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鉴于一般差分格式在模拟快堆系统中间热交换器的事故时会产生温度振荡现象，为了保证数值解法的稳定性和差分精度，采用全隐二阶迎风差分格式对中间热交换器进行了流量失衡模拟，彻底解决了温度振荡问题，所得结果和实验结果吻合良好，而且还可以达到超实时的模拟效果。最后，还将该方法用于对堆芯失流工况的模拟，也取得了良好的模拟效果。
In order to ensure the stability and differential accuracy of the numerical solution, a universal implicit second-order upwind difference scheme is used to simulate the temperature imbalance of the intermediate heat exchanger because the general difference scheme can simulate the temperature oscillation in the event of an intermediate heat exchanger. Simulation, completely solve the temperature oscillation problem, the results obtained and the experimental results in good agreement, but also can achieve ultra-real-time simulation results. Finally, the method is also used to simulate the core loss of flow conditions, but also achieved good simulation results.