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Journal Articles

Dr. Romney B. Duffey on His 80th Birthday

Igor Pioro, Richard R. Schultz, Dr. Hideki Kamide, Dr. Sama Bilbao y Leon, Dr. Nils Diaz, Alexander V. Bychkov, Dr. Leon Cizelj, Francesco D'Auria, Dr. Yanping Huang, Dr. Yasuo Koizumi, Tomio Okawa, Dr. Robert Walker, Dr. Robert Youngblood, Enrico Zio

ASME J of Nuclear Rad Sci. July 2022, 8(3): 030201.

Paper No: NERS-22-1030

DOI: https://doi.org/10.1115/1.4054329

Published Online: May 3, 2022

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Topics: Accidents, Design, Electricity (Physics), Governments, Innovation, Japan Society of Mechanical Engineers, Nuclear engineering, Nuclear power, Risk, Safety

Proceedings Papers

Numerical Investigation of Safety System Parameters in Molten Salt Reactor: Wall Effect on Freeze Valve Opening Time

Muhammad Ilham, Indarta Kuncoro Aji, Tomio Okawa

Proc. ASME. ICONE28, Volume 1: Operating Plant Challenges, Successes, and Lessons Learned; Nuclear Plant Engineering; Advanced Reactors and Fusion; Small Modular and Micro-Reactors Technologies and Applications, V001T03A003, August 4–6, 2021

Paper No: ICONE28-64134

DOI: https://doi.org/10.1115/ICONE28-64134

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Topics: Melting, Molten salt reactors, Safety, Solidification, Valves

Proceedings Papers

Microscopic Heat Transfer Characteristics During Cooling of High Temperature Surface by a Falling Liquid Film

Yutaro Umehara, Tomio Okawa

Proc. ASME. ICONE28, Volume 2: Nuclear Fuels, Research, and Fuel Cycle; Nuclear Codes and Standards; Thermal-Hydraulics, V002T07A003, August 4–6, 2021

Paper No: ICONE28-61737

DOI: https://doi.org/10.1115/ICONE28-61737

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Topics: Boiling, Cooling, Heat transfer, High temperature, Liquid films

Proceedings Papers

Experimental Observation of Nucleate Boiling Entrainment in a Liquid Film

Junpei Tabuchi, Yuki Narushima, Kenichi Katono, Tomio Okawa

Proc. ASME. ICONE28, Volume 4: Student Paper Competition, V004T14A020, August 4–6, 2021

Paper No: ICONE28-63813

DOI: https://doi.org/10.1115/ICONE28-63813

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Topics: Liquid films, Nucleate boiling

Proceedings Papers

Prediction of Extremely High Minimum Heat Flux Point During Quenching in Nanofluid

Yutaro Umehara, Tomio Okawa

Proc. ASME. ICONE2020, Volume 3: Student Paper Competition; Thermal-Hydraulics; Verification and Validation, V003T12A001, August 4–5, 2020

Paper No: ICONE2020-16032

DOI: https://doi.org/10.1115/ICONE2020-16032

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Topics: Heat flux, Nanofluids, Quenching (Metalworking)

Journal Articles

Special Section: Selected Papers from ICONE-27

Jovica Riznic, Tomio Okawa, Asif Arastu, Leon Cizelj, Shripad Revankar, Richard Schultz

ASME J of Nuclear Rad Sci. October 2020, 6(4): 040301.

Paper No: NERS-20-1062

DOI: https://doi.org/10.1115/1.4047731

Published Online: September 4, 2020

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Topics: Japan Society of Mechanical Engineers, Mechanical engineers, Nuclear engineering, Radiation (Physics), Students, Nuclear power, Engineers, Governments, Industrial research, Maintenance

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

ASME J of Nuclear Rad Sci. April 2020, 6(2): 021105.

Paper No: NERS-19-1051

DOI: https://doi.org/10.1115/1.4045180

Published Online: January 29, 2020

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Topics: Cylinders, Molten salt reactors, Temperature, Valves, Brass (Metal), Thermal conductivity, Melting, Computer simulation, Copper, Fuels

Journal Articles

Greetings From JSME and the Report on ICONE27

Tomio Okawa

ASME J of Nuclear Rad Sci. January 2020, 6(1): 010302.

Paper No: NERS-19-1148

DOI: https://doi.org/10.1115/1.4045120

Published Online: November 29, 2019

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Topics: Japan Society of Mechanical Engineers, Nuclear engineering

Proceedings Papers

An Experimental Study on Freeze Valve Performance in a Molten Salt Reactor

Indarta Kuncoro Aji, Tokushima Tatsuya, Motoyasu Kinoshita, Tomio Okawa

Proc. ASME. ICONE26, Volume 9: Student Paper Competition, V009T16A044, July 22–26, 2018

Paper No: ICONE26-81679

DOI: https://doi.org/10.1115/ICONE26-81679

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Topics: Molten salt reactors, Valves, Fuels, Melting, Accidents, Metals, Drainage, Mathematics, Numerical analysis, Safety

Proceedings Papers

Modeling of Bubble Behavior in Low Void Fraction Subcooled Flow Boiling

Shintaro Sakamoto, Hiroki Ohori, Koji Enoki, Tomio Okawa

Proc. ASME. ICONE26, Volume 9: Student Paper Competition, V009T16A010, July 22–26, 2018

Paper No: ICONE26-81173

DOI: https://doi.org/10.1115/ICONE26-81173

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Topics: Boiling, Bubbles, Flow (Dynamics), Modeling, Porosity, Subcooling, Computer simulation, Condensation, Engineering simulation, Heat transfer

Proceedings Papers

Experiments on the Splashing Limit During Drop Impact Onto a Thin Liquid Film

Sota Kitabayashi, Koji Enoki, Tomio Okawa

Proc. ASME. ICONE25, Volume 9: Student Paper Competition, V009T15A032, July 2–6, 2017

Paper No: ICONE25-67021

DOI: https://doi.org/10.1115/ICONE25-67021

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Topics: Accidents, Cooling, Dimensionless numbers, Drops, Film thickness, Liquid films, Lubrication theory, Nuclear engineering, Silicones, Sprays

Proceedings Papers

Splash During Liquid Jet Impingement Onto a Horizontal Plate

Yi Zhan, Naoki Oya, Koji Enoki, Tomio Okawa, Shuji Ohno, Mitsuhiro Aoyagi, Takashi Takata

Proc. ASME. ICONE25, Volume 9: Student Paper Competition, V009T15A007, July 2–6, 2017

Paper No: ICONE25-66334

DOI: https://doi.org/10.1115/ICONE25-66334

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Topics: Combustion, Coolants, Drops, Fire, Flow (Dynamics), Jets, Leakage, Liquid films, Nozzles, Numerical analysis

Proceedings Papers

Experimental Study on Splashing During Liquid Jet Impingement Onto a Liquid Film

Zhan Yi, Naoki Oya, Koji Enoki, Tomio Okawa, Shuji Ohno, Mitsuhiro Aoyagi

Proc. ASME. ICONE24, Volume 5: Student Paper Competition, V005T15A001, June 26–30, 2016

Paper No: ICONE24-60033

DOI: https://doi.org/10.1115/ICONE24-60033

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Topics: Liquid films, Drops, Nozzles, Sodium, Accidents, Fire, Combustion, Jet engines, Jets, Leakage

Proceedings Papers

Accurate Estimation of Vaporization Rate in Subcooled Flow Boiling Based on the Results of Visualization Experiment

Kazuhiro Kaiho, Koji Enoki, Tomio Okawa

Proc. ASME. ICONE24, Volume 5: Student Paper Competition, V005T15A019, June 26–30, 2016

Paper No: ICONE24-60318

DOI: https://doi.org/10.1115/ICONE24-60318

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Topics: Boiling, Flow (Dynamics), Subcooling, Visualization, Bubbles, Nucleation (Physics), Gaussian distribution, Density, Experimental methods, Atmospheric pressure

Proceedings Papers

Numerical Simulation of Subcooled Flow Boiling Using a Bubble Tracking Method

Tomio Okawa, Naoki Miyano, Kazuhiro Kaiho, Koji Enoki

Proc. ASME. ICONE24, Volume 3: Thermal-Hydraulics, V003T09A004, June 26–30, 2016

Paper No: ICONE24-60088

DOI: https://doi.org/10.1115/ICONE24-60088

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Topics: Boiling, Bubbles, Computer simulation, Flow (Dynamics), Subcooling, Porosity, Nucleation (Physics), Simulation

Journal Articles

Enhancing Numerical Stability of a Two-Fluid Model by the Use of Interfacial Pressure Terms

Tomio Okawa

ASME J of Nuclear Rad Sci. April 2015, 1(2): 021001.

Paper No: NERS-14-1036

DOI: https://doi.org/10.1115/1.4029415

Published Online: March 24, 2015

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Topics: Boiling, Flow (Dynamics), Fluids, Numerical stability, Pressure, Subcooling, Two-phase flow, Simulation, Bubbles

Proceedings Papers

Effect of Interfacial Pressure Term on Numerical Stability of a Two-Fluid Model

Tomio Okawa, Yoshiro Kudo

Proc. ASME. ICONE22, Volume 2B: Thermal Hydraulics, V02BT09A008, July 7–11, 2014

Paper No: ICONE22-30580

DOI: https://doi.org/10.1115/ICONE22-30580

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Topics: Fluids, Numerical stability, Pressure, Two-phase flow, Boiling, Bubbles, Computer simulation, Flow (Dynamics), Fluid density, Subcooling

Proceedings Papers

A Study on High Heat Flux Heat Removal With Boiling Using Porous Microchannel

Daiki Hanzawa, Kyosuke Katsumata, Tomio Okawa

Proc. ASME. ICONE22, Volume 5: Innovative Nuclear Power Plant Design and New Technology Application; Student Paper Competition, V005T17A011, July 7–11, 2014

Paper No: ICONE22-30104

DOI: https://doi.org/10.1115/ICONE22-30104

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Topics: Boiling, Heat, Heat flux, Microchannels, Critical heat flux, Metals, Nickel, Pressure, Silver, Subcooling

Proceedings Papers

Boiling Heat Transfer and Critical Heat Flux Enhancement of Upward- and Downward-Facing Heater in Nanofluids

Muhamad Zuhairi Sulaiman, Masahiro Takamura, Kazuki Nakahashi, Tomio Okawa

Proc. ASME. ICONE20-POWER2012, Volume 5: Fusion Engineering; Student Paper Competition; Design Basis and Beyond Design Basis Events; Simple and Combined Cycles, 451-458, July 30–August 3, 2012

Paper No: ICONE20-POWER2012-54842

DOI: https://doi.org/10.1115/ICONE20-POWER2012-54842

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Topics: Boiling, Critical heat flux, Heat transfer, Nanofluids, Nucleate boiling, Pool boiling, Water, Copper, Nanoparticles, Titanium

Journal Articles

Boiling Heat Transfer and Critical Heat Flux Enhancement of Upward- and Downward-Facing Heater in Nanofluids

Muhamad Zuhairi Sulaiman, Masahiro Takamura, Kazuki Nakahashi, Tomio Okawa

J. Eng. Gas Turbines Power. July 2013, 135(7): 072901.

Paper No: GTP-12-1411

DOI: https://doi.org/10.1115/1.4023688

Published Online: June 12, 2013

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Topics: Boiling, Critical heat flux, Heat transfer, Nanofluids, Nucleate boiling

Journal citation

NARROW

Dr. Romney B. Duffey on His 80th Birthday

Numerical Investigation of Safety System Parameters in Molten Salt Reactor: Wall Effect on Freeze Valve Opening Time

Microscopic Heat Transfer Characteristics During Cooling of High Temperature Surface by a Falling Liquid Film

Experimental Observation of Nucleate Boiling Entrainment in a Liquid Film

Prediction of Extremely High Minimum Heat Flux Point During Quenching in Nanofluid

Special Section: Selected Papers from ICONE-27

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

Greetings From JSME and the Report on ICONE27

An Experimental Study on Freeze Valve Performance in a Molten Salt Reactor

Modeling of Bubble Behavior in Low Void Fraction Subcooled Flow Boiling

Experiments on the Splashing Limit During Drop Impact Onto a Thin Liquid Film

Splash During Liquid Jet Impingement Onto a Horizontal Plate

Experimental Study on Splashing During Liquid Jet Impingement Onto a Liquid Film

Accurate Estimation of Vaporization Rate in Subcooled Flow Boiling Based on the Results of Visualization Experiment

Numerical Simulation of Subcooled Flow Boiling Using a Bubble Tracking Method

Enhancing Numerical Stability of a Two-Fluid Model by the Use of Interfacial Pressure Terms

Effect of Interfacial Pressure Term on Numerical Stability of a Two-Fluid Model

A Study on High Heat Flux Heat Removal With Boiling Using Porous Microchannel

Boiling Heat Transfer and Critical Heat Flux Enhancement of Upward- and Downward-Facing Heater in Nanofluids

Boiling Heat Transfer and Critical Heat Flux Enhancement of Upward- and Downward-Facing Heater in Nanofluids

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