The characteristics of vortex field can be described visually by vortex line.
涡量场特性可以用涡线非常形象地表达出来。
In this paper the motion of a straight vortex line in a water tunnel having a square cross section is discussed.
本文讨论了正方形截面水筒中直线涡的运动。
A twisted vortex line model is established based on physical analysis and is found in conformity with the experiment.
根据实验观测和分析，建立了计算扭曲涡迹的数学模型。
In this paper the motion of a straight vortex line in a water tunnel, which has a square cross section, is discussed.
本文讨论了正方形截面水筒中直线涡的运动。
Both lift line model and generalized wake model are founded in this paper. A method is given for calculating induced velocities by a wake vortex line which results in a rapid convergence.
建立了旋翼升力线模型和广义尾迹模型，在计算角迹涡线诱导速度时，采用了快速收效方法。
The head of the line catches the tail, and the chain spins into a vortex.
该捕食链的头捕捉尾巴，链到一个漩涡旋转。
A wind turbine aerodynamics simulation module based on non-linear vortex-line theory is tested in the numerical aspect in this paper.
对基于非线性涡流线原理的风力机空气动力学模型进行了数值试验。
On line instruments, such as turbine meter, vortex meter and positive displacement meter are usually used for crude oil metering in oil fields.
计量分离器中常用涡轮流量计、涡街流量计或齿轮流量计等在线式仪表计量原油产量。
Vortex air compressor is made up of two double function equation type line dynamic and static vortex plate mesh with each other and become.
涡旋空气压缩机是由两个双函数方程型线的动、静涡盘相互啮合而成。
The results showed that there was a mesoscale vortex tube along the mesoscale shear line on the middle low troposphere, and its altitude varied in a wave shape.
发现沿切变线走向有一条中尺度涡管，位于对流层中低层，高度呈波状起伏。
The forming and maintaining of K-H instability was an important reason of causing vortex on the shear line maintain, strengthen, and causing rainstorm.
不稳定的形成和维持，是导致中尺度切变线上小尺度涡旋维持、加强，并产生强风暴雨的重要原因。
The vortex shedding characteristics of tube bundles in line arrangement subjected to gas liquid two phase cross flow were investigated experimentally.
对受气液两相流横向冲刷的顺列管束旋涡脱离特性进行了实验研究。
The following conclusions can be drawn. 1. The main influence systems of causing this heavy rainfall are southwest vortex, shear line and southwest low-level jet.
低涡切变线、西南风低空急流、东风气流和地面倒槽是本次暴雨的主要影响系统，该地区维持高能，饱和，位势不稳定的小环境，有利于特大暴雨的产生和维持。
A robust iterative method suitable for the numerical simulation of vortex flows at high angles-of-attack is established based upon the multiple line-vortex model (MLVM).
基于多重线涡模型（MLVM），本文建立了一种计算机时少、收敛性强的适用于大迎角涡流势流数值模拟的迭代算法。
The heavy rainfall is dominated by a mesoscale warm shear line, having a closed relationship with a mesoscale system composed by mesoscale shear line, thunderstorm high and mesoscale vortex;
这次强降水与中尺度切变线、雷暴高压和中尺度气旋等中尺度系统关系密切，为一次中尺度暖式切变线暴雨过程；
The adjustable eccentric weight can drive to the Central Line of main shaft through motor. Under the unstable state, it produces centrifugal force that makes raw material form vortex in the sieve.
可调节的偏心重锤经马达驱动传达到主轴中心线，在不平稳状态下，产生离心力，使物料强度改变在筛内形成轨道旋涡。
When waves act on a vertical cylinder, there are in-line and lift forces. They are caused by the viscous effect, which induces the surface frictional force and flow separation and vortex shedding.
通常将垂直柱体在波浪场中的受力分为正向力(顺流力)与升力，它们是由干粘性流绕钝体产生的摩擦阻力和由于水流绕柱分离产生涡漩而形成柱表面压力分布的不均匀变化而造成的。
When waves act on a vertical cylinder, there are in-line and lift forces. They are caused by the viscous effect, which induces the surface frictional force and flow separation and vortex shedding.
通常将垂直柱体在波浪场中的受力分为正向力(顺流力)与升力，它们是由干粘性流绕钝体产生的摩擦阻力和由于水流绕柱分离产生涡漩而形成柱表面压力分布的不均匀变化而造成的。
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