【摘要】 根据核电站安全分析及实时仿真的需要，针对核电站一回路在事故状态下的两相流问题，进行了仿真建模及其算法的研究。在以漂移流理论为依据建立的理论模型的基础上提出了一种既能比较准确反映流体网络的动态过程，又能实现快速运算、达到实时仿真要求的两相流流体网络模型的建模方法和求解技术。所建模型具有精度高、实时性好的优点。并可适用于各种拓扑结构的两相流流体网络的实时仿真计算。更多还原

【Abstract】 To meet the need of real time simulation for two phase flow network in power plants, this paper presents a mathematical model based on basic principles and a numerical solution method. This model can be used to describe nonhomogeneous two phase flow networks. The algorithm presented in this paper makes use of the sparsity, the symmetry and the diagonal dominancy of the coefficient matrix to save storage space, reduce computational time and meet the requirements of real time simulations.更多还原