在天然气流量测量中常常遇到脉动流的干扰。
The interference of pulsating flow is usually meeting in natural gas flow measurement.
文中提到了对这种瓣型的定常流和脉动流试验。
Results of steady flow and pulsed flow tests are shown as well as the experimental apparatus used.
本文首先讨论脉动流的撞击液压问题解的可微性。
The differentiability of the solution of impulsive flow in a hydraulic pipe due to impact are discussed.
研究脉动流条件下涡街信号的模型，提出频率测量的新方法。
A model of vortex signal in the state of pulsing flow is studied, and a new frequency measuring technique is proposed.
研制了直线电机及其功率驱动器，作为细胞脉动流实验驱动源。
We developed a line motor and its power amplifier, which acted as the driving mode of the cell pulsatile flow experiment.
发现共混物的相容性与正弦脉动流场的频率、振幅呈现一定的响应规律。
It was found that the blending system's compatibility responded to the sine pulsating flow field's frequency and vibration amplitude with certain regulation.
本文通过求解灾变磁场作用下刚性直圆管脉动流的运动方程，得到了它的分析解。
In this paper, the analytic solution of the dynamical equation of the pulsatile flow in a rigid round tube under the low-frequency varying magnetic field is obtained.
在此基础上将该方法成功应用于脉动流场下轴对称三维正弦波壁圆管内的质量传递测量。
The successful application of this method in a three-dimensional sinusoidal wavy-walled tube for pulsatile flow shows its validity.
本文考虑了血液的菲牛顿流动特性，对血液在动脉管系中的脉动流建立了准二维流动模型。
In this paper a quasi-two-dimensional model of pulse flow in arterial pipe system is established, and non-Newton characteristic of the blood is considered.
对正常肺动脉及肺动脉闭锁并各种心外管道重建RVOT模型的脉动流场进行定性和定量研究。
Both qualitative and quantitative pulsatile studies were employed on models of normal pulmonary and pulmonary artery atresia with RVOT reconstruction using various extracardiac conduits.
用数值方法分析了各种参数共振的响应曲线，其存在区域以及响应频率与脉动流频率之间的关系。
The amplitude frequency response curves and their frequency properties of the parametric resonances are investigated by using the method of numerical analysis.
我们利用计算流体动力学的方法，分析了定常流与脉动流两种条件下，支架植入引起的血管壁面剪应力的变化。
We used computational fluid dynamics(CFD) to investigate the steady and pulsatile flows in the vicinity of model stents and focused on the changes of wall shear stress caused by the implanted stents.
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.
通过对描述沙粒垂向运动速度脉动分量的随机微分方程的直接求解，获得了风沙流中沙粒运动的随机轨迹。
Stochastic sand trajectories in wind-blown sand were obtained by solving the differential equation which describes the vertical fluctuating velocity of sand grains.
深部含水系统水文过程线的波动在很大程度上记录了岩石圈的流脉动及一些地质过程的定向变化。
The fluctuation of hydrograph in deep wells records the fluid pulsation in the lithosphere and variation of the Earth's crust.
在超声速或高超声速绕流中，一种很严重的脉动压力环境是由激波边界层相互作用引起的激波振荡。
One of the more severe fluctuating pressure environments encountered in supersonic or hypersonic flows is the shock wave oscillation driven by interaction of a shock wave with boundary layer.
水管路系统流体压力脉动及其引起的流噪声会降低管路系统自身工作的可靠性和舰船的隐蔽性。
The fluid pressure pulse and flow-noise in water piping system decreased the operation safety of piping system and hiding ability of submarines.
结合工业机器人或自动喷嘴驱动程序，它可以在不产生脉动的情况下使密封剂胶珠连续均匀地流成一条线。
In combination with an industrial robot or automatic nozzle driver, it allows linear application of a consistent bead of sealant without pulsing.
本文应用自适应最小二乘格型（LSL）算法估计非恒定流压力脉动的功率谱密度。
This paper uses the adaptive least squares lattice algorithm (LSL) to calculate the spectral estimation of pressure fluctuations in unsteady flow, and describes the principle of the LSL algorithm.
通过对气泡在流场中的运动和受力分析，给出了用以封闭模型的粘性应力、脉动应力、相间动量交换项的表达式。
Analysis of bubble motion in the flow field was used to develop relations for the viscous stresses, turbulent stresses, and interfacial momentum exchange to close the model.
在对量测技术进行研究和改进的基础上，对不同流态区清水和浑水脉动压力进行了系统的对比观测。
In a conceptual model, fluctuating pressure of clear water and muddy water is measured with improved measuring techniques.
水管路系统的压力脉动及其引起的流噪声大大降低了舰船的隐蔽性，管内压力脉动也会降低管路系统自身工作的可靠性。
The fluid pressure pulsation in water piping system reduces Marine hiding ability significantly, even leads to deterioration in operation security of the piping system.
对正弦脉动气体流中涡轮流量计的测量误差进行了理论和实验研究。
The measurement errors of the turbine flowmeter under pulsating gas flow are studied, both in theory and experiment.
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.
针对脉动喷嘴的结构对形成脉冲流体的机理进行了电路模拟分析，从而避开了直接对流体流场的计算及边界条件的处理。
The pulse fluid mechanism is analyzed with circuit simulation on the basis of the structure of pulse nozzle. which will directly avoid calculating the fluid yard and treating the boundary conditions.
通过减小腔内回流比例、增大正反方向流阻差，提高泵液效率与输出泵压、减小输出脉动。
By reducing the reverse flow in chamber and by increasing resistance difference of back-and-forth flow, higher efficiency, higher pressure and less output fluctuation could be expected.
电渗泵是一种液流驱动泵，具有装置简单、载流无脉动、流量范围大和驱动电压适中等优点。
Electroosmotic pump is a liquid driving apparatus, which has its advantages of simplified equipment, non pulsing flow rate, large flow range and moderate working voltage etc.
在自然循环水回路上进行了两相流密度波不稳定性的实验研究，得到了不同工况下的实时脉动曲线。
This paper describes the experimental study of two phase density wave oscillation in natural circulation loop. The oscillation curves under different conditions are obtained.
在自然循环水回路上进行了两相流密度波不稳定性的实验研究，得到了不同工况下的实时脉动曲线。
This paper describes the experimental study of two phase density wave oscillation in natural circulation loop. The oscillation curves under different conditions are obtained.
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