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Journal Articles

Estimation of Turbulent Mixing Factor and Study of Turbulent Flow Structures in Pressurized Water Reactor Sub Channel by Direct Numerical Simulation

R. K. Singh, Deb Mukhopadhyay, D. Khakhar, J. B. Joshi
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. April 2025, 11(2): 021001.
Paper No: NERS-24-1004
https://doi.org/10.1115/1.4066001
Published Online: October 8, 2024
View Article titled, Estimation of Turbulent Mixing Factor and Study of Turbulent Flow Structures in Pressurized Water Reactor Sub Channel by Direct Numerical Simulation
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Topics: Computer simulation, Flow (Dynamics), Turbulence, Momentum, Pressurized water reactors
Journal Articles

A Simple Analytical Model to Predict the Freeze Plug Opening Time in Molten Salt Reactors

Muhammad Ilham, Tomio Okawa
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Technical Briefs
ASME J of Nuclear Rad Sci. October 2023, 9(4): 041107.
Paper No: NERS-22-1162
https://doi.org/10.1115/1.4062879
Published Online: July 17, 2023
View Article titled, A Simple Analytical Model to Predict the Freeze Plug Opening Time in Molten Salt Reactors
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Topics: Molten salt reactors, Simulation, Wall thickness, Safety, Computer simulation, Design, Temperature, Heat conduction, Melting, Solidification
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
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Design Innovation Paper
ASME J of Nuclear Rad Sci. April 2023, 9(2): 025001.
Paper No: NERS-21-1157
https://doi.org/10.1115/1.4054726
Published Online: June 15, 2022
View Article titled, ARKADIA—For the Innovation of Advanced Nuclear Reactor Design
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Topics: Design, Optimization, Safety, Thermal hydraulics, Nuclear design, Nuclear reactors, Computer simulation
Journal Articles

Assessment of Spray and Pool Scrubbing Efficiencies for Means of Mitigation Against Aerosol Dispersion in the Context of Fuel Debris Retrieval at Fukushima Daiichi: Part II

Emmanuel Porcheron, Yohan Leblois, Thomas Gelain, Christophe Chagnot, Christophe Journeau, Damien Roulet
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. July 2022, 8(3): 031702.
Paper No: NERS-21-1064
https://doi.org/10.1115/1.4051538
Published Online: May 26, 2022
View Article titled, Assessment of Spray and Pool Scrubbing Efficiencies for Means of Mitigation Against Aerosol Dispersion in the Context of Fuel Debris Retrieval at Fukushima Daiichi: Part II
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Topics: Aerosols, Particulate matter, Sprays, Laser cutting, Drops, Fuels, Water, Computer simulation, Fukushima nuclear disaster, Japan, 2011
Journal Articles

Numerical Verifications on Heat Transfer to Supercritical Water Flowing Upward in a 4-m Long Bare Vertical Tube

Dong Yang, Jiaxiang Chen, Yongchang Feng, Lin Chen
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. April 2022, 8(2): 021402.
Paper No: NERS-20-1194
https://doi.org/10.1115/1.4051248
Published Online: October 19, 2021
View Article titled, Numerical Verifications on Heat Transfer to Supercritical Water Flowing Upward in a 4-m Long Bare Vertical Tube
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Topics: Heat transfer, Turbulence, Water, Temperature, Computer simulation, Heat flux, Heat, Density, Flow (Dynamics), Viscosity
Journal Articles

Eddy Current Flow Meter Performance in Liquid Metal Flows Inclined to the Sensor Axis

Nico Krauter, Vladimir Galindo, Thomas Wondrak, Sven Eckert, Gunter Gerbeth
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. January 2022, 8(1): 011303.
Paper No: NERS-20-1060
https://doi.org/10.1115/1.4050420
Published Online: August 3, 2021
View Article titled, Eddy Current Flow Meter Performance in Liquid Metal Flows Inclined to the Sensor Axis
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Topics: Eddies (Fluid dynamics), Flow (Dynamics), Flowmeters, Liquid metals, Sensors, Computer simulation
Journal Articles

Numerical Modeling and Experimental Validation of a Supercritical CO 2 -Lubricated Hydrodynamic Journal Bearing

Nathan Colgan, Ken Cragin, Jeffrey Breedlove, Gregory Nellis, Mark Anderson
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. July 2021, 7(3): 031802.
Paper No: NERS-20-1119
https://doi.org/10.1115/1.4049724
Published Online: May 26, 2021
View Article titled, Numerical Modeling and Experimental Validation of a Supercritical CO 2 -Lubricated Hydrodynamic Journal Bearing
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Topics: Bearings, Pressure, Temperature, Computer simulation, Fluids
Journal Articles

Experimental and Numerical Investigation of Solidification of Gallium in an Initially Emptied Horizontal Pipe Flow

Shawn Somers-Neal, Alex Pegarkov, Edgar Matida, Vinh Tang, Tarik Kaya
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. July 2021, 7(3): 031602.
Paper No: NERS-20-1052
https://doi.org/10.1115/1.4049096
Published Online: March 16, 2021
View Article titled, Experimental and Numerical Investigation of Solidification of Gallium in an Initially Emptied Horizontal Pipe Flow
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Topics: Gallium, Metals, Pipes, Solidification, Temperature, Computer simulation, Reynolds number, Flow (Dynamics), Wall temperature
Journal Articles

Numerical Analysis of Heat Transfer on the Shell Side of a Helically Coiled Tube Heat Exchanger for Helium Applications

Radomír Filip, Tomáš Melichar
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. April 2021, 7(2): 021403.
Paper No: NERS-20-1187
https://doi.org/10.1115/1.4050205
Published Online: March 8, 2021
View Article titled, Numerical Analysis of Heat Transfer on the Shell Side of a Helically Coiled Tube Heat Exchanger for Helium Applications
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Topics: Computational fluid dynamics, Flow (Dynamics), Heat exchangers, Heat transfer, Heat transfer coefficients, Helium, Shells, Temperature, Pressure, Water
Journal Articles

Manipulation System for Measuring Heat Flux in Radioactive Melt

Michal Knedlík, David Rot, Jan Hrbek
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. April 2021, 7(2): 021801.
Paper No: NERS-20-1140
https://doi.org/10.1115/1.4048632
Published Online: October 30, 2020
View Article titled, Manipulation System for Measuring Heat Flux in Radioactive Melt
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Topics: Control algorithms, Electromagnetic induction, Heat flux, Manipulators, Melting, Safety, Temperature, Testing, User interfaces, Computer software
Journal Articles

Heat Transfer and Hydraulic Resistance in Turbulent Flow in Vertical Round Tubes at Supercritical Pressures—Part 1: Results From Numerical Simulations Using Algebraic Turbulent Viscosity Models

Georgy G. Yankov, Vladimir A. Kurganov, Yury A. Zeigarnik, Irina V. Maslakova
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. July 2021, 7(3): 031401.
Paper No: NERS-19-1129
https://doi.org/10.1115/1.4047042
Published Online: October 30, 2020
View Article titled, Heat Transfer and Hydraulic Resistance in Turbulent Flow in Vertical Round Tubes at Supercritical Pressures—Part 1: Results From Numerical Simulations Using Algebraic Turbulent Viscosity Models
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Topics: Flow (Dynamics), Heat transfer, Turbulence, Viscosity, Buoyancy, Algebra, Computer simulation, Pressure, Carbon dioxide
Journal Articles

Flow Instability Investigation at Supercritical Pressures in Parallel Channels by Computational Fluid Dynamics Adopting Low- and High-Power Boundaries

Edward Shitsi, Seth Kofi Debrah, Vincent Yao Agbodemegbe, Emmanuel Ampomah-Amoako
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. January 2021, 7(1): 011401.
Paper No: NERS-19-1142
https://doi.org/10.1115/1.4046255
Published Online: October 1, 2020
View Article titled, Flow Instability Investigation at Supercritical Pressures in Parallel Channels by Computational Fluid Dynamics Adopting Low- and High-Power Boundaries
Open the PDF for Flow Instability Investigation at Supercritical Pressures in Parallel Channels by Computational Fluid Dynamics Adopting Low- and High-Power Boundaries in another window
Topics: Computational fluid dynamics, Flow (Dynamics), Flow instability, Gravity (Force), Oscillations, Pressure, Temperature, Heating, Turbulence, Coolants
Journal Articles

Numerical Simulation of a Steam Injector for Passive Residual Heat Removal

Thomas Schulenberg, David Heinze
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. July 2020, 6(3): 031105.
Paper No: NERS-19-1058
https://doi.org/10.1115/1.4045692
Published Online: June 5, 2020
View Article titled, Numerical Simulation of a Steam Injector for Passive Residual Heat Removal
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Topics: Ejectors, Flow (Dynamics), Nozzles, Pressure, Shock (Mechanics), Steam, Condensation, Computer simulation, Water, Two-phase flow
Journal Articles

Numerical Simulation of Siphon Breaker Systems for Open-Type Research Reactors

Damian E. Ramajo, Santiago F. Corzo, Norberto M. Nigro
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. April 2020, 6(2): 021202.
Paper No: NERS-19-1039
https://doi.org/10.1115/1.4045121
Published Online: February 24, 2020
View Article titled, Numerical Simulation of Siphon Breaker Systems for Open-Type Research Reactors
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Topics: Flow (Dynamics), Fluids, Pipes, Pressure, Simulation, Water, Computational fluid dynamics, Geometry, Drainage, Computer simulation
Journal Articles

An Experimental and Numerical Study of Wall Effect on Freeze Valve Performance in a Molten Salt Reactor

Indarta Kuncoro Aji, Tokushima Tatsuya, Motoyasu Kinoshita, Tomio Okawa
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. April 2020, 6(2): 021105.
Paper No: NERS-19-1051
https://doi.org/10.1115/1.4045180
Published Online: January 29, 2020
View Article titled, An Experimental and Numerical Study of Wall Effect on Freeze Valve Performance in a Molten Salt Reactor
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Topics: Cylinders, Molten salt reactors, Temperature, Valves, Brass (Metal), Thermal conductivity, Melting, Computer simulation, Copper, Fuels
Journal Articles

Gas Turbine Arekret-Cycle Simulation Modeling for Training and Educational Purposes

Emmanuel O. Osigwe, Pericles Pilidis, Theoklis Nikolaidis, Suresh Sampath
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. October 2019, 5(4): 041207.
Paper No: NERS-19-1002
https://doi.org/10.1115/1.4043681
Published Online: August 2, 2019
View Article titled, Gas Turbine Arekret-Cycle Simulation Modeling for Training and Educational Purposes
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Topics: Closed-cycle gas turbines, Compressors, Computer simulation, Cycles, Design, Engines, Flow (Dynamics), Fluids, Gas turbines, Pressure
Journal Articles

Research on a Transonic Supercritical Carbon Dioxide Centrifugal Turbine

Zehai Yang, Dan Luo, Diangui Huang
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. October 2019, 5(4): 041202.
Paper No: NERS-18-1072
https://doi.org/10.1115/1.4043295
Published Online: July 19, 2019
View Article titled, Research on a Transonic Supercritical Carbon Dioxide Centrifugal Turbine
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Topics: Blades, Computer simulation, Design, Flow (Dynamics), Pressure, Rotors, Turbines, Nozzles, Supercritical carbon dioxide
Journal Articles

Preliminary Experiments While Designing a Cold Crucible for Metal Melting

David Rot, Jakub Jiřinec
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. July 2019, 5(3): 030911.
Paper No: NERS-18-1121
https://doi.org/10.1115/1.4043199
Published Online: April 16, 2019
View Article titled, Preliminary Experiments While Designing a Cold Crucible for Metal Melting
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Topics: Alloys, Computer simulation, Design, Electromagnetic induction, Inductors, Melting, Metals, Stress, Magnetohydrodynamics, Generators
Journal Articles

Experimental and Numerical Analysis of Mixing Process of Two Component Gases in a Vertical Fluid Layer in a VHTR

Tetsuaki Takeda
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. April 2019, 5(2): 021003.
Paper No: NERS-17-1288
https://doi.org/10.1115/1.4041690
Published Online: March 15, 2019
View Article titled, Experimental and Numerical Analysis of Mixing Process of Two Component Gases in a Vertical Fluid Layer in a VHTR
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Topics: Gases, High temperature, Natural convection, Numerical analysis, Temperature, Diffusion (Physics), Flow (Dynamics), Very high temperature reactors, Low temperature, Fluids
Journal Articles

A Numerical Analysis Method of Impurity Precipitation on Mesh Wire of Cold Trap in Fast Breeder Reactor

Akinori Tamura, Shiro Takahashi, Hiroyuki Nakata, Akio Takota
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. July 2018, 4(3): 031015.
Paper No: NERS-17-1262
https://doi.org/10.1115/1.4039037
Published Online: May 16, 2018
View Article titled, A Numerical Analysis Method of Impurity Precipitation on Mesh Wire of Cold Trap in Fast Breeder Reactor
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Topics: Flow (Dynamics), Numerical analysis, Precipitation, Reynolds number, Simulation, Wire, Breeder reactors, Computer simulation, Pressure, Sodium