Accurately deriving the true liquid flow velocity is the key for determining the stratification flow rate of oil and water and logging interpretation of liquid producing profile 摘要准确求取流体的真实流动速度是确定油水各相分层流量及产液剖面测井解释的关键。
Therefore the upper layer is water flow and the nether layer is debris flow . the moving water compressive force and the shear force of interface are taken into account 将粘性泥石流与主河的汇流视为分层流研究，上层为主河水流模型，下层为水下泥石流运动模型。
Abstract : the mountain wave induced by a ridge in two - layer stratifiedfliud has been successfully simulated in a tank . the wave pattern is almost the same compared with the linear theory result qualitatively 文摘:利用不同密度分层的盐水模拟稳定层结大气条件，在水槽中成功地模拟了两层大气分层流中二维山脊引起的地形波，得到的波动图像与线性理论模式结果在定性上基本一致。
According to different flow patterns , a new transferring rule for oil - water two phases system flowing model in pipes is built in including the stability rule for stratified flow patterns and transferring border and anti - phase border for deconcentrating patterns and mixture patterns 根据管内油、水两相流流型特征，建立了新的油、水两相管流流型的转换准则。它包括：分层流型的稳定性准则、分散流型和混合流型的转换边界及反相界线。
This paper roughly states the theoretical basis of the teaching - studying basis of classification and mobile classes . with the instructions of the theory of structure learning , the theory of multi - intelligence and the theory of teaching in accordance with students " aptitude , the author carries out research and exploration into the teaching practice of level c students in the classification , who are slow in learning . it mainly does some research on some principles , strategies and some teaching modes of level c in order to excavate the potentiality of different levels of students , improve students " comprehensive quality , foster students " initiative and then promote students " individual development by chemistry teaching 本文从建构主义学习理论、多重智力理论及因材施教理论方面初步阐述了对分层流动走班教学的理论依据，对分层流动走班教学c层班(学习困难学生)的教学实践进行探索和研究，主要研究了c层班的教学原则、教学策略及教学模式，以期通过分层教学挖掘不同层次学生潜力，通过化学教学提高c层学生的综合素质，培养学生的学习主动性，促进学生的个性发展。
For the case of transporting suspended fine sand , a single - fluid model is used to calculate the flow resistance by solving the navier - stokes equations . the computed agrees well with the measured . and for the case of transporting medium - sized sand , a two - layer model is used and the model produces a good agreement with the experiment data 对管道输送细沙悬移质的流场，采用单流体模型进行数值求解n - s方程，计算结果与实验资料相吻合;对具有分层流动的中沙管道水力输送，采用两层代数模型进厅了计算分析，阻力损失的预测结果与实验吻合较好;最后对管道输送粗沙的阻力特性和运动机理进行了分析探索，提出了进一步研究的方向。
The experimental results show that the method is effective to identify the flow patterns of bubbly , plug , stratified , wavy , slug and annular in a horizontal pipe . the identification accuracy is shown as follows : bubbly flow is 93 . 3 % , plug flow is 85 . 3 % , stratified or wavy flow is 97 . 3 % , slug flow is 98 . 6 % , and annular flow is 92 . 7 % . an estimation of the process time is 22 frame / s 实验结果表明，该方法能自动有效地识别水平管道内的气泡流、塞状流、层状流、波状流、弹状流和雾环状流等基本流型；识别准确率如下：气泡流为93 . 3 ，塞状流为85 . 3 ，分层流为97 . 3 ，弹状流为98 . 6 ，雾环状流为92 . 7 ；识别图像速度约为22帧秒，适合于在线实时识别两相流流型。
