Engineering Research Equipment Grant: High Speed Motion Analysis System

所要求的设备将在三个实验室之间共享。这些实验室中的每一个都在各自领域使用先进的激光诊断技术方面表现突出。他们工作的一个共同主题是使用激光薄片的光散射来分别确定火焰和流场的结构。由于目前的摄像系统速度很低，只能进行单次拍摄或非常慢的流动实验。利用自旋物理相机，可以研究内燃机湍流火焰的演化、气体射流中的三维浓度场和速度场，以及液体流动中的混合研究，因为它的速度很快。与传统的电影摄像机相比，该系统还具有获取定量、数字数据的优势。所得结果对了解发动机燃烧、流场结构和混合过程具有重要意义。

The equipment requested is to be shared between three laboratories. Each of these laboratories is prominent in the use of advanced laser diagnostics in their respective fields. A common theme of their work is the use of light scattering from laser sheets to determine the structure of flames and flow field, respectively. Due to the low speed of the present camera system, only single-shot experiments or very slow flows have been possible. With the Spin Physics Camera, the evolution of turbulent flames in internal combustion engines, three-dimensional concentration and velocity fields in gaseous jets, and mixing studies in liquid flows may all be studied due to its high speed. This system possesses also the advantage over conventional movie cameras that quantitative, digital data is obtained. The results obtained will be invaluable to the understanding of engine combustion, flow field structure, and mixing processes.