Crank-Nicolson finite-difference method is used to calculate the temperature field in the rotor artificially during sub-critical 300MW steam turbine cold startup.

• 采用克兰克-尼科尔森差分法对亚临界300MW汽轮机进行了冷态启动过程的转子温度场仿真计算,通过其结果分析,提出了运行建议。