应用多通道模型对闭式燃料栅格反应堆进行热工水力分析时，首先需要解决流量分配问题。

When multi-channels model is used for thermal-hydraulic analysis in reactors with closed fuel lattice, the mass flux distribution must be solved at first.

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它包括脉冲堆自然循环分析程序（MC-FLOW）、堆芯热工水力分析程序（MC-THAS）和脉冲堆瞬态分析程序（MC-TRAN）。

They are the natural circulation flow analysis code (MC-FLOW), the core thermal hydraulic analysis code (MC-THAS) and the pulsed reactor transient analysis code (MC-TRAN).

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该模型可用于分析压水堆核电厂U型管自然循环式蒸汽发生器的热工水力瞬态过程。

This model can be used to analyze thermal-hydraulic transient behaviour of inverted U-tube steam generators in PWR power plants.

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