Capillary Rise between Parallel Perforated Plates in Microgravity  

作　　者：Diana Gaulke Michael E. Dreyer 

机构地区：[1]Center of Applied Space Technology and Microgravity (ZARM), University Bremen, Am Fallturm, Bremen D-28359, Germany

出　　处：《Journal of Physical Science and Application》2014年第5期277-290,共14页物理科学与应用（英文版）

摘　　要：This paper presents the setup and performance of a drop tower experiment which investigates the behavior of liquid during self-driven capillary transport between two parallel perforated plates under microgravity. With the onset ofmicrogravity the liquid rises between the two parallel plates as a result of capillary pressure. Eight different sets of plates are tested in this study and the free surface height and the volume of transported liquid is subsequently analyzed. The plate sets differ in geometric properties of their perforations, distance, and width. In each set the perforations of both plates are identical and have a diameter of a few millimeters. The capillary rise velocity is influenced by the perforation diameter and the area porosity of the plates. As could be expected, the capillary transport capability increases with decreasing plate porosity.

关 键 词：WETTING MICROGRAVITY CAPILLARY liquid rise WICKING pinning. 

分 类 号：O441.1[理学—电磁学] TE311[理学—物理]