摘要
围绕超临界水冷堆中可能存在的流动不稳定性,采用系统分析程序APROS对不同情况下可能存在的密度波不稳定性进行分析。在APROS程序中分别对并联双通道、单通道和自然循环回路进行数值建模,采用动态求解得到各自的流动不稳定边界。结果表明,APROS程序能有效地预测超临界水流动不稳定边界,计算结果与已有的实验和数值分析结果吻合较好;在数值求解时需要优化时间步长,较大的时间步长会带来耗散效应。
Considering the possible flow instabilities in the supercritical Water-Cooled Reactor （SCWR）, APROS has been applied to three different cases of density wave oscillations. The two-parallel channels, single channel and natural circulation loop are all numerical modeled and stability boundaries are obtained by dynamic simulation. Results show that the software APROS is capable of predicting the supercritical stability boundaries, which agree with other experimental and numerical results. For numerical analysis the time step should be refined. A large time step would bring along dissipative effects.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2014年第5期70-73,88,共5页
Nuclear Power Engineering
