The developed three dimensional PWR neutronic/thermal-hydraulic coupled transient analysis code system is of great significance for PWR accident analysis and safety review.

• 同时，本论文所研制的三维PWR物理与热工-水力耦合的堆芯瞬态分析计算程序包对压水堆的事故分析及安全评审具有工程实际应用价值。