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Study on flow structure of tandem multiple jets under the effect of regular waves

机译：常规波效应下串联多喷射流动结构的研究

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The effect of regular waves on the flow structure of tandem multiple jets is investigated experimentally in this study. The tandem multiple jets are discharged vertically into the wave flow. The particle image velocimetry (PIV) technique is employed to measure the flow field of tandem multiple jets. The movement of tandem multiple jets in regular waves is defined starting from the orifices as the separated region, the mixing region and the mixed region. These three regions are distinguished by the mixing point and the mixed point, respectively. The results show that the wave-to-jet velocity ratio R-wj is the most important parameter to characterize the effect of regular waves on multiple jets, affecting the mixing point location, the vertical velocity decay and the cross-sectional distribution of vertical velocity. Using curve-fitting, the formulas estimating the effects of wave-to-jet velocity ratio (R-wj) on the mixing point location and the vertical velocity decay are derived. This study reveals that the regular wave has a positive effect on the mixing and dilution of tandem multiple jets.
机译：本研究实验研究了常规波对串联多喷射的流动结构的影响。串联多个喷射被垂直放电进入波流。采用粒子图像速度（PIV）技术来测量串联多射流的流场。串联多个喷射在常规波中的运动是由作为分离区域，混合区域和混合区域的孔的开始定义。这三个区域分别由混合点和混合点区分。结果表明，波 - 喷射速度比R-WJ是最重要的参数，以表征常规波在多个喷射器上的效果，影响混合点位置，垂直速度衰减和垂直速度的横截面分布。使用曲线拟合，推导出估计波到喷射速度比（R-WJ）对混合点位置和垂直速度衰减的效果的公式。本研究表明，常规波对串联多喷射的混合和稀释具有积极影响。

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