液体飞溅及冲击壁面问题的分析  

Analysis of liquid splash and its impact against a shell

作　　者：刘闯[1] 张雄[1] 陆明万[1] 

机构地区：[1]清华大学工程力学系,北京100084

出　　处：《清华大学学报（自然科学版）》2005年第5期662-665,共4页Journal of Tsinghua University(Science and Technology)

基　　金：国家"八六三"高技术项目(614-01-02)

摘　　要：剧烈运动的液体中飞溅出来的液团对壁面冲击会引发容器的安全性问题,为此该文对液体飞溅及冲击壁面问题的数值模拟方法进行了研究。综合各种运动界面数值模拟方法,建立了液团飞溅的临界条件。基于动能定理以及弹性力学的Boussinesq解和Flamant解分别导出了三维和二维轴对称情况下壁面冲击载荷计算公式。将该方法应用于液态金属快中子增殖堆的假想堆芯破损事故分析,结果与多个程序的计算结果较好吻合,说明该方法是可行的。Vessel security can be compromised when liquid splashing strongly impacts the vessel shell. The force of the liquid splash impacting the shell was modeled numerically for the critical liquid splash conditions predicted in many numerical simulations of interface movements. The impacting loads due to 3-D and axisymmetric 2-D bodies were derived using the Boussinesq and Flamant functions in elastic mechanics and the theorem of kinetic energy. The method was used to analyze a hypothetical core disruptive accident in a liquid-metal fast breeder reactor. The results are identical to previously published analytical results, which verifies the usefulness of the method.

关 键 词：冲击载荷 液体飞溅 快中子增殖反应堆 假想堆芯破损事故 

分 类 号：O347.1[理学—固体力学]