子通道分析程序LINDEN的开发与初步验证

Development and Verification of Subchannel Analysis Code LINDEN

摘要: 中国广东核电集团有限公司自主开发的子通道分析程序LINDEN采用基于同位网格有限差分技术的四方程漂移流模型以及面向对象的模块化编程技术。该程序具备分析计算的可靠性、稳定性。通过LINDEN和COBRA-Ⅳ程序分别对大亚湾1#、2#机组稳态工况进行了计算分析。结果表明，LINDEN程序和COBRA-Ⅳ程序的计算结果总体吻合较好，LINDEN程序可适用于大型压水堆的热工水力分析。

Abstract: LINDEN is the self-reliant subchannel analysis code of China Guangdong Nuclear Power Holding Co., Ltd. (CGNPC), which employs the four-equation drift flux model of two-phase flow. The entire code has reliable and stabile calculating ability by using modular, object-oriented programming technology. COBRA-Ⅳ and LINDEN were used to calculate the Daya bay Unit 1 and 2 at the steady-state conditions. The comparison results show that the two codes agree well with each other. LINDEN is suitable for thermal hydraulics analysis of large pressurized water reactor.