time-dependent flow

Because limit cycle is an important topological feature, and more importantly, its occurrence is often accompanied by creation of bifurcations, detecting it is a indispensable condition of detecting bifurcation, studying chaos and unsteady process in complex time-dependent flow fields.

由于极限环是一个重要的拓扑特征且常伴随分岔的产生而出现，因此，对极限环的检出就成为检测分岔、进而研究复杂流场中混沌现象和不稳定过程的不可缺少的条件。

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Meanwhile, the time chart of valves, deduced by analyzing the deformation of the stacking valve group and the flow field characteristics near the valve group, validated the model.

对叠加阀片组的变形及阀片附近区域油液的流场特性进行分析，得出阀片的时间历程图验证了模型的正确性。

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Optimization of Time-dependent Lumped-parameters of Left-coronary Flow Model

左冠脉循环建模中的参数优化

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Model-based Study of Time-dependent Coronary Blood Flow Distribution in Left Ventricular Wall and Its Dependences on Coronary Pressure Driving Force

用模型方法研究心肌血流的时相分布及其灌注压依赖性

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In economic work, we should pay attention to opening up the source and regulating the flow from time to time.

在经济工作中, 应该经常注意开源节流.

《现代汉英综合大词典》

Detection and Visualization of Unsteady Structures in Complex Time-Dependent Flow Fields

复杂时变流场中不稳定结构的检出及可视化

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Hence, the solution of APF digital control system is introduced in the mean time that the flow chart of this solution is presented, in which the initial design concept has been established for hardware design and software control procedures.

并以DSP芯片TMS320F2812为控制核心，提出了有源电力滤波器全数字化控制系统的实施方案，对控制系统的硬件电路设计和软件控制流程给出初步设计方案。

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A realizing method on the random changing tool from modern machining center was studied by SIEMENS S7-200 PLC controller. The control process of tool storehouse fixed position was mainly introduced. At the same time, its flow chart and ladder diagram was furnished.

基于西门子S7-200PLC控制器，研究现代加工中心随机换刀方式的实现方法，通过编程方式着重介绍刀库定位的控制过程，同时给出相应的控制流程图和梯形图程序。

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On the type selection of library's hard disk array system This paper presents algorithm on time compression and bypass flow reduce frequency along with method of hard disk array storage.

提出时间压缩和分流降频算法以及硬盘阵列存储方法，并由此实现一种新颖的解决了跟踪雷达对跟踪波门内的雷达回波信号的高速大数据量信号实时采集和存储系统。

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Research on Variation Analytical Approach for Time-dependent Rotation Flow of Non-newtonian Fluid in a Ring Sleeve

环形套管内非牛顿流体非定常旋转流动变分解析法研究

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Of particular significance to the theory in flow over bluff body and the experiment analysis methods was the definition of vortex shedding character dimension, which was first proposed by the researcher to analyze the time-dependent wake flow quantitatively.

首次提出旋涡脱落特征尺度来定量分析非稳态尾流，是一次意义重大的钝体绕流理论和实验分析方法上的创新。

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Investigation on Boundary Element Method for Solving the Time-dependent Compressible Flow of Fluid

求解非定常可压缩流动问题的边界元方法的研究

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On the basis of leaching experiment data, Darcy law and Solute migration as basic equations, we simulates a time-dependent porous media which produced by gravity flow of the basic model with the help of COMSOL software.

以浸出实验数据为依据，达西定律、溶质迁移扩散为基本方程，借助COMSOL软件，建立了与时间相关的多孔介质中由于重力作用产生流动的基本模型。

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To demonstrate the capability in solving interaction problems of multiple rigid body and fluid, the whole methodology coupled with rigid body dynamics equations is used to simulate propagating shock and double cube interaction, time-dependent flow structures are obtained.

作为多个自由刚体与流体耦合运动问题的简单例证，耦合刚体动力学方程，模拟了激波与双立方体的相互作用，得到了非定常流场结构。

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