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Journal Articles

ARKADIA—For the Innovation of Advanced Nuclear Reactor Design

Hiroyuki Ohshima, Tai Asayama, Tomohiro Furukawa, Masaaki Tanaka, Akihiro Uchibori, Takashi Takata, Akiyuki Seki, Yasuhiro Enuma

ASME J of Nuclear Rad Sci. April 2023, 9(2): 025001.

Paper No: NERS-21-1157

DOI: https://doi.org/10.1115/1.4054726

Published Online: June 15, 2022

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Topics: Design, Optimization, Safety, Thermal hydraulics, Nuclear design, Nuclear reactors, Computer simulation

Proceedings Papers

ARKADIA – for the Innovation of Advanced Nuclear Reactor Design

Hiroyuki Ohshima, Tai Asayama, Tomohiro Furukawa, Masaaki Tanaka, Takashi Takata, Yasuhiro Enuma

Proc. ASME. ICONE28, Volume 1: Operating Plant Challenges, Successes, and Lessons Learned; Nuclear Plant Engineering; Advanced Reactors and Fusion; Small Modular and Micro-Reactors Technologies and Applications, V001T03A007, August 4–6, 2021

Paper No: ICONE28-64525

DOI: https://doi.org/10.1115/ICONE28-64525

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Topics: Artificial intelligence, Computer simulation, Innovation, Nuclear design, Nuclear reactors, Optimization, Design, Safety, Carbon, Coolants

Proceedings Papers

Development of Ex-Vessel Phenomena Analysis Model for Multi-Scenario Simulation System, SPECTRA

Akihiro Uchibori, Mitsuhiro Aoyagi, Takashi Takata, Hiroyuki Ohshima

Proc. ASME. ICONE2020, Volume 3: Student Paper Competition; Thermal-Hydraulics; Verification and Validation, V003T13A048, August 4–5, 2020

Paper No: ICONE2020-16818

DOI: https://doi.org/10.1115/ICONE2020-16818

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Topics: Accidents, Simulation, Sodium fast reactors, Spectra (Spectroscopy), Vessels

Proceedings Papers

Numerical Validation of AQUA-SF in SNL T3 Sodium Spray Fire Experiment

Masateru Sonehara, Mitsuhiro Aoyagi, Akihiro Uchibori, Takashi Takata, Hiroyuki Ohshima, Andrew J. Clark, David Louie

Proc. ASME. ICONE2020, Volume 1: Beyond Design Basis; Codes and Standards; Computational Fluid Dynamics (CFD); Decontamination and Decommissioning; Nuclear Fuel and Engineering; Nuclear Plant Engineering, V001T03A024, August 4–5, 2020

Paper No: ICONE2020-16851

DOI: https://doi.org/10.1115/ICONE2020-16851

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Topics: Combustion, Fire, Sodium, Sprays

Journal Articles

Subchannel Analysis of Thermal-Hydraulics in a Fuel Assembly With Inner Duct Structure of a Sodium-Cooled Fast Reactor

Norihiro Kikuchi, Yasutomo Imai, Ryuji Yoshikawa, Norihiro Doda, Masaaki Tanaka, Hiroyuki Ohshima

ASME J of Nuclear Rad Sci. April 2019, 5(2): 021001.

Paper No: NERS-17-1280

DOI: https://doi.org/10.1115/1.4042191

Published Online: March 15, 2019

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Topics: Ducts, Flow (Dynamics), Fuels, Manufacturing, Sodium, Temperature distribution, Temperature, Sodium fast reactors, Wire, Thermal hydraulics

Proceedings Papers

Study on Gas Entrainment From Unstable Drifting Vortexes on Liquid Surface

Moe Hirakawa, Yuichiro Kikuchi, Takaaki Sakai, Masaaki Tanaka, Hiroyuki Ohshima

Proc. ASME. ICONE26, Volume 9: Student Paper Competition, V009T16A091, July 22–26, 2018

Paper No: ICONE26-82477

DOI: https://doi.org/10.1115/ICONE26-82477

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Topics: Vortices, Flow (Dynamics), Computational fluid dynamics, Water, Reactor vessels, Sodium fast reactors, Coolants, Design, Design methodology, Evaluation methods

Proceedings Papers

Visualization Study on Droplet-Entrainment in a High-Speed Gas Jet Into a Liquid Pool

Taro Sugimoto, Shimpei Saito, Akiko Kaneko, Yutaka Abe, Akihiro Uchibori, Hiroyuki Ohshima

Proc. ASME. ICONE26, Volume 9: Student Paper Competition, V009T16A045, July 22–26, 2018

Paper No: ICONE26-81695

DOI: https://doi.org/10.1115/ICONE26-81695

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Topics: Drops, Visualization, Sodium, Flow (Dynamics), Steam, High pressure (Physics), Water, Liquid films, Shells, Sodium fast reactors

Proceedings Papers

Thermal-Hydraulic Analysis of Fuel Assembly With Inner Duct Structure of an Advanced Loop-Type Sodium-Cooled Fast Reactor Using ASFRE Code

Norihiro Kikuchi, Yasutomo Imai, Ryuji Yoshikawa, Norihiro Doda, Masaaki Tanaka, Hiroyuki Ohshima

Proc. ASME. ICONE25, Volume 8: Computational Fluid Dynamics (CFD) and Coupled Codes; Nuclear Education, Public Acceptance and Related Issues, V008T09A054, July 2–6, 2017

Paper No: ICONE25-67870

DOI: https://doi.org/10.1115/ICONE25-67870

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Topics: Ducts, Fuels, Manufacturing, Sodium fast reactors, Pins (Engineering), Flow (Dynamics), Temperature distribution, Design, Thermal hydraulics, Turbulence

Proceedings Papers

Velocity of Entrainments Formed by High Velocity Air Jet Flow in Stagnant Water

Masaaki Akabane, Yasuo Koizumi, Akihiro Uchibori, Hideki Kamide, Hiroyuki Ohshima

Proc. ASME. ICONE22, Volume 5: Innovative Nuclear Power Plant Design and New Technology Application; Student Paper Competition, V005T17A051, July 7–11, 2014

Paper No: ICONE22-30806

DOI: https://doi.org/10.1115/ICONE22-30806

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Topics: Air jets, Flow (Dynamics), Water, Vessels, Ear, Nozzles, Sodium, Boilers, Breeder reactors, Drops

Proceedings Papers

Multiphysics Analysis System for Tube Failure Accident in Steam Generator of Sodium-Cooled Fast Reactor

Akihiro Uchibori, Shin Kikuchi, Akikazu Kurihara, Hirotsugu Hamada, Hiroyuki Ohshima

Proc. ASME. ICONE21, Volume 3: Nuclear Safety and Security; Codes, Standards, Licensing and Regulatory Issues; Computational Fluid Dynamics and Coupled Codes, V003T10A045, July 29–August 2, 2013

Paper No: ICONE21-16692

DOI: https://doi.org/10.1115/ICONE21-16692

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Topics: Accidents, Boilers, Failure, Sodium fast reactors, Computer simulation, Heat transfer, Chemical reactions, Sodium, Water, Computers

Proceedings Papers

Structure and Erosion Characteristics of Underexpanded Inert-Gas Jets Impinging on a Single Cylinder Submerged in Liquid Sodium

Hideyuki Kudoh, Ken-ichiro Sugiyama, Tadashi Narabayashi, Hiroyuki Ohshima, Akikazu Kurihara

Proc. ASME. ICONE21, Volume 2: Plant Systems, Construction, Structures and Components; Next Generation Reactors and Advanced Reactors, V002T05A033, July 29–August 2, 2013

Paper No: ICONE21-16068

DOI: https://doi.org/10.1115/ICONE21-16068

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Topics: Cylinders, Erosion, Jets, Sodium, Drops, Flow (Dynamics), Visualization, Heat transfer, Steam, Boilers

Proceedings Papers

Investigation on Velocity Distribution Around the Wrapping Wire in an Inner Subchannel of Fuel Pin Bundle

Masahiro Nishimura, Hiroyuki Sato, Hideki Kamide, Hiroyuki Ohshima, Kazuyoshi Nagasawa, Yasutomo Imai

Proc. ASME. ICONE20-POWER2012, Volume 3: Thermal-Hydraulics; Turbines, Generators, and Auxiliaries, 299-308, July 30–August 3, 2012

Paper No: ICONE20-POWER2012-54404

DOI: https://doi.org/10.1115/ICONE20-POWER2012-54404

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Topics: Fuels, Wire

Proceedings Papers

Numerical Methods for Compressible Multiphase Flow With Sodium-Water Chemical Reaction

Akihiro Uchibori, Hiroyuki Ohshima

Proc. ASME. ICONE20-POWER2012, Volume 4: Codes, Standards, Licensing, and Regulatory Issues; Fuel Cycle, Radioactive Waste Management and Decommissioning; Computational Fluid Dynamics (CFD) and Coupled Codes; Instrumentation and Controls; Fuels and Combustion, Materials Handling, Emissions; Advanced Energy Systems and Renewables (Wind, Solar, Geothermal); Performance Testing and Performance Test Codes, 447-456, July 30–August 3, 2012

Paper No: ICONE20-POWER2012-54437

DOI: https://doi.org/10.1115/ICONE20-POWER2012-54437

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Topics: Chemical reactions, Multiphase flow, Numerical analysis, Sodium, Water, Drops, Boilers, Accidents, Computer simulation, Computer software

Proceedings Papers

Kinetic Study of Sodium-Water Reaction Phenomena by Differential Thermal Analysis

Shin Kikuchi, Hiroshi Seino, Akikazu Kurihara, Hiroyuki Ohshima

Proc. ASME. ICONE20-POWER2012, Volume 2: Plant Systems, Structures, and Components; Safety and Security; Next Generation Systems; Heat Exchangers and Cooling Systems, 281-289, July 30–August 3, 2012

Paper No: ICONE20-POWER2012-54134

DOI: https://doi.org/10.1115/ICONE20-POWER2012-54134

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Topics: Sodium, Thermal analysis, Water, Sodium fast reactors, Temperature, Heat transfer, Safety, Boilers, Chemical kinetics, Chemical reactions

Proceedings Papers

Visualization on Inert Gas Jets Impinging to a Glass Tube Submerged in Liquid Sodium

Hideyuki Kudoh, Ken-ichiro Sugiyama, Tadashi Narabayashi, Hiroyuki Ohshima, Akikazu Kurihara

Proc. ASME. ICONE20-POWER2012, Volume 5: Fusion Engineering; Student Paper Competition; Design Basis and Beyond Design Basis Events; Simple and Combined Cycles, 145-150, July 30–August 3, 2012

Paper No: ICONE20-POWER2012-54396

DOI: https://doi.org/10.1115/ICONE20-POWER2012-54396

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Topics: Glass, Jets, Sodium, Visualization, Drops, Nozzles, Water, Accidents, Cavities, Liquid films

Proceedings Papers

Visualization of Entrainment and Surface Behavior of High Speed Air Jet Blowing Out From a Hole to Stagnant Water

Kohei Nago, Yasuo Koizumi, Akihiro Uchibori, Hiroyuki Ohshima

Proc. ASME. ICONE20-POWER2012, Volume 5: Fusion Engineering; Student Paper Competition; Design Basis and Beyond Design Basis Events; Simple and Combined Cycles, 529-534, July 30–August 3, 2012

Paper No: ICONE20-POWER2012-55068

DOI: https://doi.org/10.1115/ICONE20-POWER2012-55068

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Topics: Air jets, Drops, Visualization, Water

Proceedings Papers

Numerical Simulations of Thermal-Mixing in T-Junction Piping System Using Large Eddy Simulation Approach

Masaaki Tanaka, Satoshi Murakami, Yasuhiro Miyake, Hiroyuki Ohshima

Proc. ASME. AJK2011, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D, 3641-3652, July 24–29, 2011

Paper No: AJK2011-18009

DOI: https://doi.org/10.1115/AJK2011-18009

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Topics: Computer simulation, Junctions, Large eddy simulation, Piping systems, Pipes, Temperature, Cycles, Eddies (Fluid dynamics), Fatigue, Fluids

Proceedings Papers

Study on Gas Entrainment Rate Into Liquid From Free Surface by Vortex

Yasuo Koizumi, Kei Ito, Hiroyuki Ohshima, Hiroyasu Ohtake

Proc. ASME. IMECE2010, Volume 7: Fluid Flow, Heat Transfer and Thermal Systems, Parts A and B, 837-842, November 12–18, 2010

Paper No: IMECE2010-39587

DOI: https://doi.org/10.1115/IMECE2010-39587

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Topics: Vortices, Vessels, Bubbles, Water, Flow (Dynamics), Bubbly flow, Pipes, Video cameras

Proceedings Papers

Study on Pipe Wastage Mechanism by Liquid Droplet Impingement Erosion II (Measurement of Erosion Rate)

William Khoo Chong Weng, Yuma Higashi, Tadashi Narabayashi, Kenichiro Sugiyama, Hiroyuki Ohshima, Akikazu Kurihara

Proc. ASME. ICONE18, 18th International Conference on Nuclear Engineering: Volume 4, Parts A and B, 865-872, May 17–21, 2010

Paper No: ICONE18-29887

DOI: https://doi.org/10.1115/ICONE18-29887

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Topics: Drops, Erosion, Pipes, Rotating disks, Water, Boiling water reactors, Corrosion, Density, Flow (Dynamics), Microscopes

Proceedings Papers

Thermal Hydraulics Behavior Around a Single Heated Rod With Sodium-Water Reaction (1)

Hideyuki Kudoh, Masanori Nishizaki, Ken-ichiro Sugiyama, Hiroyuki Ohshima

Proc. ASME. ICONE18, 18th International Conference on Nuclear Engineering: Volume 2, 527-532, May 17–21, 2010

Paper No: ICONE18-29388

DOI: https://doi.org/10.1115/ICONE18-29388

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Topics: Sodium, Thermal hydraulics, Water, Heat transfer, Liquid metal fast breeder reactors, Safety, Temperature, Boilers, Chemical reactions, Chemistry

Journal citation

NARROW

ARKADIA—For the Innovation of Advanced Nuclear Reactor Design

ARKADIA – for the Innovation of Advanced Nuclear Reactor Design

Development of Ex-Vessel Phenomena Analysis Model for Multi-Scenario Simulation System, SPECTRA

Numerical Validation of AQUA-SF in SNL T3 Sodium Spray Fire Experiment

Subchannel Analysis of Thermal-Hydraulics in a Fuel Assembly With Inner Duct Structure of a Sodium-Cooled Fast Reactor

Study on Gas Entrainment From Unstable Drifting Vortexes on Liquid Surface

Visualization Study on Droplet-Entrainment in a High-Speed Gas Jet Into a Liquid Pool

Thermal-Hydraulic Analysis of Fuel Assembly With Inner Duct Structure of an Advanced Loop-Type Sodium-Cooled Fast Reactor Using ASFRE Code

Velocity of Entrainments Formed by High Velocity Air Jet Flow in Stagnant Water

Multiphysics Analysis System for Tube Failure Accident in Steam Generator of Sodium-Cooled Fast Reactor

Structure and Erosion Characteristics of Underexpanded Inert-Gas Jets Impinging on a Single Cylinder Submerged in Liquid Sodium

Investigation on Velocity Distribution Around the Wrapping Wire in an Inner Subchannel of Fuel Pin Bundle

Numerical Methods for Compressible Multiphase Flow With Sodium-Water Chemical Reaction

Kinetic Study of Sodium-Water Reaction Phenomena by Differential Thermal Analysis

Visualization on Inert Gas Jets Impinging to a Glass Tube Submerged in Liquid Sodium

Visualization of Entrainment and Surface Behavior of High Speed Air Jet Blowing Out From a Hole to Stagnant Water

Numerical Simulations of Thermal-Mixing in T-Junction Piping System Using Large Eddy Simulation Approach

Study on Gas Entrainment Rate Into Liquid From Free Surface by Vortex

Study on Pipe Wastage Mechanism by Liquid Droplet Impingement Erosion II (Measurement of Erosion Rate)

Thermal Hydraulics Behavior Around a Single Heated Rod With Sodium-Water Reaction (1)

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