第33卷第4期 2013年12月
核科学与工程
Nuclear Science and Engineering
Vol.33No.4
Dec.2013
蒸汽发生器稳态运行特性的数值模拟研究
陈佳跃，张小英
（华南理工大学电力学院，广东广州510640）
摘要：基于四方程漂移流模型，采用一维分布参数方法对U型管蒸汽发生器的一次侧、二次侧、传热管和蒸汽室进行模拟。采用基于交错网格的一阶迎风差分格式对模型方程进行离散化，通过交叉计算热工-水力过程来选代求解稳态运行特性，并编制了基于MATLAB语言的仿真程序。利用此程序对秦山核蒸汽发生器的稳态运行工况下的热工水力过程进行计算，将结果与RELAP5程序的计算结果进行比
较，并分析了100%、75%、50%、30%、15%负荷下的蒸汽发生器的运行特性。关键调：蒸汽发生器；稳态运行；漂移流模型；数值模拟
中图分类号：TL353
文章标患码：A
文章编号：0258-0918(2013)04-0384-08
NumericalSimulationonSteadyOperation
CharacteristicoftheSteamGenerator
CHEN Jia-yue,ZHANGXiao-ying
(School of Electrie Power, South China University of Technology, Guangzhou, Guangdong, 510640, China)
Abstract: Based on the four-equation drift flux model, this paper establishes a one-dimension distribution model for the vertical U tube steam generator. The model considers the area of the primary side, the secondary side, the U tube and the steam dome, Firstly, the discrete equations are obtained by using the first order difference method with the staggered grid, and solves with iteration by applying intersected calculation of thermal and hydraulic process. This work is compiled into a simulated program with the MATLAB software, Applying the program to simulate the thermal-hydraulic parameters under steady state operation of Qinshan NPP steam generator(SG), and the calculation is compared with the RELAP5 program. Finally, the operation characteristics of steam generator under 100%,75%,50%,30%,15%powers are computed and analyzed.
Key words: steam generator; steady state operation; drift flux model; numerical simulation.
收稿日期：2012-04-18：修回日期：2012-09-3
基金项目：国家自然科学基金（10702020、51176052)，广东省科技攻关项目（2009B010900020)）；华南理工大学中央高校基本科研业
务费专项资金（2009ZM0279)。
作者简介：陈佳跃(1986—），男，硕士研究生，主要从事反应堆两相流过程的热工水力的数值研究 384