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수중폭발 이론을 사용한 노심폭주사고 시 노심 팽창 및 에너지 거동 수치해석

NUMERICAL ANALYSIS ON THE REACTOR CORE EXPANSION AND ENERGY BEHAVIORS DURING CDA USING UNDERWATER EXPLOSION THEORY

  • 강석훈 (한국원자력연구원 SFR원자로설계부)
  • 투고 : 2016.05.13
  • 심사 : 2016.08.29
  • 발행 : 2016.09.30

초록

A numerical analysis is conducted to estimate the core expansion and the energy behaviors induced by a core disruptive accident in a sodium-cooled fast reactor. The numerical formulation based on underwater explosion theory is carried out to simulate the core explosion inside the reactor vessel. The transient pressure, temperature and expansion of the core are examined by solving the equation of state and nonlinear governing equation of momentum conservation in one-dimensional spherical coordinates. The energy balance inside the computation domain is examined during the core expansion process. Heat transfer between the core and the sodium coolant, and the bubble rise during the expansion process are briefly investigated.

키워드

참고문헌

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피인용 문헌

  1. 효과적인 VFX 수중 폭발효과 구현을 위한 유체 시뮬레이션 제어 vol.20, pp.9, 2016, https://doi.org/10.9717/kmms.2017.20.9.1606