由流体径向温度梯度引起的离心浮力对旋流强化传热效果有重要影响。
Centrifugal buoyancy arising from radial temperature gradient of fluid has a great influence on the enhanced heat transfer performance of swirling flow.
近壁对总压测量影响不大。速度梯度和近壁对测量误差的影响还与来流方向有关。
The effects of the velocity gradient and wall-proximity on the measuring errors are related to the flow direction.
同时还对7种压力梯度下沟槽表面流场进行模拟，研究了压力梯度对减阻效果的影响。
In addition, numerical simulations of turbulent flow over riblet surface are carried out in 7 kinds of pressure gradients. The effect of pressure gradient is analyzed.
破坏出现的主要位置应是钻头头部多喷嘴之间的区域、喷嘴本身及其周围区域和筋板及流道的逆压力梯度区。
Bit damage maybe occur on the area of bit wall around the nozzles, nozzles area and inverse pressure gradient area.
利用新梯度的特征，并结合惩罚函数方法，可以获得容量制约下的交通网络流的解。
The Newton method with the new gradient is combined with the interior penalty method to obtain the capacitated network flow solution.
给出一种结合梯度矢量流(GVF)及椭圆变形模板的椭圆提取新算法。
A new ellipse extraction algorithm based on the ellipse-special deformable templates and gradient vector flow (GVF) was proposed.
最后部分是离子温度梯度模驱动的环带流生长研究。
And the final is that the study on zonal flow driven by ion-temperature-gradient mode.
用五孔探针测试旋流式气力分级机流场时，分级机内存在的静压梯度会对测试产生影响。
The static pressure gradient in cyclone air classifier can have influence on the test and measurement for its flow fields by five-hole probe.
本文提出了迭代梯度矢量流参数变形模型(IGVF)。
In this thesis, a new deformable model called Iterative Gradient Vector Flow (IGVF) is developed.
雷诺协强的径向梯度驱动带状流抑制了湍流输运。
Zonal flows can be driven by the radial gradient of the Reynolds stress.
本文采用基于梯度的光流场计算方法。
结果表明：启动压力梯度、层间储容比、地层系数比的变化对段塞流试井解释结果有较大的影响。
The result shows that the change of gradient of kick-off pressure, the storage ratio and the ratio of formation coefficients have relatively big effect on the slug flow well test result.
实验结果表明，修正三梯度方法是强流脉冲电子束发射度测量的一种有效的手段。
The results show that the MTGM method is an effective way of emittance measurement for intense pulse electron beam.
低比转速泵的高扬程决定了叶片流道内逆压梯度比较高，这种压力分布使得水流易于在叶片表面脱流分离，这一现象甚至在泵的设计点也难以避免。
The high head produced by the impeller means high adverse pressure gradient within blade passage and because of this the flow often separates from the blade surfaces even at the design point.
给出了极限井底流压和产量拐点的求解方法，分析了启动压力梯度、流体性质等因素对低渗透油藏油井产能的影响。
The effects of reservoir fluid property in high and low pressure and the starting pressure gradient on the percolation laws were taken into account in this model.
对流动相组成、流率、柱温、梯度速率、pH值、盐浓度以及缓冲液浓度对容量因子(K')的影响分别进行了讨论。
The effects of mobile phase composition, flow rate, column temperature, gradient ramp, ph value, salt concentration, and buffer concentration on capacity factors (K ') were respectively discussed.
此外，直接积分法还可正确地计算外部流场速度分布。这是偶强梯度法不能完成的。
In addition, the present direct integral method can be used to evaluate the velocity distribution for external flow field correctly where the method of gradient cannot be used at all.
利用PLC的特殊功能模块技术，较好地实现了电子束流的上升梯度和下降梯度的方便调节。
Adopting PLC special function block technology, it is easy to realize to adjust up step or down step of electronic beam current.
根据人脸图像的边缘梯度图提出了一种新的基于梯度向量流场的眼睛特征提取方法。
According to features of edge gradient maps of face images, a new eye feature extraction algorithm based on gradient vector flow field was proposed.
利用微观尺度管流模型，结合普通稠油流变特征，提出了在考虑稠油流变性条件下微观启动压力梯度计算方法。
The calculation method of microcosmic starting pressure gradient is put forward based on the model of pipe flowing and rheological behaviour of conventional heavy oil.
人工干预使蛇模型只能用于半自动的图像分割，该文在梯度向量流(GVF)蛇模型的基础上提出一种基于流场节点与最小路径方法的全自动图像分割算法。
In this paper, on the basis of Gradient Vector flow (GVF) snakes, a fully automatic image segmentation algorithm based on the analysis of flow field and the minimal path method is proposed.
结果表明，燃烧室升压梯度对裂纹腔内对流燃烧流场、以及裂纹的开裂时间和开裂方式都有很大影响。
The results indicate that the chamber pressurization has strong effects on the convective burning in the crack, crack initiation and fracture patterns.
结果展示了流场、壁面剪切应力及其梯度等血流动力学的时空分布情况。
The results depicted the temporal and spatial distributions of hemodynamic variables such as flow patterns, wall shear stresses and wall shear stress gradients.
通过梯度矢量流模型迭代求解，解决道路凹陷位置逼近问题，最终实现道路提取。
At the same time, how to get the approximate road hollow position is solved to realize the road contour extraction by gradient vector flow model with iterative solution.
本文在考虑空位浓度对空位迁移能的影响和双空位效应的情况下，给出了体心立方金属中空位流与空位浓度梯度之间的定量关系。
The vacancy-concentration effect on the vacancy-migration-energy and the behaviour of divacancies were considered Using a formula derived for the vacancy current in BCC metals.
用速度梯度、压力梯度和环量梯度模拟大攻角尖前缘三角翼流场。
Velocity gradient, pressure gradient and circulation gradient are used to model the separated vortex flow field over a leading edge delta wing.
文章分析了与折冲流有关的因素，如压差、压力和流速梯度以及渥奇面参数，进而提出了修改方案，基本解决了该孔存在的折冲流问题。
The factors related to the oblique flow, such as pressure difference, pressure and velocity gradients and the parameter of Ogee surface are also analysed.
提出了一种基于梯度矢量流(GVF)的快速收敛骨架snake算法。
We presented a novel and fast convergent skeleton snake model based on gradient vector flow (GVF).
提出了一种基于梯度矢量流(GVF)的快速收敛骨架snake算法。
We presented a novel and fast convergent skeleton snake model based on gradient vector flow (GVF).
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