메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색

논문 기본 정보

자료유형
학술저널
저자정보
최해윤 (서울대학교) 채훈 (서울대학교) 김응수 (서울대학교)
저널정보
한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제10호
발행연도
2021.10
수록면
3,264 - 3,274 (11page)
DOI
https://doi.org/10.1016/j.net.2021.04.021

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색

초록· 키워드

오류제보하기
In a severe accident of light water reactor (LWR), molten core material (corium) can be released into thewet cavity, and a fuel-coolant interaction (FCI) can occur. The molten jet with high speed is broken andfragmented into small debris, which may cause a steam explosion or a molten core concrete interaction(MCCI). Since the premixing stage where the jet breakup occurs has a large impact on the severe accidentprogression, the understanding and evaluation of the jet breakup phenomenon are highly important. Therefore, in this study, the jet breakup simulations were performed using the Smoothed Particle Hydrodynamics (SPH) method which is a particle-based Lagrangian numerical method. For the multi-fluidsystem, the normalized density approach and improved surface tension model (CSF) were applied to thein-house SPH code (single GPU-based SOPHIA code) to improve the calculation accuracy at the interfaceof fluids. The jet breakup simulations were conducted in two cases: (1) jet breakup without structures,and (2) jet breakup with structures (control rod guide tubes). The penetration depth of the jet and jetbreakup length were compared with those of the reference experiments, and these SPH simulation results are qualitatively and quantitatively consistent with the experiments.

목차

등록된 정보가 없습니다.

참고문헌 (36)

참고문헌 신청

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

이 논문의 저자 정보

최근 본 자료

전체보기

댓글(0)

0