Abstract Among the many unknowns in the study of atomizing sprays, defining an unambiguous way to analyze turbulence is, perhaps, one of the most limiting ones. The lack of proper tools for the analysis of the turbulence field (e.g. specific one/two-point statistics, spectrum, structure functions) limits the understanding of the overall phenomenon occurring, impeding the correct estimation of motion scales (from the Kolmogorov one to the integral one). The present work proposes a methodology to analyze the turbulence in atomizing jets using a pseudo-fluid method. The many challenges presented in these types of flows (such as temporal fluid properties uncertainties, strong anisotropy and lack of a priori chance of determining the motion scales) can be simplified by such a method, as it will be clearly shown by the smooth results obtained. Finally, the method is tested against the one-phase flows turbulent data available in the literature for the Kolmogorov scaling of the one-dimension energy spectra, showing how a pseudo-fluid method could provide a reliable tool to analyze multiphase turbulence, especially in spray’s primary atomization.

中文翻译：

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雾化液体射流湍流研究

摘要 在雾化喷雾研究中的许多未知数中，定义一种明确的湍流分析方法可能是最受限制的方法之一。缺乏适当的湍流场分析工具（例如特定的一/两点统计、频谱、结构函数）限制了对发生的整体现象的理解，阻碍了对运动尺度的正确估计（从 Kolmogorov 1 到积分之一）。目前的工作提出了一种使用伪流体方法分析雾化射流中湍流的方法。在这些类型的流动中提出的许多挑战（例如时间流体性质的不确定性、强各向异性和缺乏确定运动尺度的先验机会）可以通过这种方法来简化，因为它会通过获得的平滑结果清楚地显示出来. 最后，