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Kazuya Koyama
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Proceedings Papers

Numerical Simulations on Hydrodynamic Process of Melt Jet Breakup and Fragmentation With the Two-Phase Lattice Boltzmann Method

Shimpei Saito, Yutaka Abe, Akiko Kaneko, Alessandro De Rosis, Alessio Festuccia, Kazuya Koyama
Proc. ASME. ICONE26, Volume 8: Computational Fluid Dynamics (CFD); Nuclear Education and Public Acceptance, V008T09A021, July 22–26, 2018
Paper No: ICONE26-81663
DOI: https://doi.org/10.1115/ICONE26-81663
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Topics: Computer simulation, Lattice Boltzmann methods, Accidents, Engineering simulation, Numerical stability, Resolution (Optics), Simulation, Sodium fast reactors, Stability
Proceedings Papers

Lattice Boltzmann Simulation of Jet Breakup and Droplet Formation in Immiscible Liquid-Liquid System

Shimpei Saito, Yutaka Abe, Akiko Kaneko, Yuzuru Iwasawa, Kazuya Koyama
Proc. ASME. ICONE25, Volume 6: Thermal-Hydraulics, V006T08A052, July 2–6, 2017
Paper No: ICONE25-66718
DOI: https://doi.org/10.1115/ICONE25-66718
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Topics: Drops, Lattice Boltzmann methods, Simulation, Accidents, Coolants, Numerical stability, Sodium fast reactors
Proceedings Papers

Jet Breakup and Droplet Formation in Immiscible Liquid-Liquid System

Shimpei Saito, Yuzuru Iwasawa, Yutaka Abe, Akiko Kaneko, Tetsuya Kanagawa, Hideki Nariai, Kazuya Koyama
Proc. ASME. ICONE24, Volume 4: Computational Fluid Dynamics (CFD) and Coupled Codes; Decontamination and Decommissioning, Radiation Protection, Shielding, and Waste Management; Workforce Development, Nuclear Education and Public Acceptance; Mitigation Strategies for Beyond Design Basis Events; Risk Management, V004T13A010, June 26–30, 2016
Paper No: ICONE24-60634
DOI: https://doi.org/10.1115/ICONE24-60634
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Topics: Drops, Accidents, Sodium fast reactors, Visualization, Fluids, Heat, Image processing, Jets, Nozzles, Safety
Proceedings Papers

Effect of Solidification on Molten Material Jet Behavior in Coolant

Yuzuru Iwasawa, Yutaka Abe, Akiko Kaneko, Shimpei Saito, Hideki Nariai, Eiji Matsuo, Hiroshi Sakaba, Ken-ichi Ebihara, Kazuya Koyama, Kazuhiro Itoh
Proc. ASME. ICONE22, Volume 6: Nuclear Education, Public Acceptance and Related Issues; Instrumentation and Controls (I&C); Fusion Engineering; Beyond Design Basis Events, V006T15A003, July 7–11, 2014
Paper No: ICONE22-30036
DOI: https://doi.org/10.1115/ICONE22-30036
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Topics: Coolants, Solidification, Temperature, Fuels, Melting point, Accidents, Water, Alloys, Breeder reactors, Design
Proceedings Papers

Influence of Hydrodynamic Interaction on Jet Breakup and Fragmentation Behavior

Shimpei Saito, Yutaka Abe, Akiko Kaneko, Yuzuru Iwasawa, Eiji Matsuo, Ken-ichi Ebihara, Hiroshi Sakaba, Kazuya Koyama, Hideki Nariai
Proc. ASME. ICONE22, Volume 5: Innovative Nuclear Power Plant Design and New Technology Application; Student Paper Competition, V005T17A005, July 7–11, 2014
Paper No: ICONE22-30028
DOI: https://doi.org/10.1115/ICONE22-30028
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Topics: Accidents, Air entrainment, Breeder reactors, Coolants, Cooling, Fluids, Fluorescence, Heat, Lasers, Nozzles
Proceedings Papers

Influence of the Fragmentation Behavior on Molten Material Jet Breakup in Coolant

Yuzuru Iwasawa, Yutaka Abe, Akiko Kaneko, Taihei Kuroda, Eiji Matsuo, Kenichi Ebihara, Hiroshi Sakaba, Kazuya Koyama, Kazuhiro Itoh, Hideki Nariai
Proc. ASME. ICONE21, Volume 6: Beyond Design Basis Events; Student Paper Competition, V006T15A008, July 29–August 2, 2013
Paper No: ICONE21-15633
DOI: https://doi.org/10.1115/ICONE21-15633
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Topics: Coolants, Solidification, Accidents, Alloys, Sodium, Tin, Water, Breeder reactors, Density, Design
Proceedings Papers

Estimation of Fragmentation on Jet Breakup in Coolant

Taihei Kuroda, Yutaka Abe, Akiko Kaneko, Iwasawa Yuzuru, Hideki Nariai, Hiroshi Sakaba, Kazuya Koyama, Eiji Matsuo
Proc. ASME. ICONE20-POWER2012, Volume 5: Fusion Engineering; Student Paper Competition; Design Basis and Beyond Design Basis Events; Simple and Combined Cycles, 157-166, July 30–August 3, 2012
Paper No: ICONE20-POWER2012-54399
DOI: https://doi.org/10.1115/ICONE20-POWER2012-54399
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Topics: Coolants, Water, Waves, Accidents, Flow (Dynamics), Sodium, Vorticity, Breeder reactors, Density, Drops
Proceedings Papers

Jet Breakup Behavior With Surface Solidification

Yuzuru Iwasawa, Yutaka Abe, Akiko Kaneko, Taihei Kuroda, Eiji Matsuo, Hideki Nariai, Kazuya Koyama, Hiroshi Sakaba, Kazuhiro Itoh
Proc. ASME. ICONE20-POWER2012, Volume 5: Fusion Engineering; Student Paper Competition; Design Basis and Beyond Design Basis Events; Simple and Combined Cycles, 175-184, July 30–August 3, 2012
Paper No: ICONE20-POWER2012-54412
DOI: https://doi.org/10.1115/ICONE20-POWER2012-54412
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Topics: Solidification
Proceedings Papers

Experimental Study on Jet Breakup Behavior With Surface Solidification

Takashi Wada, Yutaka Abe, Akiko Kaneko, Yuta Uchiyama, Hideki Nariai, Makoto Yamagishi, Kazuya Koyama, Kazuhiro Itoh
Proc. ASME. ICONE18, 18th International Conference on Nuclear Engineering: Volume 2, 635-644, May 17–21, 2010
Paper No: ICONE18-29618
DOI: https://doi.org/10.1115/ICONE18-29618
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Topics: Accidents, Alloys, Breeder reactors, Coolants, Density, Design, Heat, Image processing, Reactor vessels, Safety
Proceedings Papers

Experimental Study on Influence of Interfacial Behavior on Jet Surface Fragmentation

Yuta Uchiyama, Yutaka Abe, Akiko Kaneko, Hideki Nariai, Makoto Yamagishi, Eiji Matsuo, Kazuya Koyama, Kazuhiro Itoh
Proc. ASME. ICONE17, Volume 4: Codes, Standards, Licensing and Regulatory Issues; Student Paper Competition, 433-442, July 12–16, 2009
Paper No: ICONE17-75307
DOI: https://doi.org/10.1115/ICONE17-75307
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Topics: Accidents, Breeder reactors, Coolants, Design, Flow (Dynamics), Fluids, Heat, Internal flow, Particulate matter, Phase transition temperature
Proceedings Papers

Visual Observation of Fragmentation Behavior on Molten Material Jet Surface in Coolant

Yuta Uchiyama, Yutaka Abe, Akiko Fujiwara, Hideki Nariai, Eiji Matsuo, Keiko Chitose, Kazuya Koyama, Kazuhiro Itoh
Proc. ASME. ICONE16, Volume 2: Fuel Cycle and High Level Waste Management; Computational Fluid Dynamics, Neutronics Methods and Coupled Codes; Student Paper Competition, 797-806, May 11–15, 2008
Paper No: ICONE16-48359
DOI: https://doi.org/10.1115/ICONE16-48359
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Topics: Coolants, Water, Internal flow, Waves, Accidents, Flow (Dynamics), Sodium, Breeder reactors, Design, Fluids
Proceedings Papers

Study on the Interaction of Molten Metal and a Coolant

Tetsuya Kizu, Yutaka Abe, Hideki Nariai, Keiko Chitose, Kazuya Koyama
Proc. ASME. ICONE10, 10th International Conference on Nuclear Engineering, Volume 4, 999-1003, April 14–18, 2002
Paper No: ICONE10-22752
DOI: https://doi.org/10.1115/ICONE10-22752
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Topics: Coolants, Metals, Accidents, Boiling, Cooling, Breeder reactors, Heat, Reactor vessels, Water
Proceedings Papers

Study on Jet Breakup Behavior at Core Disruptive Accident for Fast Breeder Reactor

Eiji Matsuo, Yutaka Abe, Hideki Nariai, Keiko Chitose, Kazuya Koyama, Kazuhiro Itoh
Proc. ASME. ICONE14, Volume 4: Computational Fluid Dynamics, Neutronics Methods and Coupled Codes; Student Paper Competition, 555-563, July 17–20, 2006
Paper No: ICONE14-89234
DOI: https://doi.org/10.1115/ICONE14-89234
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Topics: Accidents, Breeder reactors, Coolants, Cooling, Water, Alloys, Image processing, Nozzles, Video cameras