Oral presentation

[2J01-05] Gas-Liquid Two-Phase Flow 1

Tue. Mar 14, 2023 9:30 AM - 10:50 AM Room J (13 Bildg.2F 1321)

Chair:Riichiro Okawa(CRIEPI)

9:30 AM - 9:45 AM

[2J01] Effect of small-scale bubble swarm behavior on aerosol removal in pool scrubbing

*Sasuke Kadoma¹, Kiichi Kohno¹, Akiko Kaneko¹ (1. Univ. of Tsukuba)

9:45 AM - 10:00 AM

[2J02] Decontamination Behavior of Aerosols in a Single Bubble during Pool Scrubbing

*Kiichi Kohno¹, Sasuke Kadoma¹, Akiko Kaneko¹ (1. University of Tsukuba)

10:00 AM - 10:15 AM

[2J03] Effect of heat dissipation within wall on pool boiling critical heat flux

*Daichi Yanagita¹, Tomio Okawa¹, Yasuo Koizumi¹ (1. UEC)

10:15 AM - 10:30 AM

[2J04] Measurement of transient temperature distributions on heated rod bundle using optical fiber sensors at high pressure and temperature

*Takahiro Arai¹, Riichiro Okawa ¹, Atsushi Ui ¹, Masahiro Furuya¹, Tsugumasa Iiyama¹, Shota Ueda¹, Kenetsu Shirakawa¹ (1. CRIEPI)

10:30 AM - 10:45 AM

[2J05] Experimental study on breakup and splashing for liquid jet discharged from oval nozzle

*Guofu Sun¹, Yi Zhan¹, Tomio Okawa¹, Mitsuhiro Aoyagi², Akihiro Uchibori², Yasushi Okano² (1. The University of Electro-Communications, 2. Japan Atomic Energy Agency)

Time reserved for Chair （10:45 AM - 10:50 AM）

Oral presentation

[2J06-09] Gas-Liquid Two-Phase Flow 2

Tue. Mar 14, 2023 10:50 AM - 12:00 PM Room J (13 Bildg.2F 1321)

Chair:Hiroyuki Yoshida(JAEA)

10:50 AM - 11:05 AM

[2J06] Measurement of Boiling Entrainment Rate from a Liquid Film Flowing Downwards on a Vertical Heated Surface

*Raka Firman Baskara Permana¹, Tomio Okawa¹, Yuki Narushima², Hajime Furuichi², Kenichi Katono² (1. UEC, 2. Hitachi)

11:05 AM - 11:20 AM

[2J07] Development of a gas-liquid two-phase flow image analysis method using deep learning based object detection and recognition techniques

*Eguchi Kohei¹, Miwa Shuichiro², Sawa Kazuhiro¹ (1. Hokkaido Univ., 2. UTokyo)

11:20 AM - 11:35 AM

[2J08] Effects of Liquid Viscosity on Flow Characteristics in a Vertical Pipe under Flooding Conditions

*Toshiya Takaki¹, Michio Murase¹, Masaki Yamashita², Ryo Kurimoto², Kosuke Hayashi², Akio Tomiyama² (1. INSS, 2. Kobe Univ.)

11:35 AM - 11:50 AM

[2J09] Electrode structure to reduce crosstalk for concentration distribution measurement of high-electric conductivity solution

*Tsugumasa Iiyama¹, Takahiro Arai¹, Masahiro Furuya¹ (1. CRIEPI)

Time reserved for Chair （11:50 AM - 12:00 PM）

Oral presentation

[2J10-16] Numerical Analysis

Tue. Mar 14, 2023 2:45 PM - 4:40 PM Room J (13 Bildg.2F 1321)

Chair:Takahiro Arai(CRIEPI)

2:45 PM - 3:00 PM

[2J10] TRACE code analysis for thermal hydraulics behavior of NPP to contribute to best estimate of pressurized thermal shock

*Riichiro Okawa¹, Masahiro Furuya¹ (1. CRIEPI)

3:00 PM - 3:15 PM

[2J11] Investigation of Core Coolability during an Accident by Reactor Water Injection Using Severe Accident Analysis Code ASYST/SCDAPSIM

*Yoshihiro Morita¹, Masanori Naitoh¹ (1. AdvanceSoft)

3:15 PM - 3:30 PM

[2J12] Evaluation on Reactor Core Degradation and Relocation at Severe Accident

(3) MAAP5 analysis of LOFT LP-FP-2 and Phebus FPT0 Tests

*Koji Nishida¹, Naoki Sano¹, Seitaro Sakurai¹, Michio Murase¹ (1. INSS)

3:30 PM - 3:45 PM

[2J13] Analysis of breakup and agglomeration behavior of high-temperature melt by THERMOS-JBREAK

*Wataru Kikuchi¹, Akitoshi Hotta¹ (1. Nuclear Regulation Authority)

3:45 PM - 4:00 PM

[2J14] Numerical Analysis of Condensation Heat Transfer from Saturated Steam-Air Mixture in a Vertical Pipe

*Michio Murase¹, Yoichi Utanohara¹ (1. Institute of Nuclear Safety system, Inc.)

4:00 PM - 4:15 PM

[2J15] Development of Numerical Simulation Method to Evaluate Heat Transfer of Fuel Debris in Air Cooling

(4) Application of Effective Thermal Conductivity Models of Porous Medium

*Shinichiro Uesawa¹, Susumu Yamashita¹, Mitsuhiko Shibata¹, Hiroyuki Yoshida¹ (1. JAEA)

4:15 PM - 4:30 PM

[2J16] Development of Advanced Neutronics/Thermal-Hydraulics Coupling Simulation System

(8) Numerical simulations of two-phase flow including phase change using temperature recovering method

*Tomohiro Kamiya¹, Ayako Ono¹, Kenichi Tada¹, Susumu Yamashita¹, Yasunobu Nagaya¹, Hiroyuki Yoshida¹ (1. Japan Atomic Energy Agency)

Time reserved for Chair （4:30 PM - 4:40 PM）

Oral presentation

[2J17-19] Fast Reactor Thermal Hydraulics

Tue. Mar 14, 2023 4:40 PM - 5:30 PM Room J (13 Bildg.2F 1321)

Chair:Koji Morita(Kyushu Univ.)

4:40 PM - 4:55 PM

[2J17] Study on coolant behavior in damaged core of sodium-cooled fast reactor

(7) Evaluation of local two-phase flow behavior in a simulated debris bed

*Naoya Odaira¹, Seishiro Yamamoto¹, Daisuke Ito¹, Kei Ito¹, Yasushi Saito¹, Yuya Imaizumi², Ken-ichi Matsuba², Kenji Kamiyama² (1. Kyoto Univ., 2. JAEA)

4:55 PM - 5:10 PM

[2J18] Study on coolant behavior in damaged core of sodium-cooled fast reactor

(8) Examination of boiling experiments in a simulated debris bed

*Daisuke Ito¹, Naoya Odaira¹, Kei Ito¹, Yasushi Saito¹, Yuya Imaizumi², Kenichi Matsuba², Kenji Kamiyama² (1. Kyoto Univ., 2. JAEA)

5:10 PM - 5:25 PM

[2J19] PLANDTL-2 Experiment for Evaluation of Decay Heat Removal in Sodium-cooled Fast Reactors

Effect of Inter-subassembly Gap Flow under Interruption of Flow through Fuel Assemblies

*Toshiki Ezure¹, Yuta Akimot¹, Mitsuyo Tsuji¹, Akikazu Kurihara¹, Masaaki Tanaka¹ (1. JAEA)

Time reserved for Chair （5:25 PM - 5:30 PM）

Sessions

III. Fission Energy Engineering » 304-1 Thermal Hydraulics, Energy Conversion, Energy Transfer, Energy Storage

[2J01-05] Gas-Liquid Two-Phase Flow 1

[2J01] Effect of small-scale bubble swarm behavior on aerosol removal in pool scrubbing

[2J02] Decontamination Behavior of Aerosols in a Single Bubble during Pool Scrubbing

[2J03] Effect of heat dissipation within wall on pool boiling critical heat flux

[2J04] Measurement of transient temperature distributions on heated rod bundle using optical fiber sensors at high pressure and temperature

[2J05] Experimental study on breakup and splashing for liquid jet discharged from oval nozzle

[2J06-09] Gas-Liquid Two-Phase Flow 2

[2J06] Measurement of Boiling Entrainment Rate from a Liquid Film Flowing Downwards on a Vertical Heated Surface

[2J07] Development of a gas-liquid two-phase flow image analysis method using deep learning based object detection and recognition techniques

[2J08] Effects of Liquid Viscosity on Flow Characteristics in a Vertical Pipe under Flooding Conditions

[2J09] Electrode structure to reduce crosstalk for concentration distribution measurement of high-electric conductivity solution

[2J10-16] Numerical Analysis

[2J10] TRACE code analysis for thermal hydraulics behavior of NPP to contribute to best estimate of pressurized thermal shock

[2J11] Investigation of Core Coolability during an Accident by Reactor Water Injection Using Severe Accident Analysis Code ASYST/SCDAPSIM

[2J12] Evaluation on Reactor Core Degradation and Relocation at Severe Accident

(3) MAAP5 analysis of LOFT LP-FP-2 and Phebus FPT0 Tests

[2J13] Analysis of breakup and agglomeration behavior of high-temperature melt by THERMOS-JBREAK

[2J14] Numerical Analysis of Condensation Heat Transfer from Saturated Steam-Air Mixture in a Vertical Pipe

[2J15] Development of Numerical Simulation Method to Evaluate Heat Transfer of Fuel Debris in Air Cooling

(4) Application of Effective Thermal Conductivity Models of Porous Medium

[2J16] Development of Advanced Neutronics/Thermal-Hydraulics Coupling Simulation System

(8) Numerical simulations of two-phase flow including phase change using temperature recovering method

[2J17-19] Fast Reactor Thermal Hydraulics

[2J17] Study on coolant behavior in damaged core of sodium-cooled fast reactor

(7) Evaluation of local two-phase flow behavior in a simulated debris bed

[2J18] Study on coolant behavior in damaged core of sodium-cooled fast reactor

(8) Examination of boiling experiments in a simulated debris bed

[2J19] PLANDTL-2 Experiment for Evaluation of Decay Heat Removal in Sodium-cooled Fast Reactors

Effect of Inter-subassembly Gap Flow under Interruption of Flow through Fuel Assemblies

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