Astronaut Kjell Lindgren conducts the ‘Capillary Beverage’ experiment on a workbench (MWA) aboard the International Space Station during Increment 44/45. A sheet of white paper is used as a diffuse back-light for the orthogonal HD video view. The dynamic fluid interface profiles are digitized for comparisons with theoretical and numerical analyses. Capillary surface configurations, stability, drain rates, and liquid residuals are examples of experiment measurement objectives during the intermittent and continuous drinking procedures. The experiments included tests on six space cups that vary cup volume, wetting condition, lip condition, fill level, fill location, fluid type and fluid temperature. Experiments are performed for at least 10 drinks: cold, warm and hot water, a chocolate breakfast drink, Kona coffee with and without cream, a lime drink, fruit punch, a peach mango smoothie, and espresso.
