The computational fluid dynamics and the quadrature method of moments were adopted to simulate the turbulent liquid–liquid (L-L) emulsion flow inside the Taylor–Couette (TC) flow. Various breakup kernels and daughter size distribution models were tested. Generally, we found that the breakup kernel determines the mean droplet diameter, whereas the daughter size distribution function influences the DSD shape more. The coefficients in the CT and Chen breakup kernel were adjusted using the method proposed by Ravichandar et al. (2022), and it was found to be unsuitable in the studied liquid systems. The MB and Lehr breakup kernels better predicted the mean droplet diameter, but they were not applicable in highly dispersed phase viscosity systems in L-L TC flow. The MB breakup kernel and the Lehr daughter size distribution function predicted the experimental DSD very well at Re = 10400. The M-shaped Lehr daughter size distribution function showed diverse characteristics under different conditions and exhibited an optimal performance within specific parameters.

中文翻译：

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液-液 Taylor-Couette 流中乳化过程的液滴破碎模型的评估

采用计算流体动力学和矩求积法模拟泰勒-库埃特（TC）流内的湍流液-液（LL）乳液流动。测试了各种破碎内核和子内核尺寸分布模型。一般来说，我们发现破碎核决定了平均液滴直径，而子体尺寸分布函数对 DSD 形状的影响更大。 CT 和 Chen 分解核中的系数使用 Ravichandar 等人提出的方法进行调整。 (2022)，并且发现它不适合所研究的液体系统。 MB 和 Lehr 破碎核可以更好地预测平均液滴直径，但它们不适用于 LL TC 流中的高度分散相粘度系统。 MB 分解核和 Lehr 子体尺寸分布函数在Re = 10400 时很好地预测了实验 DSD。M 形 Lehr 子体尺寸分布函数在不同条件下表现出不同的特征，并在特定参数内表现出最佳性能。