This study focuses on the dynamics of two equal‐sized droplets of non‐Newtonian liquids with simulations using the volume of fluid method and the local front reconstruction method. The non‐Newtonian behavior is implement via a power‐law model. The droplet interactions are performed for Weber numbers ranging from 20 to 300 and impact parameters from 0 to 0.6. Both methods produce similar results at low Weber numbers, while the disintegration of the droplets at high Weber numbers occurs via different mechanisms. Our results demonstrate that the boundaries of the collision maps are highly dependent on the power‐law index. Additionally, the diameter of the ring for head‐on collisions is increased with increasing Weber number and decreasing power‐law index, while the critical ligament length in off‐center collisions increases with Weber number and power‐law index.

中文翻译：

---

表征幂律流体的二元液滴碰撞


本研究的重点是使用流体体积法和局部前沿重建方法进行模拟，研究两个大小相等的非牛顿液体液滴的动力学。非牛顿行为是通过幂律模型实现的。对 20 到 300 的韦伯数和 0 到 0.6 的影响参数执行液滴交互。两种方法在低韦伯数下产生相似的结果，而在高韦伯数下液滴的分解通过不同的机制发生。我们的结果表明，碰撞图的边界高度依赖于幂律指数。此外，正面碰撞的环直径随着韦伯数的增加和幂律指数的降低而增加，而偏心碰撞中的临界韧带长度随着韦伯数和幂律指数的增加而增加。