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hammer 中如何模拟管道爆管?

如果模拟管道爆管情况?

  • 你好,如果要模拟爆管发生时刻的瞬态情况,需要在Hammer中设置爆管瞬态事件,比如确定爆管发生的时间和爆管流量,可以通过设置周期水头-流量组件,或者排放到大气组件,来模拟爆管处的流量随时间变化,或者是压力与出流量的关系。

     Modeling Reference - Discharge To Atmosphere 

  • 您好,我看了一下连接里的说明,想再确认一下,以免理解错误。我理解的是爆管可以用排放到大气组件,Discharge Element Type可以选阀门,Time to Fully Open or Close可以填0来模拟突然爆管,Pressure Drop (Typical)可以填稳态时的压力,Flow (Typical)是需要利用孔口出流公式V = C*(2g*headloss)^0.5,其中C是系数,headloss等于Pressure Drop,计算出流速V之后,再根据孔口面积乘以流速V计算出孔口出流量,填在Flow (Typical)?

  • Ultimately it is up to you to decide the correct pressure drop and corresponding flow, but yes, the orifice equation method you describe is one possible way, if your opening acts like an orifice.

    最终要由你来决定正确的压降和相应的流量,但是,如果你的开口像一个孔口,你所描述的孔口方程式方法是一个可能的方法。


    Regards,

    Jesse Dringoli
    Technical Support Manager, OpenFlows
    Bentley Communities Site Administrator
    Bentley Systems, Inc.