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Yuta Uchiyama
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Proceedings Papers

Development of Prediction Tool for Flow-Accelerated Corrosion: (3) Development and Validation of Prediction Software “FALSET” With Water Single-Phase FAC Data Obtained in Japanese BWR Plants

Yuta Uchiyama, Ryo Morita, Kazutoshi Fujiwara, Kimitoshi Yoneda
Proc. ASME. PVP2023, Volume 6: Operations, Applications, & Components, V006T07A010, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-105848
https://doi.org/10.1115/PVP2023-105848
View Paper titled, Development of Prediction Tool for Flow-Accelerated Corrosion: (3) Development and Validation of Prediction Software “FALSET” With Water Single-Phase FAC Data Obtained in Japanese BWR Plants
Open the PDF for Development of Prediction Tool for Flow-Accelerated Corrosion: (3) Development and Validation of Prediction Software “FALSET” With Water Single-Phase FAC Data Obtained in Japanese BWR Plants in another window
Topics: Boiling water reactors, Computer software, Corrosion, Flow (Dynamics), Oxygen, Pipes, Water
Proceedings Papers

Development of Prediction Tool for Flow-Accelerated Corrosion (4) Development and Validation of Prediction Software “FALSET” With Water Single-Phase FAC Data Obtained in Japanese PWR Plants

Ryo Morita, Yuta Uchiyama, Kazutoshi Fujiwara, Kimitoshi Yoneda
Proc. ASME. PVP2023, Volume 6: Operations, Applications, & Components, V006T07A009, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-105766
https://doi.org/10.1115/PVP2023-105766
View Paper titled, Development of Prediction Tool for Flow-Accelerated Corrosion (4) Development and Validation of Prediction Software “FALSET” With Water Single-Phase FAC Data Obtained in Japanese PWR Plants
Open the PDF for Development of Prediction Tool for Flow-Accelerated Corrosion (4) Development and Validation of Prediction Software “FALSET” With Water Single-Phase FAC Data Obtained in Japanese PWR Plants in another window
Topics: Computer software, Corrosion, Flow (Dynamics), Pressurized water reactors, Water, Pipes, Power stations, Wall thickness, Maintenance, Public utilities
Proceedings Papers

Development of Prediction Tool for Flow-Accelerated Corrosion (1) Evaluation of Pipeline Layout Effect Considering Various Pipe Component Combinations

Kimitoshi Yoneda, Tomohisa Yuasa, Yuta Uchiyama, Ryo Morita
Proc. ASME. PVP2023, Volume 6: Operations, Applications, & Components, V006T07A007, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-105689
https://doi.org/10.1115/PVP2023-105689
View Paper titled, Development of Prediction Tool for Flow-Accelerated Corrosion (1) Evaluation of Pipeline Layout Effect Considering Various Pipe Component Combinations
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Topics: Corrosion, Flow (Dynamics), Pipelines, Pipes
Proceedings Papers

Simplified Elastic-Plastic Analysis Method for Piping Systems Based on Linear Time History Analysis

Yohei Ono, Michiya Sakai, Ryuya Shimazu, Fumio Inada, Ryo Morita, Yuta Uchiyama
Proc. ASME. PVP2022, Volume 5: Operations, Applications, and Components; Seismic Engineering; ASME Nondestructive Evaluation, Diagnosis and Prognosis (NDPD) Division, V005T08A001, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-81651
https://doi.org/10.1115/PVP2022-81651
View Paper titled, Simplified Elastic-Plastic Analysis Method for Piping Systems Based on Linear Time History Analysis
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Topics: Density, Earthquakes, Piping systems
Journal Articles

Combined Effects of Steam Wetness and Pressure on Characteristics of Acoustic Resonance Amplitude in Closed Side Branch

Yuta Uchiyama, Ryo Morita
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. February 2021, 143(1): 011402.
Paper No: PVT-19-1179
https://doi.org/10.1115/1.4047648
Published Online: August 5, 2020
View Article titled, Combined Effects of Steam Wetness and Pressure on Characteristics of Acoustic Resonance Amplitude in Closed Side Branch
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Topics: Flow (Dynamics), Pressure, Steam, Resonance, Acoustics
Proceedings Papers

Investigation of Fluid Diffusion Properties From Various Flaw Geometries of Piping

Shun Watanabe, Ryo Morita, Yuta Uchiyama
Proc. ASME. PVP2018, Volume 4: Fluid-Structure Interaction, V004T04A021, July 15–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: PVP2018-84212
https://doi.org/10.1115/PVP2018-84212
View Paper titled, Investigation of Fluid Diffusion Properties From Various Flaw Geometries of Piping
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Topics: Diffusion (Physics), Fluids, Pipes, Flow (Dynamics), Leakage, Maintenance, Regulations, Safety, Failure, Fracture (Materials)
Proceedings Papers

Expansion of Multi-Purpose Steam Facility and Application to Acoustic Resonance in a Closed Side Branch Investigating Effects of Static Pressure Under Wet Steam Flow

Yuta Uchiyama, Ryo Morita
Proc. ASME. PVP2017, Volume 4: Fluid-Structure Interaction, V004T04A028, July 16–20, 2017
Publisher: American Society of Mechanical Engineers
Paper No: PVP2017-65189
https://doi.org/10.1115/PVP2017-65189
View Paper titled, Expansion of Multi-Purpose Steam Facility and Application to Acoustic Resonance in a Closed Side Branch Investigating Effects of Static Pressure Under Wet Steam Flow
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Topics: Acoustics, Flow (Dynamics), Pressure, Resonance, Steam, Pipes, Test facilities, Damping, Power stations, Engineering systems and industry applications
Proceedings Papers

Considerations in Steam Piping Design for Prevention of an Acoustic Resonance at a Closed Side Branch

Ryo Morita, Yuta Uchiyama, Fumio Inada, Shiro Takahashi
Proc. ASME. PVP2017, Volume 4: Fluid-Structure Interaction, V004T04A031, July 16–20, 2017
Publisher: American Society of Mechanical Engineers
Paper No: PVP2017-65244
https://doi.org/10.1115/PVP2017-65244
View Paper titled, Considerations in Steam Piping Design for Prevention of an Acoustic Resonance at a Closed Side Branch
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Topics: Acoustics, Piping design, Resonance, Steam, Flow (Dynamics), Boiling water reactors, Pipes, Drops, Liquid films, Computational fluid dynamics
Journal Articles

Flow-Induced Acoustic Resonance in a Closed Side Branch Under a Low-Pressure Wet Steam Flow

Yuta Uchiyama, Ryo Morita
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. June 2017, 139(3): 031306.
Paper No: PVT-16-1132
https://doi.org/10.1115/1.4035271
Published Online: January 11, 2017
View Article titled, Flow-Induced Acoustic Resonance in a Closed Side Branch Under a Low-Pressure Wet Steam Flow
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Topics: Flow (Dynamics), Pressure, Resonance, Steam, Pipes
Proceedings Papers

Evaluation of Jet Impact Region and Fluid Force Generated From Ruptured Pipes: 3 — Evaluation of Established Standards

Qiang Xu, Shiro Takahashi, Noriyuki Takamura, Ryo Morita, Yuta Uchiyama, Shun Watanabe
Proc. ASME. ICONE24, Volume 3: Thermal-Hydraulics, V003T09A016, June 26–30, 2016
Publisher: American Society of Mechanical Engineers
Paper No: ICONE24-60317
https://doi.org/10.1115/ICONE24-60317
View Paper titled, Evaluation of Jet Impact Region and Fluid Force Generated From Ruptured Pipes: 3 — Evaluation of Established Standards
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Topics: Fluids, Pipes, Computational fluid dynamics, Steam, Damage, Design, Engineering standards, Evaluation methods, Nuclear power stations, Particulate matter
Proceedings Papers

Evaluation of Jet Impact Region and Fluid Force Generated From Ruptured Pipes: 1 — Numerical and Experimental Evaluation of Affected Region by Steam Jet

Ryo Morita, Yuta Uchiyama, Shun Watanabe, Shiro Takahashi, Qiang Xu, Noriyuki Takamura
Proc. ASME. ICONE24, Volume 3: Thermal-Hydraulics, V003T09A019, June 26–30, 2016
Publisher: American Society of Mechanical Engineers
Paper No: ICONE24-60341
https://doi.org/10.1115/ICONE24-60341
View Paper titled, Evaluation of Jet Impact Region and Fluid Force Generated From Ruptured Pipes: 1 — Numerical and Experimental Evaluation of Affected Region by Steam Jet
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Topics: Fluids, Pipes, Steam, Computational fluid dynamics, Safety, Damage, Design, Evaluation methods, Nuclear power stations, Particulate matter
Proceedings Papers

Evaluation of Jet Impact Region and Fluid Force Generated From Ruptured Pipes: 2 — Evaluation of Fluid Force Using Computational Fluid Dynamics Analysis

Shiro Takahashi, Qiang Xu, Noriyuki Takamura, Ryo Morita, Yuta Uchiyama, Shun Watanabe
Proc. ASME. ICONE24, Volume 3: Thermal-Hydraulics, V003T09A015, June 26–30, 2016
Publisher: American Society of Mechanical Engineers
Paper No: ICONE24-60316
https://doi.org/10.1115/ICONE24-60316
View Paper titled, Evaluation of Jet Impact Region and Fluid Force Generated From Ruptured Pipes: 2 — Evaluation of Fluid Force Using Computational Fluid Dynamics Analysis
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Topics: Computational fluid dynamics, Fluids, Pipes, Steam, Jets, Damage, Design, Evaluation methods, Nozzles, Nuclear power stations
Proceedings Papers

Experimental Investigation for Acoustic Resonance in Tandem Branches Under Each Dry and Wet Steam Flow

Yuta Uchiyama, Ryo Morita
Proc. ASME. PVP2015, Volume 4: Fluid-Structure Interaction, V004T04A035, July 19–23, 2015
Publisher: American Society of Mechanical Engineers
Paper No: PVP2015-45456
https://doi.org/10.1115/PVP2015-45456
View Paper titled, Experimental Investigation for Acoustic Resonance in Tandem Branches Under Each Dry and Wet Steam Flow
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Topics: Acoustics, Flow (Dynamics), Resonance, Steam, Power stations, Pipes, Piping systems, Air flow, Boiling water reactors, High cycle fatigue
Proceedings Papers

Experimental Evaluation of Resonance Frequency at Branch Section in Each Dry and Wet Steam Flow

Yuta Uchiyama, Ryo Morita
Proc. ASME. PVP2013, Volume 4: Fluid-Structure Interaction, V004T04A053, July 14–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: PVP2013-97820
https://doi.org/10.1115/PVP2013-97820
View Paper titled, Experimental Evaluation of Resonance Frequency at Branch Section in Each Dry and Wet Steam Flow
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Topics: Flow (Dynamics), Resonance, Steam, Acoustics, Piping systems, Power stations, Air flow, High cycle fatigue, Nuclear power stations, Power uprate
Proceedings Papers

Development of a Wall Thinning Rate Model for Liquid Droplet Impingement Erosion

Ryo Morita, Yuta Uchiyama
Proc. ASME. PVP2012, Volume 6: Materials and Fabrication, Parts A and B, 1017-1023, July 15–19, 2012
Publisher: American Society of Mechanical Engineers
Paper No: PVP2012-78443
https://doi.org/10.1115/PVP2012-78443
View Paper titled, Development of a Wall Thinning Rate Model for Liquid Droplet Impingement Erosion
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Topics: Drops, Erosion, Steam, Flow (Dynamics), Power stations, Fluids, Liquid films, Pipes, Piping systems, Surfaces (Materials)
Proceedings Papers

Wet Steam Flowrate Calibration Facility

Masahiro Ishibashi, Tatsuya Funaki, Masaki Takamoto, Shuichi Umezawa, Masayuki Sakai, Haruo Amari, Hiroyuki Shimada, Ryo Morita, Fumio Inada, Yuta Uchiyama
Proc. ASME. AJK2011, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 2, Fora, 155-160, July 24–29, 2011
Publisher: American Society of Mechanical Engineers
Paper No: AJK2011-31026
https://doi.org/10.1115/AJK2011-31026
View Paper titled, Wet Steam Flowrate Calibration Facility
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Topics: Calibration, Steam, Flow (Dynamics), Heat exchangers, Boilers, Cooling, Enthalpy, Flowmeters, Uncertainty analysis
Proceedings Papers

Clarification of Measurement Error of Orifice Flow Meter in Wet Steam Flow

Ryo Morita, Shuichi Umezawa, Tatsuya Funaki, Fumio Inada, Masayuki Sakai, Masahiro Ishibashi, Yuta Uchiyama, Haruo Amari, Masaki Takamoto, Hiroyuki Shimada
Proc. ASME. POWER2011, ASME 2011 Power Conference, Volume 2, 307-313, July 12–14, 2011
Publisher: American Society of Mechanical Engineers
Paper No: POWER2011-55457
https://doi.org/10.1115/POWER2011-55457
View Paper titled, Clarification of Measurement Error of Orifice Flow Meter in Wet Steam Flow
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Topics: Errors, Flow (Dynamics), Flowmeters, Steam, Pressure
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
Publisher: American Society of Mechanical Engineers
Paper No: ICONE18-29618
https://doi.org/10.1115/ICONE18-29618
View Paper titled, Experimental Study on Jet Breakup Behavior With Surface Solidification
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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
Publisher: American Society of Mechanical Engineers
Paper No: ICONE17-75307
https://doi.org/10.1115/ICONE17-75307
View Paper titled, Experimental Study on Influence of Interfacial Behavior on Jet Surface Fragmentation
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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
Publisher: American Society of Mechanical Engineers
Paper No: ICONE16-48359
https://doi.org/10.1115/ICONE16-48359
View Paper titled, Visual Observation of Fragmentation Behavior on Molten Material Jet Surface in Coolant
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Topics: Coolants, Water, Internal flow, Waves, Accidents, Flow (Dynamics), Sodium, Breeder reactors, Design, Fluids