*IKKEN SATO¹, Akifumi Yamaji², Masahiro Furuya², Yuji Ohishi³, Xin Li¹, Hiroshi Madokoro¹, Hirofumi Fukai² (1. Japan Atomic Energy Agency, 2. Waseda Univ., 3. Osaka Univ.)

3:15 PM - 3:30 PM

[1G08] Fukushima Daiichi Unit-1 Accident Analysis using SAMPSON/JUPITER coupling simulation

(1)Basic Concept of Coupling Methodology

*Chiaki Kino¹, Susumu Yamashita², Hiroyuki Yoshida² (1. IAE, 2. JAEA)

3:30 PM - 3:45 PM

[1G09] Fukushima Daiichi Unit-1 Accident Analysis using SAMPSON/JUPITER coupling simulation

(2)Detailed fuel rod behavior simulation with chemical reactions using JUPITER

*Susumu Yamashita¹, Chiaki Kino², Hiroyuki Yoshida¹ (1. JAEA, 2. IAE)

3:45 PM - 4:00 PM

[1G10] GOTHIC analysis of pressure behavior after the ADS operation in Fukushima Daiichi Nuclear Power Plant unit 3

*Yuta Arai¹, Ikken Sato², Shinji Yoshikawa² (1. CSAJ, 2. JAEA)

Oral presentation

[1G11-14] Fast Reactor Thermal Hydraulics

Mon. Mar 16, 2020 4:00 PM - 5:00 PM Room G (Lecture Bildg. M 2F M-21)

Chair:Toshiki Ezure(JAEA)

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4:00 PM - 4:15 PM

[1G11] Study on droplet generation during upward spray flow collision onto a solid surface

*Yi Zhan¹, Guo fu Sun¹, Tomio Okawa¹, Koji Enoki¹, Mitsuhiro Aoyagi², Takashi Takata² (1. UEC, 2. JAEA)

4:15 PM - 4:30 PM

[1G12] Basic Research on Elucidation of Dynamics of Liquid Sodium Multiphase Flow

*Yosuke Ogino¹, Yuta Akimoto¹, Takeshi Fukuda¹ (1. Osaka Univ.)

4:30 PM - 4:45 PM

[1G13] Study on cooling process of decay heat removal systems in a reactor vessel of sodium-cooled fast reactor by scaled water experiments

(3)Temperature measurement in a reactor vessel simulating operation of reactor vessel auxiliary cooling system

*Kosuke Aizawa¹, Mitsuyo Tsuji¹, Jun Kobayashi¹, Akikazu Kurihara¹, Shigeru Nakane², Ishida Katsuji³ (1. JAEA, 2. NESI, 3. Ascend)

4:45 PM - 5:00 PM

[1G14] Solidification behavior of molten droplet falling through coolant

*Kota Kawasaki¹, Akiko Kaneko¹, Yutaka Abe¹, Kazuya Koyama² (1. University of Tsukuba, 2. Mitsubishi FBR Systems, Inc.)

Oral presentation

[2G01-07] Thermal Hydraulics Experiment/Analysis 1

Tue. Mar 17, 2020 10:00 AM - 11:55 AM Room G (Lecture Bildg. M 2F M-21)

Chair:Hiroyuki Yoshida(JAEA)

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10:00 AM - 10:15 AM

[2G01] Visualization of droplet flow dynamics downstream of BWR spacer with mixing vanes

*Riichiro Okawa¹, Masahiro Furuya¹, Takahiro Arai¹, Tsugumasa Iiyama¹ (1. CRIEPI)

10:15 AM - 10:30 AM

[2G02] Numerical simulation on two-phase flow in the 4x4 fuel bundle with the spacer by the mechanistically based method

*Ayako Ono¹, Susumu Yamashita¹, Takayuki Suzuki¹, Hiroyuki Yoshida¹ (1. JAEA)

10:30 AM - 10:45 AM

[2G03] Research and development for understanding two-phase flow behavior inside a fuel bundle

(7)Void distribution around part length rods with high-energy X-ray CT

*Takahiro Arai¹, Atsushi Ui ¹, Masahiro Furuya¹, Riichiro Okawa ¹, Tsugumasa Iiyama¹, Shota Ueda¹, Kenetsu Shirakawa¹, Kazuaki Kito² (1. CRIEPI, 2. HGNE)

10:45 AM - 11:00 AM

[2G04] Operating criteria and internal flow structure of Supersonic Steam Injector

*Eita Koyama¹, Yutaka Abe¹, Akiko Kaneko¹, Hiroyuki Yoshida² (1. University of Tsukuba, 2. Japan Atomic Energy Agency)

11:00 AM - 11:15 AM

[2G05] Effect of hydrogen inflow on natural circulation flow of passive core cooling system

*Yasunori YAMAMOTO¹, Masayoshi MORI¹, Tetsuya TAKADA¹, Kosuke ONO¹ (1. Hokkaido Univ.)

11:15 AM - 11:30 AM

[2G06] Condensation Heat Transfer for Downward Flows of Steam-Air Mixture in a Circular Pipe

*Michio Murase¹, Yoichi Utanohara¹, Akio Tomiyama² (1. INSS, 2. Kobe Univ.)

11:30 AM - 11:45 AM

[2G07] Numerical simulation of wall condensation heat transfer of steam and non-codensable gas mixture in a circular tube

*Yoichi Utanohara¹, Michio Murase¹ (1. INSS)

Time reserved for Chair （11:45 AM - 11:55 AM）

Oral presentation

[2G08-12] Thermal Hydraulics Experiment/Analysis 2

Tue. Mar 17, 2020 2:45 PM - 4:10 PM Room G (Lecture Bildg. M 2F M-21)

Chair:Yoichi Utanohara(INSS)

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2:45 PM - 3:00 PM

[2G08] Flow behavior and heat transfer characteristics near the rewetting front

*Yutaro Umehara¹, Keisuke Yamagata¹, Tomio Okawa¹, Koji Enoki¹ (1. UEC)

3:00 PM - 3:15 PM

[2G09] Flow Characteristics in Vertical Pipes under Flooding Conditions at the Top End

*TAKAKI Toshiya¹, GODA Raito², SHIMAMURA Takeyuki², MURASE Michio¹, TOMIYAMA Akio² (1. Institute of Nuclear Safety System, Incorporated , 2. Kobe University)

3:15 PM - 3:30 PM

[2G10] Heterogeneous nucleation and flashing phenomena in microwave heating.

*Shohei Kobayashi¹, Utaka Abe¹, Akiko Kaneko¹, Akihiro Futsuta¹, Kouta Fujiwara¹, Tomoomi Segawa², Koichi Kawaguchi², Katsunori Ishii² (1. Univ. of Tsukuba, 2. JAEA)

3:30 PM - 3:45 PM

[2G11] Water Flow Experiment to Understand Flow Behavior around ADS Beam Window

*Koki Asari¹, Hideaki Monji¹, Susumu Yamashita², Hiroyuki Yoshida², Takayuki Suzuki² (1. Univ. of Tsukuba, 2. JAEA)

3:45 PM - 4:00 PM

[2G12] Development of Multiphase Flow Feature Extraction Technique using Object Detection Algorithm

*Shuichiro Miwa¹, Shuhei Torisaki¹ (1. Hokkaido University)

Time reserved for Chair （4:00 PM - 4:10 PM）

Oral presentation

[2G13-17] Severe Accident

Tue. Mar 17, 2020 4:10 PM - 5:30 PM Room G (Lecture Bildg. M 2F M-21)

Chair:Akifumi Yamaji(Waseda Univ.)

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4:10 PM - 4:25 PM

[2G13] Penetration Behavior of Liquid Jet Falling into a Shallow Pool

(6)Visualization of Liquid Film and Fragmentation by using 3D-LIF Method and Influence of Inlet Jet Velocity

*Sota Yamamura¹, Hiroyuki Yoshida², Akiko Kaneko¹, Yutaka Abe¹ (1. Univ. of Tsukuba, 2. JAEA)

4:25 PM - 4:40 PM

[2G14] Penetration Behavior of Liquid Jet Falling into a Shallow Pool

(7)Evaluation of Fragmentation Diameter based on Numerical Simulation Results

*Hiroyuki Yoshida¹, Takayuki Suzuki¹, Horiguchi Naoki¹, Sota Yamamura², Yutaka Abe² (1. JAEA, 2. University of Tsukuba)

4:40 PM - 4:55 PM

[2G15] Fuel Damage of a Reactor Core in Severe Accident

(3)Analytical Evaluation of Material Relocation in SFD 1-4 Test

*Naoki Sano¹, Koji Nishida¹, Takayoshi Kusunoki¹, Michio Murase¹ (1. INSS)

4:55 PM - 5:10 PM

[2G16] Development of JBREAK-MSPREAD coupled analysis method

*Wataru Kikuchi¹, Akinobu Morita¹, Miyuki Akiba¹, Akitoshi Hotta¹ (1. Nuclear regulation authority division of research for severe accident)

5:10 PM - 5:25 PM

[2G17] Removal Performance of Organic Iodine by an Ionic Liquid

*Sohei Fukui¹, Kazushige Ishida¹, Kazuo Tominaga², Tomoharu Hashimoto², Ryuichi Tayama² (1. Hitachi, Ltd., 2. HGNE)

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

Oral presentation

[3G01-06] Critical Heat Flux

Wed. Mar 18, 2020 10:15 AM - 11:55 AM Room G (Lecture Bildg. M 2F M-21)

Chair:Koji Nishida(INSS)

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10:15 AM - 10:30 AM

[3G01] Development of Mechanistic Boiling Transition Model (part 1)

Derivation of mechanistic boiling transition correlation model

*Yasuhiro Masuhara¹, masashi sekine¹, junichi kaneko¹ (1. Nuclear Regulation Authority)

10:30 AM - 10:45 AM

[3G02] Development of Mechanistic Boiling Transition model (Part 2)

Verification of mechanistic boiling transition model

*Masashi Sekine¹, Yasuhiro Masuhara¹, Junichi Kaneko¹ (1. NRA)

10:45 AM - 11:00 AM

[3G03] CHF and Near-Wall Boiling Behaviors in Flow Boiling on a Vertical Surface

*Hiroto Sakashita¹ (1. Hokkaido University)

11:00 AM - 11:15 AM

[3G04] Preliminary research on a new model to predict CHF

*Kai Wang¹, Koji Okamoto¹, Nejdet Erkan¹ (1. Univ. of Tokyo)

11:15 AM - 11:30 AM

[3G05] Investigation of changes in nanoparticle layer properties near CHF

*Koki Nakano¹, Yutaro Umehara¹, Tomio Okawa¹, Yasuo Koizumi² (1. UEC, 2. JAEA)

11:30 AM - 11:45 AM

[3G06] Prediction of Bubble Departure Diameter for Downward Facing Heating Surface with Different Inclination Angle in IVR Condition

*Md Abdur Rafiq Akand¹, Tatsuya Matsumoto¹, Wei Liu¹, Koji Morita¹ (1. Department of Applied Quantum Physics & Nuclear Engineering, Kyushu University, Japan)

Time reserved for Chair （11:45 AM - 11:55 AM）

Sessions

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

[1G01-05] Scrubbing and Aerosol

(3)Bubble Behaviour Analysis using WMS

(8)Development of prediction model for deposition rate of aerosol particle in a Narrow Channel in a Reactor Building

[1G06-10] Fukushima Daiichi Accident

(1)Overview of the Project

(2)Points of discussion on debris conditions in Units 2 and 3

(1)Basic Concept of Coupling Methodology

(2)Detailed fuel rod behavior simulation with chemical reactions using JUPITER

[1G11-14] Fast Reactor Thermal Hydraulics

(3)Temperature measurement in a reactor vessel simulating operation of reactor vessel auxiliary cooling system

[2G01-07] Thermal Hydraulics Experiment/Analysis 1

(7)Void distribution around part length rods with high-energy X-ray CT

[2G08-12] Thermal Hydraulics Experiment/Analysis 2

[2G13-17] Severe Accident

(6)Visualization of Liquid Film and Fragmentation by using 3D-LIF Method and Influence of Inlet Jet Velocity

(7)Evaluation of Fragmentation Diameter based on Numerical Simulation Results

(3)Analytical Evaluation of Material Relocation in SFD 1-4 Test

[3G01-06] Critical Heat Flux

Derivation of mechanistic boiling transition correlation model

Verification of mechanistic boiling transition model

Authentication