIZATION AND MEASUREMENT OF TWO-PHASE FLOW IN A QUASI TWO-DIMENSIONAL PACKED BED SYSTEMNaoya Odaira; Daisuke Ito; Kei Ito; Yasushi SaitoThe 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 RateTomoaki 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 bedNoriaki 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 SINKHuanran Zhang; Naoya Odaira; Daisuke Ito; Kei Ito; Yasushi SaitoThe 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 ImagingR. Kuroda; T. Makihara; Y. Oda; R. Matsumoto; N. Odaira; D. Ito; Y. SaitoThe Second Asian Conference on Thermal Sciences, 2nd ACTS
- Characteristics of Two-Phase Flow in Packed Bed SystemsYasugi Noriaki; Fujitsu Akito; Odaira Naoya; Ito Daisuke; Ito Kei; Saito Yasushi2021 28th International Conference on Nuclear Engineering, 04 Aug. 2021
Awards
External funds: Kakenhi
- Bubbles Behavior in Molten Lead-Bismuth EutecticGrant-in-Aid for Early-Career ScientistsBasic Section 31010:Nuclear engineering-relatedKyoto University大平 直也From 01 Apr. 2023, To 31 Mar. 2026, Granted液体金属;気泡挙動;中性子イメージング;二相流
- 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-relatedKyoto 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-relatedIwate University松嶋 卯月From 01 Apr. 2024, To 31 Mar. 2028, Granted塩ストレス;順化;水資源活用;植物水分生理;水ポテンシャル;コマツナ;馴化;灌水法;養液栽培;もみ殻培地
