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Seiichi Koshizuka
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Proceedings Papers

Effects of Flash Boiling in Nozzle Flow of GDI Injector on Air/Fuel Mixture

Eiji Ishii, Kazuki Yoshimura, Seiichi Koshizuka, Akihiro Sekine, Shota Sugihara
Proc. ASME. ICEF2018, Volume 2: Emissions Control Systems; Instrumentation, Controls, and Hybrids; Numerical Simulation; Engine Design and Mechanical Development, V002T06A002, November 4–7, 2018
Paper No: ICEF2018-9531
DOI: https://doi.org/10.1115/ICEF2018-9531
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Topics: Boiling, Ejectors, Flow (Dynamics), Fuels, Nozzles, Sprays, Plumes (Fluid dynamics), Simulation, Cavitation, Gasoline
Proceedings Papers

Numerical Study on Coarse Grain Modeling of the DEM for Industrial Scale Gas-Solid Flow Systems

Mikio Sakai, Yoshinori Yamada, Yusuke Shigeto, Shin Mizutani, Shao Yang, Kazuya Shibata, Seiichi Koshizuka
Proc. ASME. AJK2011, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D, 3187-3192, July 24–29, 2011
Paper No: AJK2011-12014
DOI: https://doi.org/10.1115/AJK2011-12014
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Topics: Discrete element methods, Flow (Dynamics), Modeling, Particulate matter, Cohesion, Computer simulation, Newton's laws of motion, Particle size, Simulation results, Two-phase flow
Proceedings Papers

Study on the Particle Behavior in a Screw Conveyer System by the Discrete Element Method

Yusuke Shigeto, Mikio Sakai, Shin Mizutani, Seiichi Koshizuka, Shuji Matsusaka
Proc. ASME. AJK2011, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D, 3193-3198, July 24–29, 2011
Paper No: AJK2011-12015
DOI: https://doi.org/10.1115/AJK2011-12015
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Topics: Discrete element methods, Particulate matter, Screws, Algorithms, Simulation, Numerical analysis, Design, Thread
Proceedings Papers

Validation of Code System DRAWTHREE-FAC for Evaluation of Wall Thinning due to Flow Accelerated Corrosion by PWR Feed Water Piping Analysis

Masanori Naitoh, Shunsuke Uchida, Hidetoshi Okada, Seiichi Koshizuka
Proc. ASME. PVP2011, Volume 6: Materials and Fabrication, Parts A and B, 1385-1389, July 17–21, 2011
Paper No: PVP2011-57120
DOI: https://doi.org/10.1115/PVP2011-57120
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Topics: Corrosion, Feedwater, Flow (Dynamics), Pipes, Pressurized water reactors, Computational fluid dynamics, Boundary layers, Mass transfer, Wall thickness, Junctions
Proceedings Papers

Detailed Analyses of Specific Phenomena in Core Disruptive Accidents of Sodium-Cooled Fast Reactors by the COMPASS Code

Koji Morita, Shuai Zhang, Tatsumi Arima, Seiichi Koshizuka, Yoshiharu Tobita, Hidemasa Yamano, Takahiro Ito, Noriyuki Shirakawa, Fusao Inoue, Hiroaki Yugo, Masanori Naitoh, Hidetoshi Okada, Yuichi Yamamoto, Masashi Himi, Etsujo Hirano, Sensuke Shimizu, Masaya Oue
Proc. ASME. ICONE18, 18th International Conference on Nuclear Engineering: Volume 4, Parts A and B, 855-863, May 17–21, 2010
Paper No: ICONE18-29886
DOI: https://doi.org/10.1115/ICONE18-29886
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Topics: Accidents, Sodium fast reactors, Failure, Fuels, Ducts, Freezing, Particulate matter, Simulation, Steel, Boiling
Proceedings Papers

Evaluation of Wall Thinning of PWR Feed Water Piping With the Coupled Model of Static Electrochemical Analysis and Dynamic Double Oxide Layer Analysis

Masanori Naitoh, Shunsuke Uchida, Hidetoshi Okada, Taku Ohira, Seiichi Koshizuka
Proc. ASME. PVP2010, ASME 2010 Pressure Vessels and Piping Conference: Volume 6, Parts A and B, 1243-1252, July 18–22, 2010
Paper No: PVP2010-25517
DOI: https://doi.org/10.1115/PVP2010-25517
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Topics: Electrochemical analysis, Feedwater, Pipes, Pressurized water reactors, Mass transfer, Computational fluid dynamics, Flow (Dynamics), Turbulence, Boilers, Boundary layers
Proceedings Papers

Evaluation of Wall Thinning Rate Due to Flow Accelerated Corrosion With the Coupled Models of Electrochemical Analysis and Double Oxide Layer Analysis

Masanori Naitoh, Shunsuke Uchida, Yasushi Uehara, Hidetoshi Okada, Seiichi Koshizuka
Proc. ASME. PVP2009, Volume 6: Materials and Fabrication, Parts A and B, 887-895, July 26–30, 2009
Paper No: PVP2009-77583
DOI: https://doi.org/10.1115/PVP2009-77583
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Topics: Corrosion, Electrochemical analysis, Flow (Dynamics), Countermeasures, Current density, Electrochemistry, Electrolytic corrosion, Feedwater, Mass transfer, Optimization
Proceedings Papers

Next Generation Safety Analysis Methods for SFRs—(5) Structural Mechanics Models of COMPASS Code and Verification Analyses

Noriyuki Shirakawa, Yasushi Uehara, Masanori Naitoh, Hidetoshi Okada, Yuichi Yamamoto, Seiichi Koshizuka
Proc. ASME. ICONE17, Volume 5: Fuel Cycle and High and Low Level Waste Management and Decommissioning; Computational Fluid Dynamics (CFD), Neutronics Methods and Coupled Codes; Instrumentation and Control, 425-434, July 12–16, 2009
Paper No: ICONE17-75532
DOI: https://doi.org/10.1115/ICONE17-75532
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Topics: Safety, Sodium fast reactors, Structural analysis, Structural mechanics, Design, Fluid dynamics, Fracture (Materials), Fracture (Process), Particulate matter, Phase transitions
Proceedings Papers

Next Generation Safety Analysis Methods for SFRs—(6) SCARABEE BE+3 Analysis With SIMMER-III and COMPASS Codes Featuring Duct-Wall Failure

Yasushi Uehara, Noriyuki Shirakawa, Masanori Naitoh, Hidetoshi Okada, Hidemasa Yamano, Yoshiharu Tobita, Yuichi Yamamoto, Seiichi Koshizuka
Proc. ASME. ICONE17, Volume 5: Fuel Cycle and High and Low Level Waste Management and Decommissioning; Computational Fluid Dynamics (CFD), Neutronics Methods and Coupled Codes; Instrumentation and Control, 435-444, July 12–16, 2009
Paper No: ICONE17-75533
DOI: https://doi.org/10.1115/ICONE17-75533
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Topics: Ducts, Failure, Safety, Sodium fast reactors, Fuels, Model development, Accidents, Freezing, Mesoscopic systems, Metals
Proceedings Papers

Next Generation Safety Analysis Methods for SFRs—(1) Brief Introduction of the Project and Basic Study for Algorithm of Particle Method

Seiichi Koshizuka
Proc. ASME. ICONE17, Volume 5: Fuel Cycle and High and Low Level Waste Management and Decommissioning; Computational Fluid Dynamics (CFD), Neutronics Methods and Coupled Codes; Instrumentation and Control, 479-485, July 12–16, 2009
Paper No: ICONE17-75556
DOI: https://doi.org/10.1115/ICONE17-75556
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Topics: Algorithms, Particulate matter, Safety, Sodium fast reactors, Boundary-value problems, Flow (Dynamics), Fuels, Metals, Accidents, Cladding systems (Building)
Proceedings Papers

Next Generation Safety Analysis Methods for SFRs—(3) Thermal Hydraulics Models of COMPASS Code and Experimental Analyses

Yuichi Yamamoto, Etsujo Hirano, Masaya Oue, Sensuke Shimizu, Noriyuki Shirakawa, Seiichi Koshizuka, Koji Morita, Hidemasa Yamano, Yoshiharu Tobita
Proc. ASME. ICONE17, Volume 5: Fuel Cycle and High and Low Level Waste Management and Decommissioning; Computational Fluid Dynamics (CFD), Neutronics Methods and Coupled Codes; Instrumentation and Control, 409-418, July 12–16, 2009
Paper No: ICONE17-75521
DOI: https://doi.org/10.1115/ICONE17-75521
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Topics: Experimental analysis, Safety, Sodium fast reactors, Thermal hydraulics, Accidents, Computers, Conceptual design, Particulate matter, Physics
Proceedings Papers

R&D of the Next Generation Safety Analysis Methods for Fast Reactors With New Computational Science and Technology: Part 2 — Development and Verification of Thermo-Hydrodynamics Module of the COMPASS Code

Yuichi Yamamoto, Etsujo Hirano, Masaya Oue, Sensuke Shimizu, Noriyuki Shirakawa, Seiichi Koshizuka, Koji Morita
Proc. ASME. ICONE16, Volume 2: Fuel Cycle and High Level Waste Management; Computational Fluid Dynamics, Neutronics Methods and Coupled Codes; Student Paper Competition, 359-367, May 11–15, 2008
Paper No: ICONE16-48485
DOI: https://doi.org/10.1115/ICONE16-48485
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Topics: Accidents, Computers, Conceptual design, Fast neutron reactors, Hydrodynamics, Particulate matter, Physics, Safety, Scientific computing, Sodium fast reactors
Proceedings Papers

R&D of the Next Generation Safety Analysis Methods for Fast Reactors With New Computational Science and Technology: 1 — Introduction of the Project and Development of Structural Mechanics Module

Seiichi Koshizuka, Jie Liu, Noriyuki Shirakawa, Yasushi Uehara, Masanori Naitoh, Yuichi Yamamoto
Proc. ASME. ICONE16, Volume 2: Fuel Cycle and High Level Waste Management; Computational Fluid Dynamics, Neutronics Methods and Coupled Codes; Student Paper Competition, 383-390, May 11–15, 2008
Paper No: ICONE16-48499
DOI: https://doi.org/10.1115/ICONE16-48499
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Topics: Fast neutron reactors, Safety, Scientific computing, Structural analysis, Structural mechanics, Sodium fast reactors, Accidents, Computers, Conceptual design, Education