Sedarsky David L, Paciaroni Megan E, Linne Mark A, Gord James R, Meyer Terrence R
Department of Combustion Physics, Lund Institute of Technology, SE-221 00 Lund, Sweden.
Opt Lett. 2006 Apr 1;31(7):906-8. doi: 10.1364/ol.31.000906.
We describe adaptation of ballistic imaging for the liquid core of an atomizing spray. To describe unambiguously the forces that act to break apart the liquid core in a spray, one must directly measure the force vectors themselves. It would be invaluable, therefore, to obtain velocity and acceleration data at the liquid-gas interface. We employ double-image ballistic imaging to extract velocity information through the application of image analysis algorithms. This method is shown to be effective for liquid phase droplet features within the resolution limit of the imaging system. In light of these results, it is clear that a three- or four-image implementation of this technique would allow the determination of acceleration, and by extension, information about the forces active in spray breakup.
我们描述了用于雾化喷雾液芯的弹道成像技术的适应性。为了明确描述在喷雾中作用于使液芯破碎的力，必须直接测量力矢量本身。因此，在液 - 气界面获取速度和加速度数据将非常宝贵。我们采用双图像弹道成像通过应用图像分析算法来提取速度信息。结果表明，该方法对于成像系统分辨率极限内的液相液滴特征是有效的。鉴于这些结果，很明显该技术的三图像或四图像实现将能够确定加速度，并进而获得有关喷雾破碎中起作用的力的信息。
