vortex field

The flow field in S_1 flow face of cascade was tested by using the particle image velocity (PIV) technology, velocity field and vortex field inside cascade were obtained.

对三种高环流系数叶片叶型和五种相对节距的涡轮叶栅进行内流场试验研究,在研究中采用粒子成像测试技术(PIV),获得叶栅内S1m流面的全流场流动信息,并采用拓扑图论原理经计算机进行图像处理,获得S1m流面的速度矢量场和旋度场。

The fields of geopotential height,anomalous change of high-level jet-stream,helicity,divergence and stratification conditions as the circulation dynamical structure in course of the sand-dust storm occurrence in southern Xinjiang in spring of 2003 are analyzed based on observed data and T213 data.

2003年4月8日至9日发生了一次超极地冷空气入侵新疆并翻越天山造成南疆盆地大范围强沙尘暴过程,分析沙尘暴强盛期的高度场、高空急流异变、螺旋度场、散度场和不稳定发展,揭示了该类沙尘暴强盛期的环流动力结构。

Building of the operation rules of curl and divergence for vector field in R 3 space;

R~3中矢量场散度和旋度运算关系的建立方法

Analysing by mathematics and the concepts of flux and curl , we can get the differential form of gauss s theorems in electrostatic field and ampere s cycle theorem in electrostatic field.

电动力学中的内容一般是从电磁学最基本的实验规律出发,由静电场中的库仑定律得到静电场的高斯定理和环路定理,利用通量与散度、环流与旋度的关系,得到静电场的高斯定理和坏路定理的微分形式。

The results of divergence and curl calculation on the electric field intensity variable and magnetic induction variable of the motional electromagnetic field have shown that almost all the classical Maxwell s equations of time-varying electromagnetics theory can be deduced from the Maxwell s equations of moving electromagnetic field in some special conditions.

对运动电磁场的电场强度变量和磁感应强度变量做旋度及散度运算分析 ,表明除电位移变量项与经典Maxwell方程组的正负号不同外 ,大多数时变电磁场理论下的Maxwell方程都可以在一定条件下从运动电磁场的Maxwell方程组中导出。

This paper points out the defect of the origin of the term "rotation" in field theory and suggests an improvment.

本文指出了场论中旋度这一名称由来的缺陷,并作了改进,同时提出了研究奇点旋度的重要性及奇点旋度的算法。

The paper gives a proof for the fundamental theorem of algebra from the theorem of rotation of continuos field in R~2.

用R2上连续向量场旋度理论来证明代数基本定理。

According to the definitions of grads, divergence and rotation, the expression in spherical coordinate system is given from the point of physics.

据梯度、散度、旋度的定义,用物理的方法给出了在球坐标系中的表达式;此方法也可以推广到其它的正交曲面坐标系中。

The relevant relationship between them and gradient,divergence,curl of three coordinate place is pointed out.

对微分的外乘积、外微分形式做了初步的介绍 ,运用它同三维空间的梯度、旋度、散度相对应。

Objective:To explore the relation between specific rotation and purity of sorbitol.

目的 :探讨山梨醇的比旋度与纯度的关系。

Based on their distinctive optical properties, a method of determining the specific rotation was set up to distinguish these two kinds of chemical materials in the standard for detection of levogyrate preparati.

二者的差别在于盐酸噻咪唑为外消旋体 ,盐酸左旋咪唑为左旋体 ,通过利用两种物质的光学特性 ,在盐酸左旋咪唑制剂的检测标准中设立比旋度测定方法 ,从而将两种不同的物质加以区