The result indicates that DEM has wide prospects in numerical simulation of the dense solid-gas flow.
本文的研究结果表明，离散单元法在密相气固相流的数值模拟研究中具有广阔的前景。
The gas solid contact efficiency was improved by adjusting the flow tracks of catalyst.
通过改变催化剂的流动轨迹达到改善气固接触效率的目的。
The experimental study of a gas solid flow pattern and gas diffusion characteristics using polystyol particles and glass bead has been carried out in a pressurized spouted fluidized bed.
在一个加压喷动流化床装置上进行了冷态实验，研究加压条件下床中的气固流动状态和气体在各部分的扩散特性。
In the numerical simulation of a CFB apparatus, the result of the new model agrees with the experiment data well, so it shows the remarkable advantage or simulation of dense gas-solid two-phase flow.
经循环流化床数值模拟的检验证明，新模型的计算结果与实验数据吻合，从而在稠密气固两相流动的数值模拟中具有相当的优越性。
In this paper, a dynamic model of the gas-solid two phase flow in magnetically fluidized bed is established first.
本文首先从理论上建立了磁流化床气固两相流动的动力学模型。
Cyclone separator is a kind of equipment that USES rotary motion of gas-solid two-phase fluid to make the solid particle separated from the gas flow by centrifugal force.
旋风分离器是一种利用气固两相流体的旋转运动使固体颗粒在离心力的作用下从气流中分离出来的设备。
The structures of the gas solid two phase flow in the suspension bed were measured by a particle dynamic analyzer (PDA) at different apparent velocities for each of the nozzle structures.
用颗粒动态分析仪(PDA)测量了悬浮床内气固两相流动的结构，确定了不同表观气速和不同进气结构条件下的两相流场的特点。
Firstly, the pressure distribution of gas solid flow along the circulating route is analyzed and experimentally studied.
分析气固两相流在循环路径中的压力分布，并通过试验对其进行了研究。
An mount of analyses and calculations are carried out in the case of measuring the particle parameters in gas solid phase flow by extinction method.
然后针对实际中，在采用消光方法测量气固两相流流场中的颗粒参数的情况下，对校正系数的表达式进行了大量分析计算。
The precise measurement and real-time monitor of gas-solid flow parameters is important for the product's quality control, stability of industrial processes, also the balance of energy supply.
对气固两相流参数的精确测量及实时监控直接关系到产品的质量、工业过程的稳定或能量供给的平衡。
The results show that the stronger the particle-particle collisional dissipation and gas-solid drag force, the more heterogeneous the flow structure.
计算结果表明颗粒间非弹性碰撞和气固间曳力的增大均使气固两相流动的非均匀性增大。
Gas solid two phase flow problems are widely met with in power equipment and numerical simulation methods are often used for studying them.
在火力发电设备中，广泛存在着气固两相流动的问题，用计算机对气固流动进行模拟研究已成为重要手段。
In order to intensify the collision among the inhalable particles, a gas-solid jet flow was introduced into the agglomeration chamber to generate a local turbulent flow field.
团聚室中引入气固射流，使团聚室内形成局部湍流，强化颗粒间的碰撞。
Owing to the short residence time, more uniform gas-solid flow and reduced backmixing of downer reactor, it can obtain more object products and the dry gas yield can be inhibited.
由于下行床具有短停留时间、气固流动更均匀和返混小的优点，能获得更高的产品收率，使干气收率受到抑制。
The interaction between gas and particles under different flow regimes, ranging from minimum fluidization to pneumatic transportation, was investigated in a vertical gas-solid flow system.
本文对垂直气固两相流动系统中，从初始流态化到气力输送的整个区域内气固两相之间的相互作用规律进行了研究。
In air and mist drilling, annular carries are the typical of gas, liquid and solid multiphase flow, and its mechanism and principles are very complicated.
在空气雾化钻井中，井眼环空携岩流动是一种典型的气、液、固多相流动，其机理和规律十分复杂。
Particle in the gas and solid two- phase flow of precalcining system, particle characteristic and moving rule are important factors that influence heat system efficiency.
预热预分解系统的气固两相流中，颗粒、颗粒特征及运动规律是影响预热系统热效率的重要因素。
Then the Lagrange particle track model and the uniphase coupling method are used to simulate the gas-solid two phase flow field in the centrifugal fan.
再采用拉格朗同颗粒轨道模型，利用单相耦合法模拟了风机内部的气固两相流场。
The optical-electrical measurement is an effective and feasible way to measure solid particle concentration and velocity in gas-solid two phase flow.
应用光一电检测方法测量气一固两相流中固体微粒浓度、速度，是一种十分有效和可行的方法。
According to the thoughts of immersed boundary method (IBM), a new model for simulating gas-solid multiphase flow with few grids to describe particle is presented.
本文提出了一种基于内嵌边界法(IBM)的思想，在描述颗粒只有较少网格时能较为准确地计算气固多相流的模型。
Based on the new viewpoint of the interaction between solid deformation and gas leak flow, the mechanism of gas leakage in double deformable coal seam can be understood.
应用煤岩体变形与煤层气(瓦斯)越流相互作用的新观点，研究了双层系统煤层气越流运移的机理。
So, for rapid gas-solid reaction, the interaction between the flow of gas mixture and gas-solid reaction can't be neglected.
研究表明对于显著气固反应不能忽略化学反应与气体渗流的相互作用。
With increase of mass flow rate, solid-gas ratio increases first and then decreases.
随着煤粉的输送流量的增大，固气比先增大后减小。
DEM (Discrete Element Method) is used to simulate the gas-solid flow of a two-dimension fluidized bed with L-type wind caps in this paper.
该文采用离散元素法DEM模型对二维L型定向风帽流化床中的气-固流动特性进行模拟。
The formula for calculating the solid flow rate in gas-solid flow oy using venturi meter is presented, which is also linear under certain conditions.
最后得出气—固两相流中，用文丘利流量计测量固相流率时的计算公式。它在一定条件下也是线性的。
Particle velocity is an important parameter describing the flow state of gas-solid two-phase flow.
颗粒的流动速度是反应气固两相流流动状况的一个重要参数。
The dissertation studies the characteristics of gas mixing and the gas-solid two phases flow in spouted-fluidization bed with experiment and numerical simulation methods.
本文通过采用实验和数值模拟的方法，研究了喷动流化床内气体混合特性以及床内气固两相的流动特性。
This paper introduced the theory and knowledge about two phase flow, and summarized the techniques and instruments of measuring concentration of Gas-Solid multiphase flow.
本文介绍了两相流的相关理论与知识，就气固多相流浓度测量技术进行了理论综述，并对现有的气固多相流浓度测量设备做了介绍。
This paper introduced the theory and knowledge about two phase flow, and summarized the techniques and instruments of measuring concentration of Gas-Solid multiphase flow.
本文介绍了两相流的相关理论与知识，就气固多相流浓度测量技术进行了理论综述，并对现有的气固多相流浓度测量设备做了介绍。
应用推荐