Drop Collisions: Influence of Shape and Internal Calculations -- (CONACyT)

这是美国纽约州立大学布法罗分校的N. Asgriz教授和墨西哥墨西哥国立自治大学的a . Manchaca-Rocha教授在液滴碰撞动力学领域的合作研究项目。目的是研究液滴形状和液滴内部循环的影响，并制定碰撞液滴破碎的判据。这是一项计算与实验相结合的研究，其中美国参与者将专注于数值模拟，墨西哥同行将参与实验调查。在体积跟踪仿真中采用了一些简化的假设，如由于高惯性效应而忽略间隙气体等。对复杂液滴碰撞的基本理解，碰撞韦伯数的大范围变化，以及获得实际的碎片关联，是预期的。该项目涉及多种技术和自然过程，包括喷雾技术、燃料燃烧、核物理和雨滴动力学。这个项目是为了响应NSF-CONACyT倡议公告。

This is a collaborative research project between Prof. N. Asgriz of SUNY Buffalo (USA) and Prof. A. Manchaca-Rocha of UNAM (Mexico) in the area of collisional dynamics of liquid drops. The objectives are to investigate the influence of drop shape and drop internal circulation, and to develop a criterion for the fragmentation of collided drops. This is a combined computational-experimental study, where the U.S. participant will focus on numerical simulations, and the Mexican counterpart will contribute with the experimental investigation. Several simplifying assumption are adopted in the volume tracking simulations, such as neglecting of the interstitial gas because of high inertial effects. Fundamental understanding of complex droplet collisions for a large range of variation of the collision Weber number, as well as obtaining practical fragmentation correlations, are expected. The project has relevance to a variety of technologies and natural processes, including spray technology, fuel combustion, nuclear physics and rain drop dynamics. This project is in response to the NSF-CONACyT initiative announcement.