速度梯度

该公式体现了速度梯度G在混凝过程中的变化。

The variation of the velocity gradient G in the process of coagulation was expressed in the said formula .

火焰面上的速度梯度主要影响黄色火焰厚度，蓝色火焰随着速度梯度的增加而减小，NOx生成也随之较少。

The velocity gradient in flame surface mainly influenced the thickness of yellow layer while the blue layer and NOx formation decreased with the increase of velocity gradient .

超声速流体Kelvin-Helmholtz不稳定性速度梯度效应研究

Velocity gradient in Kelvin-Helmholtz instability for supersonic fluid

冲击射流近壁处存在着回流现象，由于边界层流动和近壁回流引起距离固壁2D内的速度梯度变化较大。

From the distribution of velocity , a great velocity gradient can be seen in the zone with 2 D distance to the wall . The phenomenon was due to the boundary flow and reverse flow near the wall .

统计结果显示，当流场进入自相似状态后，以流场速度梯度二阶不变量Q为自变量的颗粒数的概率分布函数也呈现出与颗粒尺寸和时间发展无关的自相似特性。

The statistical results show that the probability distribution of particle number , which is a function of the second invariant of velocity gradient tensor Q , becomes self-similar , i. e. size-independent and time-independent when the flows reach self-similar status .

分析了混凝动力学几个公式，就公式中的每个因子展开讨论，认为：这几个公式的缺陷是速度梯度G在公式中没有体现混凝规律，并提出一个补充公式。

With the analysis of formulas of coagulation kinetics and the discussion on every genes in the formulas , it is believed that : these formulas deficiency , for coagulation regulation of velocity gradient G was not expressed , so a complementary formula was proposed .

CGT区域内雷诺应力与平均速度梯度呈非线性关系。

In the CGT region , the relation between turbulent Reynolds stress and mean velocity gradient is nonlinear .

鉴于传统PIV算法存在的分辨率和精度问题，本文发展了一种基于粒子成像相关特性的PTV算法，大幅度提高了PIV测量方法的空间分辨率与测量精度，尤其是在速度梯度比较大的流场中。

Considering the confinement of traditional PIV algorithm , a new PTV algorithm based on correlation was developed and realized , which can improve the spatial resolution and accuracy , especially in measurement of flow with high velocity gradient .

反演结果表明，石岛地震台下方地壳分为3层：约5km以上有一速度梯度带，S波速度从1.5km/s逐渐增加到3.5km/s，其间有若干小的分层；

The result indicates that the crust can be divided into three layers : above 5 km where there is a gradient zone including several small layers , in which shear wave velocity increases from 1.5 to 3.5 km / s gradually ;

目的探讨心脏左室长轴及短轴方向舒张早期心肌速度梯度（MVGe）评价高血压左室舒张功能的价值。

Objective To analyze the value of peak myocardial velocity gradient ( MVGe ) in early diastole on both longitudinal and radial axis in evaluating left ventricular diastolic function in hypertension patients .

第2层（埋深约在3~17km）为上地壳，其顶部速度梯度约为0.1s-1，下部速度横向变化较大且存在低速块体；

The second layer ( about 3 ~ 17 km ) is the upper crust with a velocity gradient about 0.1 s ~ ( - 1 ) at top and relative large lateral velocity variation as well as lower velocity blocks at bottom .

边界速度梯度理论在火孔设计中的应用

Application of theory of boundary velocity gradient in design of orifice

电化学法测量壁面处的湍流速度梯度

Measurement of turbulent velocity gradient on the wall with electrochemical technique

常速度梯度射线追踪与二维层速度反演

Ray tracing with constant velocity gradient and inversion of 2-D interval velocity

陆区的一些主要断裂带几乎都显示在速度梯度带上.3.110km深度处的速度图像表明，华南海域普遍显示低速；

Some main fault zones almost show on the velocity gradient zones .

超声检测心内外膜下跨壁速度梯度在心肌缺血诊断中的应用

Application of myocardial velocity gradient in diagnosis of myocardial ischemia

平均速度梯度对湍流结构的影响

The effects of mean strain on the structure of turbulence

溶液对流在皮肤表面产生的速度梯度可能产生体积流。

The velocity grads on surface of skin might generate volume flow .

心肌速度梯度评价原发性高血压左室舒张功能

Myocardial Velocity Gradient Evaluation of Left Ventricular Diastolic Function in Hypertension Patients

三元流场中速度梯度方程的分析

The analysis of velocity gradient equation in three dimensional flow

半圆电极对测量壁面处的湍流速度梯度脉动

Employing Semicircular Electrode Pair to Measure Fluctuations of Velocity Gradients on the Wall

含有速度梯度的地壳模型在合成地震截面上的一些特征

Some features on synthetic seismogram section by a crustal model with velocity gradient

常数速度梯度时均匀湍流的二元速度关联函数

The Double Velocity Correlation Function of Homogeneous Turbulence with Constant Mean Velocity Gradient

凸包型非光滑单元体周围同样可以形成较稳定的速度梯度。

Convex hull Non-smooth unit cell also can form a stable velocity gradient .

对头碰离子束的密度梯度和速度梯度对电磁不稳定性的影响碰撞等离子体的电磁不稳定性

Effects of density and velocity gradients of two head-on colliding ION-BEAMS ON ELECTROMAGNETIC INSTABILITIES

速度梯度、近壁效应和Re数对压力探针测量误差的影响

Effects of velocity gradient , wall-proximity and Reynolds number on measuring errors of pressure probes

下地壳有较大的速度梯度（接近0.1秒~（-1））；

The lower crust is of large velocity gradient ( close to 0.1 s-1 ) .

当这种混合的交织状态过渡到热机械影响区时可以发现，随着速度梯度的变化，混合的均匀程度明显减弱。

With the decreased speed gradient , the mixed-degree was obviously lowered near heat-affected zone .

讨论了温度、压力、速度梯度对保护储效果的影响。

The influence of temperature , pressure and shear rate on formation damage are also discussed .

认为介质中垂直速度梯度的存在是地震波振幅衰减的原因之一。

Amplitude attenuation of seismic wave can be ascribed to the vertical velocity gradient in the medium .