The viscosity of the fluid has no direct effect on the velocity profile .
流体的粘度对速度场没有直接影响。
The velocity profile in vertical section, cross section and side section is given.
画出了涡流室纵截面、横截面和侧截面上的速度矢量图。
It is difficult to simulate a velocity profile with the traditional least square method.
传统的最小二乘法拟合流速剖面存在一定的困难。
In the hydrographic practice, the real depth may be more than the depth of sound velocity profile.
在实施声速剖面测量时,由于某些原因可能存在实际水深大于声速剖面深度的情况。
The velocity profile and residence time distribution in cold model of Texacogasifier were measured.
测定了德士古气化炉的冷态速度分布和停留时间分布。
A semitheoretical modeling to calculate pressure drop and exponent of vortex velocity profile is deduced.
建立了计算旋风分离器压降及速度分布指数的通用计算式。
An example shows that using this method can obtain a uniform velocity profile across the die and minimize pressure drop.
通过算例表明,应用该法进行口模优化设计可以减小压力降和口模出口速率变化率。
Result Asymmetric inlet velocity profile deflexion could increase the area of low shear stress and the gradient of shear stress.
结论不对称入口速度剖面可能是诱发动脉粥样硬化发生的一个危险因子。
A smooth velocity profile is obtained by the connection of the S-shape for the trajectory and the curvature based on the corner.
将拐角前后的S加减速和拐角区域内速度连接后,得到了平滑的速度曲线。
The computed result shows that this new method can not only predict the pressure gradient but can also give the velocity profile.
计算结果表明,这种新方法不但能估计压力梯度,而且还能给出浆体速度分布。
To receive extruded product with high quality, it is necessary to know the arrangement of the velocity profile at the outlet of die.
为了获得高质量的挤压制品,对模具出口区域速度分布的研究是必须的。
Objective: To evaluate color Doppler velocity profile technology (CDVP) in the diagnosis of the venous reflux disease of lower limbs.
目的:评价彩色多普勒流速剖面图技术在下肢静脉倒流性疾病诊断中的作用。
For dust devils, the tangential velocity profile behaves like Rankine vortex, so it could be regarded as a kind of Rankine-like vortex.
尘卷风是一种类兰金涡,旋转速度和压力的分布具有兰金组合涡的特点;
For the flow of a jet or a wake, we may consider a flow field without solid boundary but with a point of inflection in the velocity profile.
射流或尾流可视为无固壁边界而流场速度剖面具有拐点的流动。
The dimensionless velocity-profile formula fits not only the depth average velocity profile but also velocity profile of each layer along depth.
利用速度剖面公式计算的垂线平均流速场与实测值符合较好。
The influences of applied magnetic field. inlet velocity profile, initial surface disturbance and surface tension on interface shape were analyzed.
通过对方程的数值求解,研究了外加磁场强度、进口速度分布、初始表面扰动对界面形状和界面张力的影响。
The results indicate that a sphere near the entrance which has a uniform entrance velocity profile will suffer larger drag than that in an infinite tube.
结果表明,当圆球在入口处运动时会遭受到较无穷圆管内为大的阻力。
A modified Lagrangian analysis was adopted to study the dynamic mechanical behavior of rate-dependent materials based on particle velocity profile measurement.
采用改进的基于质点速度波形测量的拉格朗日分析方法,研究了率型材料的动态力学性能。
Using wind velocity profile law determinate the aerodynamic roughness length of wheats different growth periods: the average roughness of shooting period, is 6.
利用风速廓线法测定小麦不同生长期的空气动力学粗糙度:青苗期的平均粗糙度最大,为6。
The results show that the streamwise mean velocity profile of particles takes on a Gauss distribution, and the lateral mean velocity profiles assumes a Sine distribution.
结果显示,颗粒的流向平均速度剖面呈高斯分布,而横向平均速度剖面则呈正弦分布。
Both qualitative analysis to the changing trend of droplet axial velocity profile and quantitative comparison with experimental data demonstrate the rationality of this model.
计算与实验结果表明:无论是从液滴轴向速度分布变化趋势的定性分析,还是从与实验数据的定量比较来看,建立的模型都是合理的。
Combined with the calibration method, two methods for the sound ray bending correction in deep sea are developed when the sound velocity profile is known and unknown separately.
文中结合海底应答器位置校准方法,分别就声速分布已知和未知两种条件开发了深海声线弯曲修正方法。
The new model can also be used to predict the effects of inlet velocity profile and meter geometry on the meter's performance, and thereby improves the design of turbine flowmeters.
利用本文的研究结果还可预测仪表几何参数与来流速度分布对涡轮流量计性能的影响,作为改进仪表设计的理论依据。
The effects of various factors, such as top pre-tension, inner fluid density, current velocity profile, outer diameter and riser wall thickness on VIV-induced fatigue damage in the …
结果显示立管顶部预张力、管外流速分布、立管外径对疲劳损伤的影响非常明显,而管内流体密度和立管壁厚因其变化范围有限,对疲劳损伤的影响没有上述三个参数显著。
The new model can alto be used to predict the effects of inlet velocity profile and meter geometry on the meter's performance, and thereby improve the design of the turbine flowmeter.
利用本文的研究结果还可预测仪表几何参数和来流速度分布等因素对涡轮流量计性能的影响,作为改进仪表设计的理论依据。
An analytical expression of dissipation integral for kinetic energy integral equation is derived by two-layer eddy viscosity turbulence model and the power law of the velocity profile.
采用两层涡粘性模型和速度剖面的指数律导出机械能方程的耗散积分解析表示式。
In view of the velocity profile characters of the swirl jet and the response of the inclined single wire probe perpendicular to the main flow, the optimized data process is introduced.
针对射流流场的速度特征及单丝斜热线对垂直支杆来流的响应特性,提出了测量数据优化处理方法。
Mean velocity profile, turbulence intensity profile, integral scale and wind spectra are the most fundamental characteristics that describe the atmospheric turbulent boundary layer flow.
平均速度剖面,湍流度剖面,积分尺度和风谱是反映大气湍流边界层流动的四个最基本的因素。
According to the approximation of the velocity profile of turbulent flow in cylindrical pipes, flow rate measurement based upon the maximum velocity of circular cross-section is proposed.
根据已知圆管紊流流速分布的近似模地,研究了使用管道轴线处的最大流速测量流量的方法。
According to the approximation of the velocity profile of turbulent flow in cylindrical pipes, flow rate measurement based upon the maximum velocity of circular cross-section is proposed.
根据已知圆管紊流流速分布的近似模地,研究了使用管道轴线处的最大流速测量流量的方法。
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