采用紊流射流理论推出了新的壁面射流计算公式,并在正确描述喷注贯穿的基础上建立了有涡流作用的空气卷吸模型。
The theory of turbulent jet has been employed to induce new formulas for wall jet, and on the base of correct spray penetration, air entrainment model in swirl field has been built.
远场涡流(RFEC)技术作为电力和化工部门管道日常检测和维护手段,将发挥越来越重要的作用。
The remote filed eddy current (RFEC) techniques will become more and more important as a tool of the pipes' daily check and maintenance in power and chemical industry.
介绍了轧辊涡流检测设备的工作原理,设备组成,功能以及在轧辊方面的作用和效果。
This article introduces a roll eddy current detecting operating principles, equipment composition, functions and the role and effectiveness of roller.
试验结果证明,转阀具有导向作用,采用转阀对进气涡流进行调节比用挡板具有更大的调节范围。
Experiment results show that the rotating valve has a guide role and has a broader adjusting range to the intake swirl ratio than the vertical valve has.
利用该系统所进行的柴油喷雾实验表明,喷雾与空气相互作用产生卷吸现象,在局部雾化区域形成涡流。
The results of diesel spray experiment show the entrainment phenomenon between surrounding gas and diesel spray, and the vortexes appear in parts of the atomizing area.
固定在壳体出口段,其作用是消除旋涡流,以减小对下游仪表性能的影响。
It is fixed at exit section of the shell to reduce whirling current and thus reduce compact on the performance of instruments of lower reaches.
空气涡流对燃油与空气混合的促进作用主要发生在油束与燃烧室壁面碰撞以后。
The function of air motion, which promotes fuel mixing with air, is great mainly after fuel spray impingement.
螺旋气道通过气门间隙与缸壁的气流相互作用也产生涡流,因此,涡流数取决于相应气缸中心的螺旋线方位。
Helical port also produces swirl by airflow interaction of valve gap and cylinder wall, so swirl number depends on helical line direction of relevant cylinder center.
本文介绍了进气涡流对直喷式柴油机混合气形成的作用和它对整机性能的影响。
This paper reviews the effect of induction Swirl on mixture formation and engine performance of DI diesel engine.
在风波相互作用中引入波诱导雷诺应力并用涡流粘度予以封闭。
The wave induced Reynolds stress is introduced into the wind wave interaction and closed by the eddy viscosity model.
试验结果表明,当这种喷油器运用于涡流室式柴油机时,可以起到降低发动机燃油消耗与排气烟度的作用;
The results showed that, when the mixture was used to the diesel engine with swirl chamber the engine performance including fuel economy and smoke emission could be improved remarkably.
试验结果表明,当这种喷油器运用于涡流室式柴油机时,可以起到降低发动机燃油消耗与排气烟度的作用;
The results showed that, when the mixture was used to the diesel engine with swirl chamber the engine performance including fuel economy and smoke emission could be improved remarkably.
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