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- transient flow permeability 瞬时流动透气性,瞬变流透气率
- Therefore, the calculation of quick transient flow in gas pipeline is ac... 特征线法物理概念明确,数学分析严谨,计算精度高。
- The Numerical Results of the Transient Flow in the Reser voir with Constant Pressure Boundary. 均质圆形定压油藏不稳定渗流的数值解
- During the open and shut in period of a gas well, the gas flow within the borehole changes into transient flow. 气井开、关井过程中,井筒内气体的流动为瞬变流动,气体的压力、温度等流动参数是井深和时间的函数。
- In this paper,the partial differential equations of transient flow in the deformed penstock are derived. 本文给出了压力钢管压力脉动的偏微分方程；
- Abstract： In this paper,the partial differential equations of transient flow in the deformed penstock are derived. 本文给出了压力钢管压力脉动的偏微分方程；
- Ikoku C U,Ramey HJ Jr.Wellbore storage and skin effects during the transient flow of non-Newtonian power-law fluids in porous media[Z].SPE7449. 向开理;涂晓青.;分形复合油藏非牛顿幂律流体不稳定渗流的数学模型[J]
- During gas drilling, both the alteration of the drilling parameters and encountering the reservoir will cause the transient flow of wellbore fluid. 气体钻井过程中,调整钻井参数或者钻遇储层都会引起井内流体的瞬态流动。
- The transient flow in subsea pipeline induces the riser system vibration, then causes the system fatigue failure and reduces pipeline life. 摘要海底油气管道中流体的不稳定流动会诱发立管系统的振动，使立管系统弯头部位发生疲劳破坏，影响管道的使用寿命。
- However, there has been only a little amount of information about the transient flow structure in the spool valve because of the essential difficulty of its unsteadiness. 可是,滑阀的瞬变流体结构由于其非稳定性的复杂所以有关的信息较少。
- Moreover, as a kind of turbulent model, Large Eddy Simulation (LES) can capture the transient flow information of every phase, which has attracted more attention. 特别是近几年发展起来的大涡模拟模型(Large Eddy Simulation, LES),由于可以捕捉到流场内各相很强的瞬态运动信息而倍受关注。
- The paper is based upon Aero-Optics theory, pursuing the methods and realization for measuring the density distribution of transient flow field in wind tunnel test. 本论文基于气动光学理论，研究在流场试验中检测高速瞬态流场密度分布的方法与实现。
- The analytical methods for gas liquid two phase transient flow were generalized.Different kinds of methods for studying fluid structure interaction were introd... 指出了目前两相瞬变流流固耦合研究中存在的问题,预测了流固耦合研究的方向应为两相流体瞬态时的流固耦合实验研究和耦合模型的数值计算方法研究。
- Based on the theory of unsteady flow of compressible fluid and the seepage theory of formation fluid, the mathematical model of the gas transient flow in the wellbore has been established. 基于可压缩流体不稳定流动理论及地层流体渗流理论,建立了气体钻井过程中井筒瞬态流动的数学模型。
- The wet natural gas in transmission pipeline assumes two phase of gas and liquid, so its flowing always assumes a slow transient flow state. 在实际运行中，湿天然气在输送管道中存在气液两相，因此管道中的流动总是处于慢瞬变流动状态。
- Reasonable solution to transient flow in steep base slope open channel can be got through leveling in subsections of the channel in combination to the continous equation and energy equations. 大底坡明渠是常见的水工建筑物,其非恒定流计算一直未能得到很好的解决。
- The concept of swirl intensity retention (SIR) was introduced to evaluate quantitatively the transient flow characteristics of the air in the low-emission reentrant combustion chamber. 摘要为了定量评价低排放缩口燃烧室内的气流特性，引入了涡流强度保持性的概念。
- Study on transient flow regularity in low permeability reservoirs with consideration of injection - production ratio 低渗透油藏考虑注采比时不稳定渗流规律研究
- Her feeling of depression was transient. 她那抑郁的心情一会儿就过去了。
- A free flow of water came from the pipe. 水从管道里通畅地流了出来。
