查询词典 vortex flow

Showed results for steady flow, steady irrotational flow, and irrotational flow.

说明稳流、稳定不旋转流和不旋转流的结果。

Furthermore, if the entropy of the flow remains as a constant, we can have the isentropic Euler system, and if the flow is assumed to be irrotational, we can have the potential flow equation.

例如假设流体状态的变化与时间无关，只与空间状态有关，那么我们可以得到定常的欧拉方程组；如果再假设流体的熵保持为常数，那么我们进一步得到等熵的欧拉方程组；如果再假设流体的速度场满足无旋条件，我们可以得到所谓的位势流方程组。

The main purpose of this study is to find the solution of the two- dimension irrotational flow and supercritical flow in channel contractions. For irrotational flow, the potential function is used to compute the water depth and velocity distributions in constriction channel.

本文的主要目的为分析二维渠道中非旋流及超临界流之流况，针对二维束缩段非旋流时，利用等势能函数来计算矩形渠道收缩段之水深及流速分布。

Characteristics of the Internet traffic data flow are studied based on the chaos theory. A phase space that is isometric with the network dynamic system is reconstructed by using the single variable time series of a network flow. Some parameters, such as the correlative dimension and the Lyapunov exponent are calculated,and the chaos characteristic is proved to exist in Internet traffic data flows. A neural network model is constructed based on radial basis function to forecast actual Internet traffic data flow.

摘 要：应用混沌理论，分析了网络流量，用单变量的网络流量时间序列重构与网络动力系统等距同构的相空间，进而计算了实际网络的关维数和Lyapunov指数，并证实了网络流量存在混沌特性；据此建立了基于径向基函数神经网络的模型，并对实际网络数据流进行了预测。

Using FLUENT, a large-scale fluid project emulation software, a numerical simulation for cleaning air flow field were made, the intact equivalence line chart and vector graph of the air flow speed distribution were obtained, which provide more overall understanding to the cleaning air flow field speed distribution.

利用大型流体工程仿真软件FLUENT，对清选气流场进行了数值模拟，获得了完整的清选气流速度分布的等值线图和矢量图，对清选气流场的分布有了更全面的了解。

Results: 72 cases with intrauterine residual and 8 cases with endometritis-like echo showed local blood flow increase, appearing type low resistance arterial blood flow spectrum, RI.6, 6 cases without blood flow signal are obsolescent blood clot.

结果：72例宫内残流物及8例宫内膜炎性改变的病例显示局灶性血流丰富区，呈低阻力型动脉血流颇谱，RI.6；6例未探及有血流信号的病例为陈旧性血块。

It was known that the mass transfer in the packed column was influenced by the "natural"flow. In this paper, the process of forming the"natural"flow was analyzed. By changing the geometric dimensions of the structured packing, the maldistribution of the"natural"flow could be decreased.

以往的研究表明，填料塔传质效率的下降与液体"自然流"的形成有关，本文通过研究液体的微观流动，对规整填料塔内"自然流"形成的原因进行了分析，指出了填料结构与"自然流"形成的内在关系，并提出了改变填料结构，以降低"自然流"不均匀分布的方法。

8 Message Flow A Message Flow is used to show the flow of messages between two participants/processes that are prepared to send and receive them.

消息流是用来去显示在两个参与者或过程之间的消息的流转，有它准备好去发送并接受他们。

By a series field observation data, an empirical equation of mean velocity of viscous debris flow was got. The velocity calculated by the asymmetric coefficients, bottom slope and hydraulic radius of flow. It is good at both high resistance and low resistance area of debris flows. It is good consistent for the measuring velocity of otherwise field observation data of debris flow and viscous mudflow by this empirical equation.

由一系列野外观测资料得到的由泥石流不均匀系数、泥石流运动底部纵比降和水力半径计算的粘性泥石流运动平均速度经验公式，能适应各种类型的泥石流沟，与其它系列的观测资料对比有很好的一致性，与粘性泥流的观测资料对比也很接近。

A detailed investigation was conducted in this paper on the flow asymmetry and its influencing factors over an ogive slender body model, incorporated with surface pressure measurement, skin oil flow pattern visualization, hot wire dynamic signal acquasition and other relevant approaches, in a low turbulence wind tunnel.The obtained test results demonstrate good accordance with those published abroad in the behavior, tendency of the flow asymmetry and the effects due to Reynolds number, incoming turbulence and model geometry etc.

本文通过模型表面压力分布测量、表面油流图谱显示和流场热线信号采集分析等手段，在低湍流度风洞中对细长拱柱体模型的大攻角流动非对称性及其影响因素进行了较为深入的研究，试验获得的细长体大攻角流动非对称性的特征、趋势以及Re数、湍流度和模型构型等因素对大攻角流动非对称性的影响规律，与国外资料上发表的结果是一致的。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。