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Yoichi Utanohara
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Journal Articles

Dimensionless Profiles of Temperature and Steam Mass Fraction in Flows of Steam-Air Mixtures on a Flat Plate

Michio Murase, Tomonori Suzuki, Yoichi Utanohara, Toshiya Takaki
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. January 2023, 9(1): 011401.
Paper No: NERS-22-1006
https://doi.org/10.1115/1.4054842
Published Online: July 19, 2022
View Article titled, Dimensionless Profiles of Temperature and Steam Mass Fraction in Flows of Steam-Air Mixtures on a Flat Plate
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Topics: Flow (Dynamics), Steam, Temperature, Turbulence, Condensation, Flat plates, Boundary layer turbulence, Computational fluid dynamics, Computation
Journal Articles

Prediction Method for Condensation Heat Transfer in the Presence of Noncondensable Gas for Computational Fluid Dynamics Applications

Michio Murase, Yoichi Utanohara, Akio Tomiyama
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. July 2022, 8(3): 031404.
Paper No: NERS-21-1097
https://doi.org/10.1115/1.4053051
Published Online: May 26, 2022
View Article titled, Prediction Method for Condensation Heat Transfer in the Presence of Noncondensable Gas for Computational Fluid Dynamics Applications
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Topics: Condensation, Heat transfer, Steam, Temperature, Temperature distribution, Computational fluid dynamics, Mass transfer, Flat plates
Journal Articles

Prediction Method of Countercurrent Flow Limitation in a Pressurizer Surge Line and Its Evaluation for a 1/10-Scale Model

Michio Murase, Yoichi Utanohara, Takayoshi Kusunoki, Dirk Lucas, Akio Tomiyama
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research Papers
ASME J of Nuclear Rad Sci. July 2016, 2(3): 031021.
Paper No: NERS-15-1164
https://doi.org/10.1115/1.4033629
Published Online: June 17, 2016
View Article titled, Prediction Method of Countercurrent Flow Limitation in a Pressurizer Surge Line and Its Evaluation for a 1/10-Scale Model
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Topics: Computation, Flow (Dynamics), Pipes, Simulation, Surges, Uncertainty, Water, Computer simulation, Floods
Journal Articles

Effects of Decay Heat Distribution on Water Temperature in a Spent Fuel Pit and Prediction Errors With a One-Region Model

Chihiro Yanagi, Michio Murase, Yoichi Utanohara
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research Papers
ASME J of Nuclear Rad Sci. July 2016, 2(3): 031001.
Paper No: NERS-15-1113
https://doi.org/10.1115/1.4032507
Published Online: June 17, 2016
View Article titled, Effects of Decay Heat Distribution on Water Temperature in a Spent Fuel Pit and Prediction Errors With a One-Region Model
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Topics: Computation, Heat, Water, Water temperature, Temperature, Spent nuclear fuels
Journal Articles

Numerical Simulation of Temperature Distribution in a Containment Vessel of an Operating PWR Plant

Yoichi Utanohara, Michio Murase, Akihiro Masui, Ryo Inomata, Yuji Kamiya
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research Papers
ASME J of Nuclear Rad Sci. January 2015, 1(1): 011002.
Paper No: NERS-14-1004
https://doi.org/10.1115/1.4026389
Published Online: February 9, 2015
View Article titled, Numerical Simulation of Temperature Distribution in a Containment Vessel of an Operating PWR Plant
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Topics: Computer simulation, Flow (Dynamics), Pressurized water reactors, Temperature, Temperature distribution, Containment vessels, Heat, Simulation
Proceedings Papers

Thermal Fatigue Analysis at a Mixing Tee by a Fluid-Structural Simulation

Masayuki Kamaya, Yoichi Utanohara, Akira Nakamura
Proc. ASME. PVP2011, Volume 1: Codes and Standards, 383-391, July 17–21, 2011
Publisher: American Society of Mechanical Engineers
Paper No: PVP2011-57585
https://doi.org/10.1115/PVP2011-57585
View Paper titled, Thermal Fatigue Analysis at a Mixing Tee by a Fluid-Structural Simulation
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Topics: Fatigue analysis, Fluids, Simulation, Fatigue damage, Pipes, Thermal stresses, Stress, Water, Damage, Finite element methods
Proceedings Papers

Numerical Calculations for Air-Water Tests on CCFL in Different-Scale Models of a PWR Hot Leg

Michio Murase, Ikuo Kinoshita, Yoichi Utanohara, Dirk Lucas, Christophe Valle´e, Akio Tomiyama
Proc. ASME. ICONE18, 18th International Conference on Nuclear Engineering: Volume 4, Parts A and B, 123-131, May 17–21, 2010
Publisher: American Society of Mechanical Engineers
Paper No: ICONE18-29092
https://doi.org/10.1115/ICONE18-29092
View Paper titled, Numerical Calculations for Air-Water Tests on CCFL in Different-Scale Models of a PWR Hot Leg
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Topics: Pressurized water reactors, Water, Flow (Dynamics), Fluids, Steam
Proceedings Papers

Numerical Calculations on Countercurrent Air-Water Flow in Small-Scale Models of a PWR Hot Leg Using a VOF Model

Michio Murase, Yoichi Utanohara, Ikuo Kinoshita, Noritoshi Minami, Akio Tomiyama
Proc. ASME. ICONE17, Volume 3: Thermal Hydraulics; Current Advanced Reactors: Plant Design, Construction, Workforce and Public Acceptance, 141-148, July 12–16, 2009
Publisher: American Society of Mechanical Engineers
Paper No: ICONE17-75116
https://doi.org/10.1115/ICONE17-75116
View Paper titled, Numerical Calculations on Countercurrent Air-Water Flow in Small-Scale Models of a PWR Hot Leg Using a VOF Model
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Topics: Flow (Dynamics), Pressurized water reactors, Water, Pipes, Two-phase flow, Boilers, Cooling, Heat, Steam, Transient analysis