查询词典 vortex line

The scale and strength of passage vortex is also simulated in the flow filed incascade with straight and positively curved blade by using total 3D N-S solver.The results indicate that the passage vortex which is the main part of thesecondary flow can be limited in small-scale steady shape by using curved blade.

借助于全三维N-S方程的求解程序，对直叶片和弯叶片两种流场中的通道涡的尺度和强度进行了数值模拟，模拟结果表明，采用弯叶片可使对二次流起主要作用的通道涡限定在尺度较小的稳定形式上。

When the positive curving angle increases, the total losses of cascades increase, the outlet flow angles vary acutely along the spanwise, the intensity and size of outlet trailing vortex increase obviously, however the intensity and scale of outlet passage vortex vary slightly, secondary flow at both midspan and endwall increase and the total averaged kinetic energy of secondary flow increases..

随着叶片正弯曲角的增大：叶栅总损失增加；叶栅出口气流角沿叶高剧烈变化；叶栅出口尾缘涡的强度和尺度明显增大，而叶栅出口通道涡的强度和尺度变化都不大；叶栅中部和端部二次流均增强，总平均的二次流动能增大。

Through the details simulation calculation of typical operation conditions of turbine, some conclusions are showed: the design of the overflowing parts is appropriate; the flow in the draft tube is smooth in the optimal operation conditions, the rotation direction of the vortex band is reversed to the runner in the large flow, and the rotation direction of the vortex band is identical to the runner in the small flow.

通过对水轮机典型工况点的详细计算分析，可以看出：各过流部件的设计符合设计要求；同时在最优工况下，尾水管没有明显的偏心涡带，在大流量工况下，尾水管直锥段内有与旋转方向相反的涡带；在小流量工况下，尾水管直锥段内有与旋转方向相同的涡带。

In some species, the leading edge vortex spirals out towards the tip of the wing, while in others there appears to be no spanwise movement of the vortex.

在一些物种，前缘涡的螺旋出对小机翼，而在其他国家似乎没有展运动的旋涡。

This source term model helps to predict the velocity and vortex fields in consistent with a full gridded vane vortex, hut the grid number reduces by 65%.

源项模型可以得到与全网格数值模拟基本一致的诱导速度场和涡量场，而网格量减少了65%。

WIG craft ; wingtip vortex ; downwash angle ; induced drag ; numerical simulation ; ideal vortex model

地效飞行器；翼尖涡；下洗角；诱导阻力；数值模拟；理想涡模型

Flow disciplinarian of different PH indicator polymer solution and newtonianliquid in annulus line had been studied, and found speed distributing, vortex,streamline of annulus line, analytic flow field distributing in annulus and eccentricsituation and compared the results with prevenient schloar, some results different fromprevenient results are get, shch as the relation of average velocity and maxiumvelocity is not less with the viscosity exponent under the annular line, the fluid speedaffect the relation.

应用 PIV 分别研究了不同浓度的聚合物溶液以及牛顿流体在垂直环空管道中的流动规律，得到了环空管道中流体的速度分布情况、涡量情况、流线情况，分析了同心和偏心情况下环空管道内的流场分布规律，并与前人的计算结果进行了比较，得出了一些与以前不同的结论：同心情况下平均流速与最大流速的关系，并不是完全与粘性指数 n 值有关系，还与管道内流动的流动速度有关系，当速度较小时，两者的差别就小，速度大时，不符合这种规律。

According to evaluation of the thermal, hydraulic, environmental and mechanic characteristics and energy performance of building and VAV air-conditioning system, and evaluation of the control performance of local control loops using the simulator of VAV system, this paper presents five on-line supervisory control strategies for local control loops: on-line optimization of VAV supply air static pressure set-point, on-line optimization of AHU supply air temperature set-point, on-line optimization of on/off set of CAV sub-system, on-line optimization of outdoor air set-point and on-line optimization of chilled water secondary pump pressure set-point.

通过数字仿真器对建筑物及其变风量空调系统的热力、动力、环境和能耗等运行特性的模拟，以及对系统常规采用的下位机控制回路可控性和稳定性等控制特性的研究和分析，本文先从局部的角度开展了系统局部优化的研究。提出并在仿真器上分别实施了VAV送风静压设定的实时优化，AHU送风温度设定的实时优化，CAV子系统开／停的实时优化，新风量设定的实时优化以及二级泵冷媒水供水压差设定的实时优化。

Also, calculate the distance of a line, calculate the mid point of a line, calculate the mid point of an arc, convert radians to degrees and vice versa, send characters to the AutoCAD command prompt, add single and multiple-line text to a drawing, add a new layer, calculate the slope and angle of a line, switch to model and paper space, check for existence of a block, see if a block has attributes, search and replace block attributes/single-line text/multiple-line text, count/erase/highlight/de-highlight specified number of a specified object, etc, etc. Doing each function with straight Visual Basic would require several lines of code, but with CAD.OCX only a minimal amount of code is required!

此外，计算出的距离为限，计算中的点线，计算中点的一个弧形的，转换成弧度，以度，反之亦然，送字给AutoCAD命令提示中，增加了单剂量和多行文本，一绘画中，增加一个新层，计算出坡度和角度的一条线，开关，以模型和图纸空间，检查是否存在著一个座，看有没有座了属性，搜索和替换块属性/单线text/multiple-行文本，计数/擦除/高/解突出指定数量的指定对象，等，等做了每个函数与直Visual Basic中，将需要几行代码，但与cad.ocx只有极小量的代码需要！

This paper studied the earnings managements of the listed companies by dividing the accrual into above-the-line accruals and below-the-line accruals. And for above-the-line accruals and below-the-line accruals of 2002, I divided above-the-line-accruals into working capital accruals and nonworking capital accruals. Then I used modified Jones model by adding industry variables to study the new characteristics of earnings management in 2002. This paper provides evidence that the listed companies still used below-the-line accruals as the main earnings management instrument. On the other hand the listed companies also used working capital accruals as one of their earnings management instruments. On the basis of the studies above, I build two proxies of the earnings management.

本文首先通过对2002年上市公司盈余管理的分项实证研究来观察各种制度实施后上市公司利用线下项目进行盈余管理是否得到了一定的遏制，实证过程中采用修正的横截面JONES模型加入行业变量并经过适当变形对上市公司年报线上项目和线下项目，并进一步将线上项目分解出营运资金相关项目和非相关项目两项进行盈余管理的实证研究，发现企业对线下项目的操纵仍然在企业盈余管理中占据主要地位，但从某种程度上看，线下利润的操纵得到了一定的抑制，另外企业对营运资金应计项目的盈余管理也是显著的。

This is the inheritance of the tribe of the children of Issachar according to their families, the cities and their villages.

19：23 这些城并属城的村庄就是以萨迦支派按着宗族所得的地业。

I've have enough of your garbage.

我听了你的废话。