In the cavity flow mode, the drag of the cylinder was dramatically reduced by the upstream rod.
当圆柱处于空穴流动模式时，其阻力可以大幅度降低。
The special characteristics of kinetic energy and momentum of horizontal rotary cavity flow in internal dissipating tunnel with an inlet shaft are analyzed.
研究了水平旋转内消能泄水道空腔环流特有的能动量特性。
The variation rule of wall stress of horizontal rotary cavity flow in an intemal energy dissipating tunnel is researched based on the experimental observation.
通过对典型的水平旋转内消能泄洪洞空腔环流的试验观测，研究了其壁面应力的变化规律。
Based on panel method, the mathematic model of partial-cavity flow field for axisymmetric body is given by use of the sources of distributing on the bodies and cavity surfaces.
基于面元法，通过在回转体和空泡表面分布源汇的方法，建立了求解轴对称回转体局部空泡流场的数学模型。
Furthermore, the research results of driven cavity flows were applied to the analysis of flow characteristics around the vehicle-bridge system considering the wind-break wall effect.
根据高速铁路桥梁带挡风墙的特点，引入空腔流动研究成果对车桥系统的绕流特性进行了理论分析。
If oil got into the production pipe from the bottom, then barriers that would have impeded its flow up the cavity around that pipe would have made little difference.
如果油流从油井底部进入到生产管线内，这个环绕在生产管线外部的阻隔体对阻止油流上升能起多大作用呢，两者的差异将会非常小。
Inversions can help clear the upper respiratory tract and drain secretions from the nose, allowing freshly oxygenated blood to flow into the oral cavity.
倒置体式能清理上呼吸道，排出鼻腔内的分泌物，让新鲜富氧的血液循环到口腔。
It is shown that the spring flow model founded is preferably fitting and stability for the case of the Black Dragon Cavity by calculating, fitting and analyzing.
且以黑龙洞泉为例，通过计算、拟合、分析，说明建立的泉流量模型具有较好拟合性和稳定性。
The paper analyses the action method, disturbance wave property and excitation condition of hydraulic independent excitation and theoretical model of fluid flow property in resonance cavity.
对水力它激的作用方式、扰动波特性、激励条件和共振腔内流体流动特性理论模型进行了较全面的理论分析。
They are the cavity radiometer and the water flow power meter for laser power measurement, the cone calorimeter and the volume-absorbing calorimeter for laser energy measurement.
有测量激光功率的空腔型辐射计和流水式功率计、测量激光能量的锥型能量计和体吸收型能量计。
The results showed that the present calculation is satisfactory. The basic characteristics of flow and heat transfer inside this rotating disc cavity were revealed.
与实验结果的对比表明本文的计算方法是合理的，计算结果揭示了该型盘腔结构的流动传热基本特征和规律。
The flow induced oscillation in a cavity exposed to external high speed flow and its suppression by means of sound excitation at the leading edge of the cavity are experimentally studied.
实验研究了矩形空腔在外部高速气流作用下诱导的空腔内流动振荡问题，以及从空腔前缘加入纯音声激励以抑制空腔内流动振荡的技术。
An injection die with a mold cavity was designed though using the injection mold CAE software MOLDFLOW to simulate plastic flow and choosing the molding parameters of polypropylene.
通过用注塑模CAE软件MOLDFLOW对塑件进行模流分析，选择聚丙烯的成型工艺参数，设计了一模一腔的注射模具。
The basic flow field structure and aerodynamic features of the impeller backside cavity are presented for the coupled computations of a centrifugal compressor and its impeller backside cavity.
通过对离心压气机与轮盘空腔耦合流场的计算分析，得到了轮盘空腔流动的基本流场结构和动力特性。
In the experiment it is found that at a certain external flow velocity and cavity size a strongly self sustained flow oscillation in the cavity would appear.
实验发现，在一定的气流速度和空腔几何尺寸下，空腔内流动会出现强烈的自持振荡。
Finally, by using this new method, flow in a 2-d lid driven cavity, flow around a circular cylinder, and flow simulation around NACA0012 airfoil with different Reynolds Numbers are performed.
最后，针对二维驱动空腔流、圆柱绕流及二维naca0012翼型在不同雷诺数的条件下，用新提出的方法进行了数值模拟。
Analysis of numerical simulation is used on flow field and temperature field in mechanical seal cavity.
对机械密封腔内流场和温度场进行了数值模拟。
In the cavity, the whirl flow was very slow.
舒张期呈反向低速血流，而腔内旋转血流流速常较低。
One of them is the sound standing wave resonance of fluid in cavity, the frequencies of which are invariable as velocity of flow is increasing.
经过分析，发现突出试验段壁上的流线型腔与突出的矩形腔在气流中被激振荡相似，存在着其频率与流速无关的腔中液体声共振谱峰；
Based on stress and cavity relationship of particles in gas-solid two phase flow field, quantitative correlation of pressure and density of pyrotechnic charges was deduced.
利用气固两相流颗粒间应力与空隙率之间的定量关系，推导了火工药剂压药压力与装药密度之间的定量关系。
The component defines at least part of an alloy flow path for the flow of aluminium alloy from a pressurized source of substantially molten aluminium alloy of the machine to the die cavity.
该组件定义至少一个用于铝合金从大量的机器铝合金熔体压力的来源流向型腔合金流动路径的一部分。
The flow structure displayed a reverse jet current in the lateral cavity and white corrosion on the lateral enlargement surface.
试验细部结构特征，发现侧空腔内的反射回漩流和突扩弧形面上的白色蚀带。
A very special rotating cavity with micro-turbine (de-swirl nozzles) was applied to investigate the flow characteristics inside the cavity under three mid rotating speeds.
通过实验对中等转速下带有微型涡轮(反预旋喷嘴)的旋转涡轮盘腔内流动特性进行了系统研究。
For the same cavity, residence time reduces obviously in the combustion flow as compared with that in the cold flow.
相同结构的凹腔，在燃烧流条件下的驻留时间相对于冷流条件明显减小。
Large Windows in the basket both above and below the spider reduce sound reflection, air flow noise and cavity resonance to a minimum.
合金盆架上较大的镂空设计使回声、气流噪声和空腔谐振等降低到最低水平。
After each gas gap and then a larger cavity, a flow by reducing expenditure on the role and expansion, loss of energy due to the vortex, the gas pressure drop in both volume and velocity increase.
气体每经过一次间隙和随后的较大空腔，气流就受到一次节流和扩容作用，由于旋涡损失了能量，气体压力不断下降，比容及流速均增大。
Flowing capability is big and the flow resistance is little. When the valve opening, the valve core is located inside ball cavity and the flow route is straight tube.
流通能力大、流阻小。这是因为开启后阀芯位于藏球室内，阀体流道呈直筒式。
Ventilation of starting rotation device ventilation pipe is from Axial flow of swirl hole inner surface takes air leads to vacuum cavity, model existence of scale effect.
起旋室通气井通风系由旋流洞内表面轴向水流“挟带”空气而致空腔内气体压强减小进入，模型存在缩尺效应。
The speed of the gas flow in the reaction cavity can be lead to be equalized so as to not only protect cavity walls but also equally distribute the gas in the cavity.
使反应腔室内的气体流速趋于均匀化，既能使腔室壁得到保护、又能使腔室内的气体 分布均匀。
When the valve is fully open, flow capacity is big, pressure loss is small, and the medium would not deposit in the body cavity.
全开时阀门流通量能力大，压力损失小，且介质不会沉积在阀体中腔。
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