查询词典 liquid flow

It introduces the method of measuring theparameter of the multiphase flow, the familiar the equipment measuring the multiphase flow,analyzed contrastively the plan based corrrlation measurement and nondisjunction and basedgas- liquid adaptive cylindrical cyclone, the paper chooses the last one for the research plan.

介绍了多相流参数测量的方法；介绍了常见的多相流测量装置；对比分析了基于相关测量的不分离的测量方案和基于小型管柱式气液旋流自适应分离的分离测量方案，选择了后一种方案作为本文的研究方案。

The flow field around Taylor bubbles rising through stagnant liquids in vertical tubes is considered as potential flow, and the first order approximation of the control equation of gas-liquid interface and the rising velocity of Taylor bubbles are obtained.

应用势流理论分析了垂直管滞止液体中Taylor气泡周围的流场，得到了气液界面的控制方程和Taylor气泡上升速度的一阶近似结果。

Since the ion radial distributions in liquid directly affect the electroosmotic flow, this study is useful for electroosmotic flow research and the design of nanofluidic devices for species separation by applied potential gradient.

由于离子的径向分布对电渗流有直接影响，因此这一仿真对电渗流的理论研究和利用外电场实现离子分离的纳流体器件的设计具有重要的参考价值。

To find the mechanism of refluence in the flue,authors conduct the numerical simulation of liquid-field in the flue of multilayer building by adopting K-ε turbulent flow model and two-phase flow theory,and plots the charts that the pressure,consistency and velocity distribute in the flue.

为了探明多层住宅烟道串味的机理，采用κ-ε湍流模型，利用两相流理论，对多层住宅烟道内的流场进行数值模拟，得到烟道内的压强、速度和体积分数分布图。结果表明：在第一支烟道与主烟道的交汇处压强梯度较大，一楼排放的烟气大部分向上流动，第二支烟道附近油烟的体积分数梯度大

Our main products are: H Series, DK Series metal tube rotameter, VFM-type vortex flowmeter, DW18 Series Flow Switch, DWM1000 electronic flow switches and plug-in DWM2000 electromagnetic flowmeter, BM51, BW25 Series Level Gauge, BM17 , BM34 series liquid level switches, etc., the company is the German company based in China Krohne only metal tube rotameter service and maintenance centers.

公司主要产品有：H系列、DK系列金属管浮子流量计、 VFM型涡街流量计、DW18系列流量开关、DWM1000 电子式流量开关和DWM2000插入式电磁流量计、 BM51、BW25系列液位计、BM17、BM34系列液位开关等，本公司是德国KROHNE公司设在中国唯一的金属管浮子流量计服务及维修中心。

Therefore,five operational parameters such as mixed liquid suspended solid,flux,aeration rate,suction and stop time of the pump,and the ratio of up flow area to down flow area were chosen to undertake the orthogonal experiment in order to research optimum operational condition of the MBR.

为此，选择污泥浓度、膜通量、曝气量、抽吸/停抽时间、反应器升流区与降流区面积之比进行正交试验，开展了MBR操作条件的优化研究。

Numerical Simulation of Liquid Steel Flow Characteristics in Centrifugal Flow Tundish for Continuous Casting

采用数值模拟对离心中间包内的钢液流动特性进行了研究，考察了分配室中挡坝的位置及旋转磁场强度对整体流场结构的影响，并通过试验验证了计算结果的可靠性。

Numerical simulations were done for a bistable latch valve of the system by FLUENT, and three groups of datum for different fluids were obtained with the same effective exit sectional area. Besides, a static mathematic model for the electromagnetic valve was established based on the obtained datum. Secondly, the motion of the valve spool was realized by UDF file in FLUENT. Three kinds of motions, uniform, acceleration and motion driven by the coupling effect of the liquid resistance and the electromagnetic force, were calculated and compared. The dynamic characteristic of the electromagnetic valve was obtained by analyzing the relationship of the mass flow rate of the inside flow field of the electromagnetic valve, the change of the drop pressure of the passageway of the valve, and motion time.

并针对系统中的某双稳态电磁阀，使用商用CFD软件FLUENT对其进行内部流场的数值模拟，通过使用不同流体介质，不改变阀门有效出口截面积的情况下，分析得到的三组数据，建立了该电磁阀的静态数学模型；通过编写UDF文件，实现对阀芯运动方程的控制，在阀门做由闭合到开启、开启到闭合运动时，控制阀芯分别做匀速运动、匀加速运动以及阀芯受到液体阻力与电磁力作用力的耦合力的运动，分析了三种工况下电磁阀内部流场质量流率和阀门出口入口压降的变化以及运动时间，从而得到该电磁阀的动态特性。

According to the full model of the whole process obtained through simulation, this paper emulated varied cases and analyzed sensitivities under the different feed flow, H_2S content, shifted gas/unshifted gas ratio, liquid/vapour ratio, N_2 flow used to stripping, H_2O concentrate in loan methanol, and calculated hydraulics of every columns.

根据模拟得到的整个工艺流程的完整模型，本文对变工况条件进行了仿真计算，对处理原料气负荷、进口原料气H_2S含量、变换气与未变换气负荷比、液气比、气提N_2量、贫甲醇水份的变化进行了工况研究与敏感性分析，并对各塔进行了水力学模拟计算分析。

Results indicate that the optimum extraction conditions are as follows: ultrasonic power is 600W, temperature is 53℃, the ratio of liquid to solid is 8︰1, ultrasonic treating time is 70min, reflux extraction time is 120min, the extraction rate of oleanolic acid is 3.000 mg/g; XDA-1 resin is favorable in purification of OA in Chaenomeles sinensis Koehne, the optimum purification conditions are found to be 0.794 mg/mL of OA concentration, the flow rate of adsorption is 0.5 mL/min; the desorption solvent is 90% ethanol, and the flow rate of elutant is 1.0 mL/min.

结果表明，超声波辅助提取最佳工艺条件为：超声功率600 W、提取温度53℃、液料比8：1、超声波提取70 min，回流提取120 min，齐墩果酸得率为3.000 mg/g；XDA-1型大孔树脂对齐墩果酸具有较好的吸附和解吸效果，最佳纯化工艺条件为上柱液浓度0.794 mg/mL，吸附流速0.5 mL/min；以90%浓度乙醇洗脱，洗脱流速1.0 mL/min，纯化后得提取物中齐墩果酸纯度可达26.55%。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。