将非饱和含湿多孔介质层内液体饱和度当量为无量纲的液层厚度,在多孔层内发生相变时其分布规律直观地反映相变传热能力从而预示临界热流(CHF)的发生.计算结果显示,多孔层中心处最容易出现干涸而导致CHF;残余饱和度和孔隙率越大,越不容易出现CHF;饱和度分布形状(液层形状)主要受输入热流密度和孔隙率的影响,热流越小、孔隙率越大就越平缓.
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