查询词典 static flow

The characteristics of flow fields in annuluses between moving and static walls formed in train running through a tunnel is the important content of tunnel aerodynamics and also one of the main bases to study and solve the problem of the piston wind in tunnels.

列车通过隧道时，列车表面与隧道表面之间的环隙流场特性，是隧道空气动力学的一个重要内容，也是研究和解决隧道活塞风的主要依据之一。

The finite element analysis of static electric field and the orthogonal design method are combined and used to optimize ECT sensor with an overall score of the reconstructed image fidelities of typical flow patterns as the optimum object function. The overall quality of the images reconstructed is improved effectively by this optimum method.

提出一种以典型流型重建图象质量综合评分最优为目标，有限元分析与正交设计相结合的ECT传感器优化设计方法，有效地改善了重建图象的总体质量。

Laminar flow tunnel ; off-loaded and non-heated ; air cleanness degree of fan ; cleanness of glass bottle ; static test

层流式隧道；空载不加热；风机空气洁净度；玻璃瓶清洁度；静态验证

Based on the interpolation-type static model, the realtime dynamic simulation model of the axial-flow fan is set up using the relevant laws and principles of funs.

在插值型静态模型的基础上，依据风机的有关定律和原理，建立了轴流风机的动态实时仿真模型。

Based on the analysis of one type high-speed gas bearing working principle, the bearing diameter of axle static carrying force model was set up, and the relationship between bearing clearance gas flow rate, intensity of pressure and orifice radius were analyzed, along with the diameter of axle movement tracking under the centrifugal force in the low rotating speed was found.

在分析一类高速气浮轴承工作原理的基础上，建立其轴径轴承的静态承载力模型，并据此分析出轴承间隙中气体流量、压强与节流孔孔径间的相互关系，以及在低速运转下受离心力作用的轴径中心运动轨迹。

The nozzle of the gasifier is simplified. The cold-flow field in the gasifier chamber is studied. The research shows that the chamber has recirculation along the whole length. The particles in the chamber perform a very good flowing characteristics even for the large particles of dp=150μm, and no abrupt change is observed. This is due to the operational pressure is high and the density of the gas is large there. The maximal reflux velocity of both phases, the reflux intensity, the concentrational distribution of particles, and the static pressure loss in the chamber are all related to following factors: the load of gasifier, the concentration of coal-water slurry, the diameter of the coal particle, the distribution ratio of oxygen in the two channels of the nozzle, and the angle of jet in nozzle.

本文对水煤浆气化炉喷嘴进行了简化处理，在此基础上，对气化室内的冷态流动过程进行了研究，发现：整个气化室都处于流动的回流区长度范围以内；水煤浆气化炉中，由于操作压力很高，气相密度很大，所以即使对于dp=150μm的较大煤颗粒，其对流体的跟随特性也很好，没有发生流动特性突跃的现象；两相的最大回流速度、回流强度，颗粒相的浓度分布，以及气化室内的静压力损失等，均与气化炉的负荷、水煤浆浓度、煤粒直径、O2在喷嘴两个流道中的分配比例、以及喷嘴的射流角等参数有关。

The cavitating flow through a water hydraulic cone valve was performed by the CFD to obtain static pressure distribution images.

利用计算流体动力学的方法，建立了气穴流场的数学模型，采用流场仿真获得了纯水液压锥阀阀口流速、压力等分布规律。

In this paper a new contingency screening and ranking method is formed by combiningiterative filtering screening technology with continuation power flow analysis. Researchingpreventive control policy in reactive power compensation and load control when themargin of stability is serious, and reciprocal math model is given;through the exempleof IEEE39 typical system , the availability of the discussed methods in this dissertationwas approved. Aimed at the real grid, the contingency screening analysis and preventivecontrol policy based on Beijing power grid is discussed;the static voltage stabilityanalysis software based on figure draw of Beijing grid is realized, and the software hasthe junction to BPA .

论文提出了将迭代过滤筛选技术和连续潮流法相结合的事故筛选分析方法；从无功补偿控制和负荷控制两方面研究了系统裕度紧张时的预防控制策略，给出了相应的数学模型；采用IEEE39节点的标准系统算例，验证了本文提出的静态电压稳定事故筛选分析方法的可行性；针对实际电网讨论了基于北京电网的事故筛选分析和预防控制策略；通过与BPA接口实现了基于北京电网图形平台的静态电压稳定分析软件。

Different kinds of resins were applied to inspect the static and dynamic adsorption ability,to optimize the concentration,volume and flow rate of eluant.

黄芪散的制剂基础研究对不同产地葛根、黄芪药材进行质量考察，筛选质量中等的药材进行工艺考察。

Extract of total flavonoids was purified with macroeticular resins. Different kinds of resins were applied to inspect the static and dynamic adsorption ability,to optimize the concentration,volume and flow rate of eluant.

对葛根总黄酮的提取纯化工艺进行了研究，考察不同乙醇浓度，溶媒倍量，提取时间、提取次数和提取温度对总黄酮转移率和纯度的影响，建立了四因素三水平的正交试验，最终确立了最佳的提取工艺为：10倍量70%乙醇加热回流提取2次，每次2小时。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。