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首页> 外文期刊>International Journal of Heat and Fluid Flow >Flow regime effects on non-cavitating injection nozzles over spray behavior
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Flow regime effects on non-cavitating injection nozzles over spray behavior

机译:流动状态对非气穴喷嘴的喷射行为的影响

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摘要

This paper deals with the influence of flow regime (laminar, transition or turbulent) on the internal flow behavior, and how it affects the spray development in diesel nozzles. In particular, the research described here aims at studying and quantifying the internal flow regime effects on the spray behavior. With this purpose, internal flow results, based on mass flow rate and momentum flux measurements performed on three different tapered nozzles and which helped to determine the flow regime, has been taken into account as a point of departure for the spray behavior analysis. Thus, in this work, spray macroscopic visualization tests have been performed and analyzed which clearly revealed a change in the behavior of the angle and penetration of the spray related to the change of the flow nature. Moreover, with all the experimental data available, it has been possible to relate macroscopic parameters of the spray with those describing the internal flow (momentum and effective velocity) or the geometry of the nozzle (length or diameter) through correlations.
机译:本文探讨了流动状态(层流,过渡或湍流)对内部流动行为的影响,以及它如何影响柴油喷嘴的喷雾发展。特别地,此处描述的研究旨在研究和量化内部流动状态对喷雾行为的影响。为此,基于质量流量和在三个不同的锥形喷嘴上进行的动量通量测量得出的内部流量结果已被认为是喷雾行为分析的出发点,这有助于确定流量状态。因此,在这项工作中,进行了喷雾宏观可视化测试并进行了分析,这些测试清楚地揭示了与流动性质的变化有关的角度行为和喷雾渗透的变化。而且,利用所有可用的实验数据,可以通过相关性将喷雾的宏观参数与描述内部流量(动量和有效速度)或喷嘴的几何形状(长度或直径)的参数相关联。

著录项

  • 来源
    《International Journal of Heat and Fluid Flow》 |2011年第1期|p.273-284|共12页
  • 作者单位

    CMT-Motores Termicos, Universidad Politecnica de Valencia, Camino de Vera s, Valencia E-46022, Spain;

    CMT-Motores Termicos, Universidad Politecnica de Valencia, Camino de Vera s, Valencia E-46022, Spain;

    CMT-Motores Termicos, Universidad Politecnica de Valencia, Camino de Vera s, Valencia E-46022, Spain;

    CMT-Motores Termicos, Universidad Politecnica de Valencia, Camino de Vera s, Valencia E-46022, Spain;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    diesel injection; flow regime; turbulence; spray; visualization;

    机译:柴油喷射流动状态湍流喷雾可视化;

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