Using the best estimate computer code RELAP5/SCDAPSIM/MOD3.2,the detailed calculation models of US Surry nuclear power plant(NPP) unit 2 were established and core melt accident induced by total loss of feed water(TLFW) was analyzed.

• 采用严重事故最佳估算程序RELAP5/SCDAPSIM/MOD3.；2；建立美国Surry-2核电站的详细计算模型；对完全丧失给水(TLFW)引发的堆芯熔化事故进行研究分析。