At 30° and 20° incidences, there are three separation lines on each side beside the symmetry plane when the flow is laminar and Re=1.4×10〓. In turbulent flow, two separation lines with positions shifted downstream were observed in experiments under the same conditions.
只看流动对称面一侧，在层流状态，Re=1.4×10〓，迎角为30°和20°时都有三条分离线；而湍流状态同样实验条件下只观察到两条，并且分离线的位置推向下游，二次分离线长度也大大缩短。
By the research work upwards, in the range of this paper, the characters of particle deposition in turbulent tube and the influence of the three different kind entrances to thermophoretic particle deposition in laminar flow are obtained, and also gain the characters of particle re-entrainment in different conditions.
通过上述研究工作，最终得出了在本文研究参数范围内，微粒在湍流管道内的沉降特性和层流状态下三种不同入口类型对微粒热泳沉降的影响，以及在不同条件下微粒的再悬浮特性。
Simulations of thermal plasma flow and heat transferare conducted for various conditions and vast technical background, such as forplasma torch with pure argon or argon/hydrogen as the working gas, the plasma torchworking within the laminar or turbulent regime, the plasma torch with subsonic orsupsonic velocity at the exit, the laminar or turbulent plasma free jet or impinging jet, the argon plasma jet issuing into an air surroundings or the argon/hydrogen plasma jetissuing into an argon environment, the subsonic or supsonic plasma jet, the plasma jetat the LTE (Local Thermodynamic Equilibrium) or Non-LTE state, etc.
模拟中考虑了等离子体物性随温度的大幅度变化，考虑了不同的流动状态、不同的工质气体及环境气体，以及亚声速与超声速流动情形，模拟对象包括：以纯氩及氩一氢混合气体为工质的发生器，处于层流及湍流流动状况的发生器，亚声速及超声速电弧等离子体发生器，层流及湍流的等离子体自由射流及冲击射流，空气环境中的氩等离子体射流及氩气环境中的氩-氢混合气体为工质的等离子体射流，亚声速等离子体射流及超声速等离子体射流，LTE等离子体射流及化学非平衡等离子体射流，等等。
Based on the above research results, the mechanism of significant mass transfer enhancement under laminar flow conditions is analyzed.
在此基础上对涡旋波在层流流动下强化传质的机理进行了分析。
As we suppose the flow in the runner is steady flow and imcompressable and 3D vortex flow, applying 3D Euler method and laminar method and turbulent model representing the standard κ-ε model computed the flow field of a Fancis runner for many operating conditions Comparing the simulating results of three kinds of turbulent calculation models roundly we obtained many valuable results.
本文在假设转轮内部流动是定常、不可压缩、全三维有旋流动的基本前提下，分别应用3D欧拉法、层流解法和以标准κ-ε模型为代表的湍流双方程模型，对某一混流式转轮内部流动进行了多工况点、大范围的数值计算，对这三种计算模型的计算结果进行了全面比较，得出了有价值的成果。
On the basis of the experimental study, the heat and mass transfer in dehumidifying process under the given operation conditions were calculated according to the presented numerical model for falling liquid film of laminar flow in liquid desiccant air conditioning system. The calculated results and the experimental data are coincided. It means that the numerical model proposed in this paper is satisfactory.
在实验研究的基础上，根据本文建立的对流换热壁面边界条件下竖板降膜除湿的数学模型及数值计算方法，对给定工况下的除湿过程进行了数值模拟，计算结果与实验结果基本吻合，证实了本文所提出的对流换热壁面边界条件下竖板降膜除湿过程传热传质的数学模型和采用的计算方法是正确的。
The experimental results show that the single-phase frictional pressure drop in narrow annuli is higher than that in normal circular tubes when the convection is in laminar area, and they two are similar in turbulent area. In heat-exchange conditions, the flow frictional curves put up levity characteristics, which bear not only on the peculiar structure of narrow annuli but the changes of viscidity and density of working fluid.
实验结果表明：水在窄环隙内流动摩擦阻力在层流区比普通圆管的流动摩擦阻力大；在紊流区二者差别不大，而且在换热条件下，窄环隙内的流动阻力曲线表现出多变特性，这种阻力特性不仅与窄环隙特殊的结构有关，而且也与进出口温差造成的粘度和密度的变化有关。
Analysis of reservoir formation and distribution and hydrocarbon accumulation conditions indicates that paleotopography, palaeogeomorphology and palaeotectonic movement dominate the formation and distribution of special reservoirs such as Proterozoic buried bill, Paleogene volcanic rock, dolomite and breccia reservoirs in this area. Various hydrocarbon migration paths towards these special reservoirs involve unconformable surface, fault surface, s4 and s3 sandstones, and Proterozoic interior laminar formation.
通过对该区特殊储层的形成、分布、油气成藏条件的分析研究，认为古地形、古地貌以及古构造运动控制该区元古界古潜山、古近系火山岩、白云岩、角砾岩等多套特殊储层的形成与分布；不整合面、断层面、沙四、沙三段砂岩以及元古界内幕层状地层为油气向特殊储集层中运移提供多样化的输导路径。
We suggest three ways to improve the oxygen supply to slices under submerged conditions: optimizing chamber design for laminar flow of superfusion fluid; increasing the flow rate of superfusion fluid; and superfusing both surfaces of the slice.
我们建议三种方式以改善在浸浴下脑切片的氧气供应：优化培养容器设计以利于灌流液的层流；增加灌流液的流速；灌流切片的两个表面层。
Storage of drug products after release; (9) Control and laboratory operations; (10) Aseptic processing, which includes as appropriate: I Floors, walls, and ceilings of smooth, hard surfaces that are easily cleanable; II Temperature and humidity controls; III An air supply filtered through high-efficiency particulate air filters under positive pressure, regardless of whether flow is laminar or nonlaminar; IV A system for monitoring environmental conditions; V A system for cleaning and disinfecting the room and equipment to produce aseptic conditions; VI A system for maintaining any equipment used to control the aseptic conditions.
无菌操作及有关要求：I 地板，墙壁和天花板平滑，坚硬，表面易清洁； II 温度与湿度控制； III 空气经高效过滤器，在正压下过滤，层流或非层流均可； IV 环境检测系统； V 创造无菌环境，房间和设备的清洁，消毒系统； VI 控制无菌环境的设备维修系统。
This paper is focus on the measurement of laminar flame propagation velocity of premixed CH4 with air under two kinds of conditions through the counterflow experimental system. one is with steam catalytic reforming reactions; the other is not.
燃烧系统的各种排放物是空气的主要污染源，城市中的机动车的污染已形成越来越大的威胁。自上世纪70年代末，我国机动车的污染排放量以每年12.7%的速度递增。
The sub-models are interactive and correlative, the primary contents calculated in each sub-model are as follows:(1) Temperature field model: According to actual producing process of hotrolled strip, various boundary conditions were taken into account, including heat losing process such as air cooling, scaling, contacting with roll, cooling between stands, laminar cooling, coil cooling, and heat generating process such as heat of deformation, friction heat, latent heat of phase transformation, and so on.
在本文中，提出以微中浪轧制策略补偿冷却不均造成的板形不良，从理论上分析了微中浪轧制策略的可行性，并给出不同规格带钢的最佳设定值，使微中浪轧制设定由目前依靠经验的尝试性阶段，上升到根据理论计算定量化的描述阶段，对于指导热轧带钢的生产具有重要的意义和实用价值。
The numerical study on the transition delay mechanism for the complex compliant wall of plane plate has been conducted under certain conditions, the results show that varying the mechanical parameters, especially the thickness and rigidity, of the compliant wall along the streamwise direction can improve the stability of the laminar boundary layer and delay its transition to turbulence.
计算结果表明，沿流向改变柔性壁的力学参数特别是厚度和硬度两个参数，在一定条件下柔性壁能明显著提高层流边界层的稳定性和延迟转捩。
Since the ratio of the fiber material and the attacking medium in the cell was 1:400, a quasi-continuous experiment could be performed using laminar flow conditions in the cell with a flow rate of 40 ml/h.
自从这个比例的纤维材料和进攻中，细胞是1：400实验可以用激细胞内层流条件与流量40毫升/小时。
For this reason, a novel PPOP was designed and prepared using two side drilling technology and water-insoluble drug gliclazide was employed as model drug. Influencing factors from six aspects were studied which was drug layer formulation, push layer formulation, coating formulation, orifice properties, tableting art and dissolution conditions, respectively, and the difference between the dissolution profiles of novel PPOP and conventional PPOP was also evaluated by similarity factor (f2). Through determination of the viscosity of drug layer and push layer of the novel PPOP, the mechanism of drug release from novel PPOP was discussed by the help of Poiseuille's law of laminar flow.
因此，本文以难溶性的格列齐特为模型药物，在传统型推拉式渗透泵的基础上，设计并制备了双面打孔型推拉式渗透泵；通过单因素研究从含药层处方、助推层处方、衣膜处方、释药孔性质、压片工艺以及体外释药条件六个方面，对影响双面打孔格列齐特推拉式渗透泵片释药行为的因素进行了详细的考察，同时，应用相似因子法对以上各种因素下双面打孔型推拉式渗透泵和传统型推拉式渗透泵释药特点的异同进行了系统的研究；在此基础上，通过对双面打孔型推拉式渗透泵含药层和助推层黏度的测定，结合流体力学中的Poiseuille层流定律方程，对双面打孔格列齐特推拉式渗透泵片的释药机理进行了较为深入的探讨。
This paper is focus on the measurement of laminar flame propagation velocity of premixed CH4 with air under two kinds of conditions through the counterflow experimental system.
通过对冲火焰实验台测量了不同当量比下的甲烷与空气的预混气和经预催化后的预混气的层流火焰传播速度。
The mechanism of soot oxidation relates with soot nanostructure, types of oxidants and reaction conditions. The widely used soot oxidation model is based on experimental oxidation data of high temperature graphite which are obtained from laminar flame reactor or shock tube.
碳烟氧化机理与碳烟微纳米结构、氧化剂类型以及反应条件均有关系，而目前柴油机碳烟氧化广泛采用的模型，是依据层流燃烧反应器或激波管中高温石墨氧化试验数据提出的。
Heat transfer performance and economic characteristics for laminar and turbulent pulsating pipe flow under different conditions of pulsation frequency, amplitude and different fluid were numerically investigated by applying Fluent 6.0 computer software in this paper.
本文运用FLUENT6.0软件，数值模拟了管内层流和湍流状态的流体在恒壁温的情况下，当流动入口速度为周期性变化时的流动与换热情况。
The morphologies, choice of materials, processing conditions and functional properties of polymer blend alloys with laminar dispersed phase were summarized.
综述了层状分散形态聚合物合金的形态特征、材料选择、成型加工条件，以及层状分散形态聚合物的功能性。
Based on the theoretical analysis and the experiments on two-phase flow in laboratory, some rules of the distributions of the porosity in two-phase gas bubble flow and the velocity under laminar flow and turbulent flow conditions are obtained.
本文根据理论分析和气液两相流的室内实验，得出了气液两相气泡流的空隙率分布以及在层流条件下和紊流条件下的速度分布规律。