基于动力学原理的cosFlow软件主泵模块研发及验证

摘要

The object of COSINE(COre and System INtegrated Engine for design and analysis)project is to develop a software platform for nuclear power plant design and safety analysis. cosFlow code is a part of COSINE code,and the pump is important in safety analysis. A pump model based on deceleration equation is established and pump head can be got from pump characteristic curves. Two test cases with simple example and Loss of Flow Accident have been simulated,and the comparison shows that the COSINE results agree well with RELAP.%cosFlow 软件是国家电投集团科学技术研究院有限公司核电软件技术中心自主研发的堆芯设计和安全分析一体化软件包COSINE中的热工水力与安全分析软件.主泵是cosFlow软件中用于压水堆核电厂主回路分析的重要设备.本文介绍了基于动力学原理的主泵模型,该模型采用惯量方程计算泵的角速度,采用泵的特性曲线得到泵的扬程值.本文搭建了泵的简单算例和全失流事故算例,利用 COSINE 主泵模型和参考程序 RELAP 计算结果对比,两者计算结果趋势一致,吻合较好;结果表明:COSINE 主泵模型能正确模拟主泵,COSINE 主泵模型能够很好的进行核电厂设计和安全分析.