小振幅的振动剪切流。
剪切流场中分散相颗粒的受力特性较普通重力式分离场复杂。
The suffering force characteristics of grains in the shearing field are more complicated than that in common gravity type separating field.
计算了剪切流场中阿尔文波的传播过程,以及磁层中阿尔文波的耗散。
The propagation process of the Alfven wave in a shear velocity field is calculated, and the dissipation of Alfven waves in the magnetosphere is given.
本文对撞击剪切流,即射流剪切层撞击顺流放置的平板的流动,进行了实验研究。
The experimental investigations were performed on the impinging shear flow that is comprised with a jet shear layer impinging a plate parallel to the jet.
利用理想磁流体力学模型对有轴向剪切流的Z箍缩等离子体不稳定性进行了分析。
A magnetohydrodynamic formulation is derived to investigate the mitigation effects of the sheared axial flow on the Rayleigh-Taylor (RT) instability in Z-pinch plasma.
总结了聚合物熔体在剪切流场壁面滑移研究的成果,提出了Z W模型的物理概念。
This paper sums the study results on wall slip of polymer melt in shear flow, which leads to the physical meaning of the developed Z-W model.
通过对简单的压力流和剪切流较精确的模拟,得出了流体在不同膜厚下的流动特性。
The flowing characteristics at different film thickness are gained by accurately simulating Poiseulle flow and Couette flow.
在重力式油水分离场中,剪切流场主要存在于各种聚结填料中和器壁的流动边界层内。
In the gravity type oil water separating field, the shearing field mainly exists in all kinds of collison packing and flow boundary of vessel.
当基态运动为剪切流(或较差旋转)时,这一性质将使不稳定波自动演化到准稳阶段。
When the motion of the basic state is the shear flow (or the differential rotation), this property means that the unstable waves would evolve automatically into the quasi-stationary stage.
我们还发现,含有较强快波分量的扰动可从磁层顶剪切流场中获得能量而得到线性放大。
We also find that the fluctuations with stronger fast mode oscillations can gain more energy from the background shear flow and get amplified as a result.
本研究采用浸入边界法模拟二维红细胞在线性剪切流中的形变,观测细胞的坦克履带式运动。
In this paper, the deformation of two-dimensional red blood cell in linear shear flow is simulated using the immersed boundary method to observe the tank-treading motion.
从简化的颗粒运动方程出发,分析了在剪切流场中颗粒脉动强度和流体脉动强度之间的关系。
The relationship between turbulent intensity of particles and those of the carrier fluid was studied theoretically based on simplified particle motion equation.
但对一些由剪切引起的流动,如平面平行剪切流,线性稳定性分析的结果与实验结果相差很大。
For other flows, notably those driven by shear forces, the predictions of eigenvalue analysis fail to match experiment, for example plane parallel shear flow.
基于此种实验研究框架,本文对轴对称自由剪切流、变密度轴对称射流以及圆柱尾迹进行了一定的研究。
The dynamics of axisymmetric free shear flows, axisymmetric variable-density jets and wakes of cylinders have been studied, to a certain extent, under this framework.
自由剪切流是一种典型的包含转捩和湍流的流动现象,而平面射流是一种比平面混合层复杂的自由剪切流。
The free shear layer is a typical flow phenomenon which includes transition and turbulence. The plane jet is a type of free shear flow more complicated than the plane mixing layer.
实验结果表明,在较高的雷诺数下翼型近尾迹流动是一种以旋涡的运动学和动力学特性为主导的湍流剪切流。
The experimental results indicate that the turbulent near wake flow is dominated by the dynamic and kinematic characteristics of vortices at relatively high Reynolds number.
基于剪切功率的耗散机理,提出了一种计算振动剪切流场中聚合物熔体动态黏度的粘性耗散法,并建立了理论模型。
Based on dissipation mechanism of shearing power, a new method of modeling dynamic viscosity of polymer melts in vibrating shear flows was proposed in this paper.
研究较全面分析了气体压缩性、液体粘性、表面张力效应、液气密度比以及滑移速度等重要因素对气体剪切流稳定性的影响。
The effects of parameters such as the gas compressibility, the liquid viscosity, surface tension, density ratio , and velocity ratio, have been considered.
经典成核理论假设气泡核的形成是在静态条件下发生的,它没有反映在口模流场中动态因素(拉伸、剪切等)对气泡成核的影响。
Because classical nucleation theory supposes that bubble formation is occurred under static state, it doesn't reflect the effects of dynamic factors on bubble nucleation, such as shear and elongation.
该矿床产于弧后扩张盆地的勉戈组流纹岩中,受韧性剪切带控制。
The deposit occurs in the rhyolite area of Miange Formation within the back_arc spreading basin and is controlled by a shearing belt.
断裂带在晚白垩世-早第三纪的伸展活动中,软流圈进行了强烈的上隆,岩石圈出现了显著的细颈化,属于纯剪切伸展模式。
During extensional activities of Late Cretaceo us to Eogene, intense upwelling of asthenosphere happened under the fault zone, leading to lithospheric necking in pure shear mode1.
结果表明,由于雷诺胁强的径向变化,托卡马克等离子体可以自发地产生剪切极向流。
The results indicate that the sheared poloidal flow can be generated in the plasmas due to radial variations in Reynolds stress.
结果表明,雷诺胁强的径向变化可以自发产生托卡马克等离子体的剪切极向流。
The results indicate that the sheared poloidal flow can be generated in tokamak plasma due to the radially varying Reynolds stress.
为了使加降凝剂的原油实现长距离的管输,就管流剪切速率进行了实验室模拟研究。
Laboratory simulating studies are made on shear rate of pipe flow for purpose of realizing long distance transportation of additive crude oil.
其次,从微观尺度下粒子的运动特征出发,利用统计分析的方法研究了环形剪切颗粒流的宏观动力学特性。
Secondly, based microscopic motions of particles inside granular system, we have analyzed the macroscopic mechanical features of annular shear granular flow using probability statistic method.
螺旋式罗茨泵在稳定过流剪切敏感介质压力脉动质量,减少噪音、振动,避免气蚀等方面有较大改善。
Helical Roots pump has great improvements on the face of stabilizing pressure pulse quality of passing cut sensitivity medium, reducing noises and vibration, avoiding vapor fret etc.
考察了其粘均相对分子质量、质量分数、温度及流态对减阻效率、抗剪切稳定性的影响;
The effects of PLMA′s relative molecular mass, content, temperature and flow state on the drag reduction effectiveness and the shear stability were discussed.
对新型高剪切均质机关键部分定转子间隙区、定子槽道区、转子槽道区的内部流场进行了理论分析。
Last, the flow fields of the key parts of the new-type high-shearing homogenizer, the clearance between stator and rotor, the troughs of stator and the troughs of rotor, were analyzed in theory.
实验观察到射流迎、背流剪切涡层卷起形成类开尔文涡列。
A kind of Kelvin type vortex formed by the roll up of the jet shear layer is observed in the experiment.
本文提出了微圆管内环状流凝结换热的分析模型,考虑了重力、汽液界面剪切力、表面张力以及界面凝结热阻的作用。
Considering gravity, interfacial shear stress, surface tension and interfacial thermal resistance, the analysis model for annular flow condensation heat transfer in microtube was presented.
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