Experimental and Theoretical Investigations of the Collisional Growth of Hydrometers

这项研究的目的是确定冰水流星的碰撞增长率。这将通过实验室实验和各种理论计算来实现。前者将利用现有的声学设备(在麻省理工学院)，该设备旨在利用驻波悬浮选定的晶体。该装置将用于测定冰粒与水冰颗粒之间的碰撞效率。此外，还将测量带电液滴与冰晶碰撞时的电荷分离。最后，对不同比重计附近的三维非定常运动场的计算将被用来解释实验结果。//

The objective of this research is the determination of the rate of collisional growth of ice hydrometeors. This will be accomplished using both laboratory experiments and various theoretical calculations. The former will exploit an existing acoustic device (at MIT) designed to suspend selected crystals using standing sound waves. This device will be used to determine the collision efficiency between ice particles and water-ice particles. Also, electric charge separation will be measured when charged drops and ice crystals collide. Finally, the calculation of three dimensional unsteady fields of motion in the vicinity of various hydrometers will be used to interpret the experimental results. //