An artificial viscous term is introduced in the equation to treat the supercritical flow with embeded shock waves and to eliminate the discontinuous solution.
为了处理超临界流和有冲波情况，我们在方程中引入人工粘性项，以消除解中可能出现的不连续性。
The wave input method for viscous-spring artificial boundary, calculating method of static boundary conditions on the proposed unifiedboundary and their numerical simulation techniques are studied.
研究了粘弹性人工边界上的波动输入方法，给出了粘弹性静-动力统一人工边界上静力边界条件的确定方法；
Under the viscous-spring artificial boundary condition, the input method of seismis wave from the artificial boundary is compared with that from the surface of the dam foundation, and ther.
采用粘-弹性人工边界条件应用于重力坝的动力响应分析中，解决了波在边界上的反射问题。
Thermal production, which is used in Liaohe oil Field as a main method to explore viscous oil, gives rise to the artificial increase of CO2 content in the crude produced from well.
辽河油田稠油开发主要以热力采油为主，人为地使油井采出物中二氧化碳的含量增加。
In the light of the difficulty in artificial lifting of waxy oil well, high pour-point oil well and viscous oil well, a new tubing heating system is developed.
针对含蜡油井、高凝油井、稠油油井生产过程中的举升难题，研制了一种新型油管加热采油装置。
In the light of the difficulty in artificial lifting of waxy oil well, high pour-point oil well and viscous oil well, a new tubing heating system is developed.
针对含蜡油井、高凝油井、稠油油井生产过程中的举升难题，研制了一种新型油管加热采油装置。
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