The simulation result shows that the motor - vehicles modals of corsim and simtraffic can apply to beijing , but the models of pedestrian and bicycles are not perfect when the total number of pedestrians and bicycles reach 1150 ( bikes peds / h ) 但行人、自行车模型不能完全准确的描述交叉口的运行状况，当每小时行人、自行车的总流量大于1150辆人小时时，模型的仿真结果与实测数据间有大的偏差，相对误差最高达到88 。
This theoretic model employs the basic idea of correlation measurement , achieve the density wave speed by the correlation of the signals of upper and lower sensors , and get the total flow rate and water cut through the theoretic relationship of density wave speed and total flow rate as well as holdup with the help of drift flux model so as to accomplish the oil / water two - phase flow measurement at last , using the limited available experiment data , the theoretic model has been simplified into an applicable linear alternative which is suitable to homogeneous oil / water two - phase flow measurement to accomplish the oil / water two - phase flow measurement using the density wave phenomena is of highly theoretically valuable for density wave theory research as well as oilavater two - phase flow measurement research . to develop new type oil / water two - phase flow instrumentation based on this theoretic measurement method will be very applicable and promising 在此基础上，针对稳态密度波理论提出了基于密度波理论的油水两相流测量理论模型，该模型以密度波传播理论作为基础，通过上下游传感器信号相关获得密度波传播速度，利用密度波传播速度与总流量以及持相率的理论关系结合漂移模型来求解总流量和含相率，实现油水两相流的测量，在理论分析的基础上，在实验资料有限的条件下，对基于密度波理论的油水两相流测量理论模型作了极限的简化，提出了本文油水两相流测量理论方法应用在测量均匀油水两相流中的实用线性模型。
The problem which identificate oil - water two phase flow pattern with information entropy is discussed profoundly . the information entropy distribute in the range from 0 . 1209 to 0 . 1659 for 61 % kw 91 % . changes of the information entropy with variations of total flowrate and water - cut correspond to oil in water in existing flow pattern map )为61 91时，信息熵值分布在0 . 1209 0 . 1659之间，与流型图对比可知，信息熵值与总流量q _ 1及含水率之间有良好的对应关系，表明此范围为水包油流型(油为分散相) 。
It is shown that when the exit area of secondary nozzle and the fuel / oxidizer ratio is fixed , the increase of mass flow rate of secondary flow lead to the decrease of velocity of mixed flow , and increase of total mass flow rate . the synthetical result of these two phenomenon cause the increase of thrust of rocket ejector , but the increasing magnitude is relatively small , indicating that these is no necessary to claim large bypass ratio in rocket ejector design . in the comparison between two configurations , the typical one has better performance , indicating the importance of pressure ratio 结果表明：在固定二次喷管出口面积和氧燃比的条件下，二次流(引射空气流)流量的增加引起混合气体出口速度的下降和总流量的增加，二者综合作用使发动机推力增加，但增幅不大，表明在设计发动机结构和工作参数时，不必过分追求大的引射系数；两种结构的性能对比分析表明了增压比对引射火箭性能的提高具有重要意义；对引射火箭的热力循环分析同样表明，增压比对于提高发动机性能非常关键。
The measurement of oil / water two - phase flow is primarily accomplished by the combination of total flow rate and holdup measurement , and at present , the rotator flowmeter is used to measure the total flow rate . since the rotator flowmeter has movable parts , which makes its responsibility behave nonlinearly under poor environment of me under hole whose fluids have very complex and changeful characteristics and affects the measurement precision . what ' s more , the widely used centralized measurement instrumentation meets problems in oil wells characterized with high production or high water cuts 通常油水两相流测量主要是通过总流量和持率的测量组合来完成的，目前在总流量的测量中主要使用的是涡轮流量计，由于涡轮流量计具有可动部件使其在流体特性复杂多变的恶劣井条件下的响应呈非线性变化规律，影响测量精度，此外，普遍采用的集流型测试仪器在高产井及含水率高的油井中使用也遇到困难，为此，一种新型的适合非集流型点测的测试方法和测试仪器亟待发展和推广。
So anew type of measurement and instrumentation is badly needed and developed which is suitable for non - centralized and stationary measurement based on this idea , this study take the new type of oilavater two - phase flow measurement and instrumentation development as the basic goal , cany out some theoretic exploration of measurement in order to improve oil / water two - phase flow well logging method and technique , and try to accomplish bom holdup and total flow rate measurement with one equipment simultaneously so as to push forward development of oilavater two - phase flow well logging 本文正是基于这一思想，以开发新的油水两相流测试仪器为目标，进行先期的测量理论探索，试图从原理上改进油水两相流测井方法和工艺，实现利用同种电学敏感原理同时完成持率和总流量的测量，推动油水两相流测井技术的发展。
