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Melting Simulation Using a Particle Method With Angular Momentum Conservation

[+] Author Affiliations
Masahiro Kondo, Shota Ueda, Koji Okamoto

University of Tokyo, Tokyo, Japan

Paper No. ICONE25-67588, pp. V004T06A033; 5 pages
doi:10.1115/ICONE25-67588
From:
  • 2017 25th International Conference on Nuclear Engineering
  • Volume 4: Nuclear Safety, Security, Non-Proliferation and Cyber Security; Risk Management
  • Shanghai, China, July 2–6, 2017
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-5782-3
  • Copyright © 2017 by ASME

abstract

To analyze the core degradation and relocation behavior of melts in a severe accident of nuclear power plant, the melting and solidification in the complexed geometry is to be calculated. For the calculation of such complexed behavior, a new particle method conserving angular momentum is proposed and applied for the melting simulation. When solid melts, it may move like a rigid body. The angular momentum conservation is important to capture such kind of motion. The potential of the new particle method was confirmed with a calculation of the melting in dam break geometry and cantilever geometry.

Copyright © 2017 by ASME

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