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为什么负值不对呀?你的压力在边界上还是你设置的那两个值么(outlet是0.002, outlet_sec是0.0015)?话说这两个值单位是Pa吧,为什么这么小?另外你的 pRefCell是0,pRefValue也是0,一般设置参考点和参考压力才比较常见,参考压力通常是大气压。