EVALUATION OF AIRBORNE RELEASE BEHAVIORS DURING CUTTING FUEL DEBRIS FOR FUTURE SAFETY ASSESSMENT OF FUEL DEBRIS RETRIEVAL - DEVELOPMENT OF A NUMERICAL SIMULATION METHOD FOR THE PREDICTION OF DISPERSAL BEHAVIOR FOR AEROSOLS WITH NON-SPHERICAL SHAPE -

Kenta Inagaki; Kenta Kato; Taizo Kanai; Koichi Uozumi; Kinya Nakamura; Tadafumi Koyama; Daisuke Yamauchi; Kazutaka Mogi; Fumio Totsuka; Yuichi Iwata

doi:10.1299/jsmefdr.2024.0_1074

2024

Session ID : 1074

DOI https://doi.org/10.1299/jsmefdr.2024.0_1074

Conference information

Host: The Japan Society of Mechanical Engineers

Name : Proceedings of FDR2024 International Topical Workshop on Fukushima Decommissioning Research

Date : October 10, 2024 - October 13, 2024

EVALUATION OF AIRBORNE RELEASE BEHAVIORS DURING CUTTING FUEL DEBRIS FOR FUTURE SAFETY ASSESSMENT OF FUEL DEBRIS RETRIEVAL

- DEVELOPMENT OF A NUMERICAL SIMULATION METHOD FOR THE PREDICTION OF DISPERSAL BEHAVIOR FOR AEROSOLS WITH NON-SPHERICAL SHAPE -

Kenta Inagaki, Kenta Kato, Taizo Kanai, Koichi Uozumi, Kinya Nakamura, Tadafumi Koyama, Daisuke Yamauchi, Kazutaka Mogi, Fumio Totsuka, Yuichi Iwata

Author information

Keywords: fuel debris retrieval, ARF, numerical simulation, CFD, particle method

CONFERENCE PROCEEDINGS RESTRICTED ACCESS

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Abstract

Multi-particle model was developed to enable the prediction of dispersion behavior of non-spherical dust. Developed method was used to calculate the terminal velocity of various cuboid shapes. Shape factor of each cuboid shape was estimated from the calculated terminal velocity and conversion between the aerodynamic diameter and actual particle size was enabled. Numerical simulation of ARF measurement test was performed and the result was compared with experimental data to validate the developed method.

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