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首页> 外文期刊>Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics >Studies on low viscous oil-water flow through return bends
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Studies on low viscous oil-water flow through return bends

机译：通过回弯的低粘性油水流研究

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摘要

In the present work, investigations have been carried out on the hydrodynamics of kerosene-water flow through return bends connecting two horizontal conduits. Extensive experiments are performed on two bend geometry (U and rectangular) and three flow directions through the bend (up, down and horizontal flow). It is observed that bend geometry has a strong influence on the downstream phase distribution while the direction of flow through the bend does not significantly affect the same. The pressure drop has been observed to be higher in the rectangular as compared to the U bend. The loss coefficients have been estimated for each of the cases. They have been found to be independent of flow patterns for all cases. Two different pressure drop correlations have also been proposed for each bend geometry to estimate liquid-liquid pressure drop across bend.
机译：在目前的工作中，已经对通过连接两个水平导管的弯头的煤油-水流的流体动力学进行了研究。对两个弯曲几何体（U和矩形）和通过弯曲的三个流向（上，下和水平流）进行了广泛的实验。可以看出，弯曲的几何形状对下游相的分布有很大的影响，而通过弯曲的流向则没有明显的影响。与U形弯头相比，矩形中的压降更高。已经针对每种情况估计了损耗系数。已发现它们在所有情况下均与流动模式无关。还针对每个弯曲几何形状提出了两种不同的压降相关性，以估计整个弯曲处的液-液压降。

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