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1.Because of experiment matching conclusion, Optimizing diameter of nozzle is (0.21mm。3)、Angle of nozzle。
经过匹配比较,优选的孔径为(0.21mm。3)、喷油器喷孔夹角。收藏指正
2.The effects of nozzle protrusion, nozzle hole parameters, nozzle-opening pressure, fuel supply advance angle, combustion chamber configuration and working condition on the performance of umbrella-curtain spray (UCS) combustion system were investigated on a single-cylinder diesel engine.
研究了单缸柴油机喷嘴端伸出量、喷孔参数、启喷压力、供油提前角、燃烧室结构和工况对伞帘喷雾燃烧系统性能的影响。收藏指正
3.STUDY ON ANGLE OF SPRAY COOLING WATER FOR 3/8 BD3 TYPE NOZZLE
3/8BD3型喷嘴流股扩张角度研究收藏指正
4.Detailed predictions on the fluid flow in mold and in cavity of nozzle working end were obtained at different side-hole angle and submerged depth of nozzles, and then the flux variation of liquid steel passing through central hole of the three-hole nozzle and the fluctuation of liquid steel in mold were inspected based on above predictions.
针对3孔浸入式水口不同侧孔倾角和浸入深度，数值模拟对结晶器内钢水流动做出了较为详细的预报，研究工作就此分别考察了水口中心孔流量变化和钢水液面波动幅度。收藏指正
5.The computational results show that the thrust-vectoring angle is dependent on the freestream Mach number, nozzle pressure ratio(NPR), the position of the injection and secondary pressure ratio(SPR).
对时间的积分采用的是隐式近似因子分解法。 文中计算了外流马赫数、喷管压强比、次流总压与主流总压之比以及次流喷口位于不同位置时的矢量偏角的产生情况。收藏指正
6.By means of adjusting the spiral angle and streaming area,different velocity fields,pressure fields and atomization angles are carried out to study the effect of the swirl distributor to the flow characteristics of the nozzle.
通过调整旋流喷嘴旋流片的螺旋升角和通流面积等结构参数,对喷嘴雾化的压力、速度场进行计算,推导了喷嘴的雾化角,从而研究旋流片对喷嘴流场特性的影响。收藏指正
7.The effect of main jet pressure and starting angle on weft ejected from the main nozzle and through the profile reed with yam tunnel are analyzed in the starting, free - flying and brake - flying phase.
分析了主喷压强和始喷角度的变化对纬纱在筘槽内的飞行状态产生的影响,纬纱张力曲线的形态也不同.收藏指正
8.The results show that the Mach number and Stokes number are decisive similarity criterion,and the modeling errors of the particle impacting velocity and angle on nozzle wall are less than 5% and 3°,respectively.
结果表明:马赫数和斯托克斯数(Stk)是两相流动的决定性相似准则,其对粒子与壁面撞击速度的模化误差小于5%,撞击角度的模化误差小于3°;收藏指正
9.Experiment have been done in supersonic wind tunnel. Experimental Mach number is 2.0, the angles of attack are form 0° to 6°, Inclined angle of nozzle is 30° , ratios of jet pressure εis 89.7, the medium of jet is cool air.
实验是在超声速风洞中进行的,实验马赫数为2.0,迎角α=0°-6°,喷嘴倾角θ=30°,喷流压力比ε=0、40.6和89.7,喷流介质为冷空气。收藏指正
10.The line pressure at injector side and nozzle needle lift were measured to evaluate the injection process of different mixing ratios of a bio-diesel.The measured results show that the peak pressure is higher,the injection delay and duration exhibit a slightly longer,which made a higher fuel-injection per-cylinder cycle,at the same fuel delivery advance angle,engine speed and load,when the bio-diesel ratio increases.
通过测试不同工况下的高压油管嘴端压力和喷油器针阀升程,研究了不同配比生物柴油对柴油机喷射过程的影响.实验研究表明:在供油提前角、转速和负荷相同的情况下,随着燃料中生物柴油含量的增加,高压油管最大喷油压力增加,喷射延迟期和喷射持续期变长,导致循环喷油量增大.收藏指正
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