Sedarsky David, Rahm Mattias, Linne Mark
Opt Lett. 2016 Apr 1;41(7):1404-7. doi: 10.1364/OL.41.001404.
Probing the dynamics of structures in turbid media is important for understanding the internal forces that drive the time evolution of many fluid systems; the breakup of fuel injection sprays is a prime example. We demonstrate a three-pulse configuration for time-gated ballistic imaging, applied to a turbulent, steady spray allowing the acquisition of time-correlated image data. Coupled with targeted region-matching analysis, the detected image triplets are used to generate time-resolved velocity and acceleration vectors representing motion and forces involved in spray development.
探究浑浊介质中结构的动力学对于理解驱动许多流体系统时间演化的内力非常重要；燃油喷射喷雾的破裂就是一个典型例子。我们展示了一种用于时间选通弹道成像的三脉冲配置，应用于湍流、稳定的喷雾，从而能够获取时间相关的图像数据。结合目标区域匹配分析，检测到的图像三元组用于生成时间分辨的速度和加速度矢量，以表示喷雾发展过程中涉及的运动和力。
