Though "three-phase traffic theory",free flow,synchronized flow,and jam flow were identified in flow rate-density plane of traffic flow in the basic segment traffic of urban arterial street.
通过对仿真模型输出的数据进行分析,发现城市主干道交通流呈现出不同的相位特征,应用"三相交通流理论,在城市主干路基本路段的流量-密度平面中将交通流划分自由流、同步流和堵塞流3个相位,并具体讨论各个相位的交通流特性,确定了各个相位的关键阈值,标定了每个相位的区域范围。
Estimation of the vehicle running status or the flow moving for free flow is important for forecasting the travel time.
确定车辆运行是否处于自由状态和自由状态下对应的最大交通量对于计算和预测车辆旅行时间是非常重要的,本文通过分析自由流状态下车辆的运行特点和非自由流状态下车辆之间的相互影响,采用秩相关系数来反映车辆之间的相互作用,并由此来确定车辆处于自由流状态下时对应的最大流量,并用实际观测数据对该方法进行了验证,结果表明该方法是可行的。
It divided traffic flow into free flow and congested flow.
作为传统交通流理论的基本图方法是以道路交通的车辆密度和流量关系为基础发展出的一整套交通流理论,它将交通流区分为自由流相和拥挤流相。
Investigation of the density flowfield of under-expanded free jet with acetone planar laser-induced fluorescence;
欠膨胀自由射流密度场的丙酮平面激光诱导荧光显示与测量
Based on sandblast working principle and structural characters of blast gun, free jet model was developed in eject sect.
根据喷砂工作原理和喷枪结构特征建立了引射段的自由射流模型。
Based on sandblast working principle and stuctural characteristics of blast gun,free jet model was founded in eject section.
根据喷砂工作原理和喷枪结构特征建立了引射段的自由射流模型,并以一种具体喷枪结构参数为计算对象,利用有限元软件CFX进行流场模拟分析,在此基础上研究了陶瓷喷砂嘴内的流场各种特性及其对冲蚀参数的影响,为进一步的研究陶瓷喷砂嘴的冲蚀磨损机理提供了重要的理论依据。
Got out the appropriate distance between nuzzle and mixing chamber based on analysing the characteristic of the free fluid,and optimized the performance of the jet pump.
介绍了射流泵在制冷循环中的工作原理,建立了射流泵的物理模型;分析了自由流束的特性,说明了射流泵中喷嘴距离混合室的最佳尺寸,最佳尺寸能使射流泵的工作性能得到优化。
Determination of critical Reynolds number at outlets of free jet flows;
自由射流出口临界雷诺数的确定
To investigate the influence of nozzle characteristic on Pelton turbine, the free jet flow of the nozzle was numerically simulated by CFD technique for multiphase flow on the base of experiment in this paper.
为了研究喷嘴特性对冲击式水轮机性能的影响,在试验的基础上,采用CFD技术对喷嘴自由射流进行多相流的数值模拟。
A modified k-ε model,a k-ε-kp gas-particle model and a EBU-Arrhenius model is applied in the simulation of turbulent free jet flow of pulverised coal combustion in different load cases.
采用修正的k-ε湍流模型,利用k-ε-kp气固两相模型和EBU-Arrhenius燃烧模型模拟了不同工况下煤粉气固两相自由射流燃烧的过程。
capillary free electrophoresis
毛细管自由流动电泳
GATS and the Freedom Movement of Natural Persons;
《服务贸易总协定》与自然人自由流动
flow freely, as of air or liquids.
像空气或液体一样自由流动。
free movement of workers within the European Community
在欧洲共同体内部工人的自由流动
Money shall circulate freely within the common market.
货币应在共同市场内自由流通。
Standing Committee on the Free circulation of Scientists
科学家自由流动常设委员会
1.To help trade flow as freely as possible
1.使贸易尽可能的自由流动；
The pitot-static tube can be used only in free air.
皮托管仅能用在自由流中。
free nappe
自由射流, 自由水舌, 溢流水舌
To pour out and cause to spread freely.
散开流出并自由散开
Code of Liberalization of Capical Movements
资本流动自由化准则
To move about or flow freely, as air.
流动，流通自由走动或流动，象空气一样
Numerical simulation of free surface turbulence flow
带有自由表面紊流流场的数值模拟
humidity ratio of moist air in the free stream
自由气流湿空气的湿含量
the service is first class and the freedom is almost total.
服务是一流的，自由是完全的。
Two-Way Flow of Population Marks Free Migration
人口双向流动是“自由迁徙”的标志
Experimental Study on Decomposing PAHs with Radical Shower Induced by DC Corona Discharge;
直流电晕自由基簇射脱除PAHs试验研究
Optical Study of OH Radicals Produced by DC Corona Discharge;
直流电晕放电OH自由基发射光谱研究