用激光测速方法研究圆管流动的湍流间歇现象。
The turbulence intermitency in pipe transition flow is investigated experimentally by using laser Doppler velocimetry.
对横掠不同长径比的椭圆管的换热和流动特性进行了研究。
Heat transfer characteristics and flow behaviors of elliptic cylinders with different axis ratio kin crossflow are investigated experimentally.
局部狭窄圆管内的流体流动，在工程和生物医学中具有许多应用背景。
Fluid flow through tubes with local constriction has many applications in engineering and biomedical science.
本文利用数值计算方法，对圆管加热流动的热阻力和熵产进行了综合分析研究。
In this paper the thermal drag and entropy generation of a heated pipe flow are analysed by means of numerical computation.
在对空气-水在水平放置的圆管内流动时的两相压降实验的基础上，分析质量流速对两相压降的影响。
On the basis of experiment of two-phase pressure drop, for air-water flow through horizontal tube, the effect of mass velocity on the two-phase pressure drop is analyzed.
介绍一套测量水平圆管和短式旋风筒内流体流动特性的实验装置。
This article introduced an experimental device for measuring the fluid flow characteristics in the horizontal pipe and short swirling chamber.
采用切片法、相似度概念和热平衡以及进口温度检验法，对收集到的圆管垂直向上流动临界热流密度实验数据库进行了分析。
The world vertical upward flow round critical heat flux experimental database is analyzed based on the slice method, similarity measure, heat balance and inlet temperature verification.
研究了圆管反应器中四束侧向对撞射流与轴向流形成的混合流动。
A tube reactor mixed by an axial continuous flow and four side jets as the dispersed flow is studied.
从流体力学中的N - S方程出发，建立了圆管两相分层层流的流动数学模型。
Starting from N-S equations of fluid mechanics, the flow mathematical model of two-phase flow in pipe is established.
在适体坐标系中采用有限差分法对错排圆管管片式换热芯子的三维层流流动及其换热特性进行了研究。
Under the body-fitted coordinates, a study of three-dimensional laminar flow and heat exchange characteristics of staggered round tube bank fin is carried out through finite difference method.
将酸蚀蚓孔简化为单圆管模型，酸液流动反应物质平衡方程反应传质和扩散作用。
Acid flow and reaction in a wormhole was studied by modeling the wormhole as a cylinder and numerically solving the mass balance equation that describes acid transport by convection and diffusion.
采用有限差分法计算了微细圆管中的气体流动。
The gas flow in a circular microtube is studied by using the finite difference technique.
同时，讨论了明渠突扩流动和圆管突扩流动中存在的不止一个对称解问题，并就此问题未被重视的原因进行了初步分析。
And then, it is discussed that there are not only one symmetric solutions in the sudden-expansion flows of open channel and round pipe.
锻模锤击横断面使金属向内流动导致圆管或圆棒的外径变为锻模的形状。
The die hammers the diameter and causes the metal to flow inward causing the outer diameter of the tube or the rod to take the shape of the die.
对圆管和扁管内部流动进行了以熵产生为基础的热力学分析。
An entropy generation based thermodynamic analysis was conducted of the internal flows in circular and flat tubes.
本文研究了双极流体通过带有轴对称柔和狭窄的刚圆管时的流动特性。
In the paper, the flow characteristics of dipolar fluid through a rigid circular tube with an axisymmetric mild stenosis are studied.
然后用拟谱法求解PAM水溶液在圆管中流动，得到速度分布、应力分布，为三维模拟作准备。
Then it is used to solve the flow of PAM solution in a circular tube. The velocity and stress distributions obtained can be used for the three dimension numerical simulation in the future.
本文对未充满液体具有部分自由液面的圆管内的流动提出一种理论计算方法。
This paper proposes a theoretical method for calculating the flow within a circular pipe which is not filled up with fluid and thus has a partially free surface.
对光滑圆管与粗糙管内的湍流流动及传热边界层进行了分析，通过实验比较了三种不同肋高1。
The relationship between heat transfer performance and Reynolds number in three C-D tubes having different rib heights 1.
建立了摇摆条件下圆管内的层流流动模型，推导出无量纲化的速度表达式，得到摩擦阻力系数关系式。
The model of laminar flow in tubes in rolling motion is established. The dimensionless correlation of velocity is derived, and the correlation of frictional resistance coefficient is also obtained.
同时，对直圆管内宾汉流体屈服应力和塑性粘度对湍流流动的影响进行了探讨。
We performed numericai computations of Bingham fluid turbulent flow in a straight circular pipe. The conclusions are as …
其一是圆管层流（又称泊肖叶流动），得到其流量和沿管方向压力梯度之间的解析关系式。
One was the laminar flow in the pipe(also called the Poiseuille flow). The analytic form of the relationship between the flow rate and the pressure gradient along the pipeline was obtained.
计算了层流状态下扭曲椭圆管内的流动与换热情况。
Experimental research of heat transfer and flow friction properties in twisted tube heat exchanger;
通过管中心和其它管线的速度变化趋势，以及圆管径向的速度分布，描述了流场的整体流动特性，揭示了非牛顿流体管道流的速度过冲和振荡现象。
They can easy show the behaviors of the flow in the whole cube, reveal the phenomenon of locity overshooting and damping oscillation of the flow.
对比分析了在同等条件下微尺寸圆管和宏观尺寸圆管内流动的差别，得出微尺寸圆管内流动的优势。
Comparative analysis under the same conditions in the micro-tube and macro-size pipe flow differences, come to flow advantage of micro-size pipe.
圆管状间隙（S1）在放置在中空段内的管状电极与中空段的内周壁（14）之间形成，电镀液在该 间隙（S1）中流动。
A circular tube-like gap (S1) in which a plating liquid (17) flows is formed between the tubular electrode placed in the hollow section and an inner peripheral wall (14) of the hollow section.
开展了小圆管内纳米颗粒悬浮液对流换热及其表面改性影响的实验研究，揭示了流态、流体温度、管道尺寸对流动与对流换热规律的影响。
D. tubes, with the results showing the convective heat transfer characteristics depending on the laminar and turbulent flow regimes, tube sizes, and mean temperatures of the suspensions.
开展了小圆管内纳米颗粒悬浮液对流换热及其表面改性影响的实验研究，揭示了流态、流体温度、管道尺寸对流动与对流换热规律的影响。
D. tubes, with the results showing the convective heat transfer characteristics depending on the laminar and turbulent flow regimes, tube sizes, and mean temperatures of the suspensions.
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