...Flow state parameters, in particular, critical pressure ratio, are essential in design and calculation of gas well downhole chokes, determining flow state in the choke and in guarantee of steady production of a gas well.临界状态参数,尤其是临界压力比,这是天然气井下节流嘴设计计算以及判断节流嘴内是否达到临界流动,能否实现气井稳产的关键数据。
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The simulation by adding stable state fault was used to study the effect of flow resistance coefficient of oxidant pipe in gas generator and chamber and oxidant temperature on the engine parameters.
用添加稳态故障的方法分析了燃气发生器和燃烧室氧化剂管路流阻系数，以及氧化剂温度对发动机参数的影响。
Another method is to use the pressure difference between adjacent nodes as state parameters, this can make the model more complete and can improve calculation accuracy under low-flow system.
另一个方法是使用相邻节点之间的压差作为状态变量，这种处理可以使模型更加完整，也可改善低流量下的计算精度。
The flow state within the corrosion fatigue crack and the influence of other parameters on the flow velocity for compact tension specimen were discussed according to the model.
据此，以紧凑拉伸试样为例，讨论了影响速度的各参数及裂纹内的流态。
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