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Akins, Sloan; Widmer, Linus

This study examines drag forces and their components on different sized steel ball bearings in a diluted solution of honey and in water at room temperature. To explore how the coefficient of drag depends on Reynolds’ number, drag components in the transition from laminar to turbulent flow were analysed, as well as viscous extremes at low Reynolds’ numbers corresponding to highly laminar flow. It was hypothesised that the coefficient of drag on the ball bearings in the honey solution would follow a linear trend predicted by Stokes’ Law and that the coefficient of drag would remain relatively constant throughout the transition from laminar to turbulent flows. The experimental data shows that for low Reynolds’ number values between 0.0017 and 0.34, the coefficient of drag closely follows the theoretical model of 24 divided by the Reynolds’ number and for high Reynolds’ number values between 1180 and 16840, the coefficient of drag remained almost constant at a value of 0.4.

Text

University of British Columbia. Science One Research Projects; University of British Columbia. SCIE 001

Vancouver : University of British Columbia Library

10.14288/1.0445527

Science, Faculty of

Undergraduate

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