喷嘴

The influence of several parameters including injection rate of nozzle exit, the ratio of length between nozzle and inner gular tube, the ratio of length between gular tube and it's inner diameter and back pressure on the performance of gas solid injector is analyzed.

分析了喷嘴出口射流速度、喉嘴距、混合管段尺寸及背压等参数对气固喷射器性能的影响，结果表明：存在最佳的喷嘴出口射流速度、喉嘴距以及喉管长与其内径之比使得固气比达到最大值；而背压的增加则不利于提高喷射器性

An optimal heat transfer criterion was proposed, which means that the optimal heat transfer appears when the region outside the impellent thin spray film inscribes in the square heated surface.Based on the H criterion aforementioned, two DANFOSS nozzles of the three with inclined spraying angles were used to experimentally study the temperature distribution in the heated surface.

应用不同DANFOSS喷嘴对水平热源进行垂直喷射，在变换喷嘴距热源表面高度的前提下，研究最优换热性能出现在何种情况，得出H准则：当喷雾形成的液膜的圆形外推区域正好与热源边缘相切时，系统换热性能达到最佳。

Its main features: the volume of adjustable water jet nozzle, in accordance with the needs of customers customized different nozzle; over-current components for stainless steel, if the material may also have other requirements; irrigator can also be fitted out fitted dark; reliable and useful .

它主要特点：喷嘴喷水量可调，根据客户的需要订制不同的喷嘴；过流部件为不锈钢材质，如果对材质有其它要求也可；冲洗器即可明装也可暗装；且实用可靠。

In an ideal nozzle, the exit flow is completely parallel to the nozzle axis and possesses uniform pressure and Mach number.

在一个理想的喷嘴，出口流是完全平行的喷嘴轴，并拥有统一的压力和马赫数。

The measurement results of water nozzle GYC1781 are compared to the results from Malvern particle sizer in Steel Study Center of Metallurgy Department.

将水喷嘴GYC1781的测试结果与冶金部钢铁研究总院马尔文粒度仪对该喷嘴的测试结果进行了比较。

Based on the axial symmetric N-S equation of compressible liquid, we establish the onflow model to simulate convergent nozzles' free jet with different internal parameters by using structural grid and finite volume of quadratic precision.

建立了会聚型喷嘴的湍流模型，根据可压缩流体轴对称N－S方程，采用结构网格和二阶精度的有限体积法，对不同内部形状参数的会聚型喷嘴自由射流进行了数值模拟。

Based on CAD/CAM/CAE software——I DEAS Master Series,the standard feature library suitable to accumulator type unit injector is built up.A research on its variable structure,parametric design and 3 dimensional structure FEA is carried on with advanced CAD/CAE technique.It ensures the successful design of accumulator type unit injector.

本文基于大型CAD／CAM／CAE软件I－DEASMasterSeries，采用先进的CAD／CAE技术，建立了适于蓄压式泵喷嘴的标准特征库，对其进行变结构、参数化设计及3维有限元结构计算研究，为蓄压式泵喷嘴结构的设计成功提供了可靠的保证。

The analytic results indicate that pulverization can be enhanced by a higher air pressure,with a proper pressure ratio between air and liquid.

本文利用对不同工况下喷嘴喷雾的液体粒径进行计算，以研究气液两相压力对喷嘴喷雾效果的影

Geometric loss results when a portion of the nozzle exit flow is directed away from the nozzle axis, resulting in a radial component of momentum.

几何损失的结果时，部分喷嘴出口流是针对远离喷嘴轴，导致在径向组成部分的势头。

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At the rear was an innovative combination transaxle with the gearbox, clutch, differential, and inboard-mounted drum brakes.

在后面是与变速箱，离合器，差的创新结合变速，和内侧安装鼓式制动器。

For more people can apprecaite and have the master work, there is reproduction painting appears in the market, the large various selection of paint,the high saturation of color plus the plentiful sfumato, to make the reproduction perfect copy and detail as original painting, so as to meet the requirment of amateurs who love art paintings,they do not need to pay high price to get classical paintings.

颜料色域广，色彩饱和度高，色彩层次丰富，图像色彩还原真实，能完美的复制原作，满足艺术爱好者欣赏，艺术爱好者们不用支付昂贵的价格就能拥有经典油画。