The International Young Physicists' Tournament and the "Pumping Straw" problem - Hysteresis Experimental Data

The Experimental Setup.csv file represents the setup of the centrifugal pump for all experimental data used in FIG 13. This consists of the length, tilt, and radius of the straw, as well as the equilibrium contact angle of water on the straw walls.

The other 3 .csv files represent the experimental conditions (combination of depth of immersion and angular velocity) where Pumping, Hysteresis and Stationary Modes appear in FIG 13.

• Pumping Mode - Experimental Conditions where the thin-tube centrifugal pump always pumps.
• Hysteresis Mode - Experimental Conditions where pumping only occurs if the straws are filled.
• Stationary Mode - Experimental Condition where pumping never occurs, and stable menisci will always be present within both straws.