http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Luguo Liu (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
Di Wang,Lili Tong,Luguo Liu,XUEWU CAO,Zhiqiang Zou,Lingjun Wu,Xiaowei Jiang 한국원자력학회 2019 Nuclear Engineering and Technology Vol.51 No.6
Hydrogen-steam gas mixture may be injected into containment with flow regime varying both spatiallyand transiently due to wall effect and pressure difference between primary loop and containment insevere accidents induced by loss of coolant accident. Preliminary CFD analysis is conducted to gain informationabout the helium flow regime transition process from jet to buoyancy plume for forthcomingexperimental study. Physical models of impinging jet and wall condensation are validated using separatedeffect experimental data, firstly. Then helium transportation is analyzed with the effect of jetmomentum, buoyancy and wall cooling discussed. Result shows that helium distribution is totallydominated by impinging jet in the beginning, high concentration appears near gas source and wallwhere jet momentum is strong. With the jet weakening, stable light gas layer without recirculating eddyis established by buoyancy. Transient reversed helium distribution appears due to natural convectionresulted from wall cooling, which delays the stratification. It is necessary to concern about hydrogenaccumulation in lower space under the containment external cooling strategy. From the perspective ofexperiment design, measurement point should be set at the height of connecting pipe and near the wallfor stratification stability criterion and impinging jet modelling validation.
ScienceON연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
