## Investigation on the Effect of Temperature to the Damping Strength of a Viscously Damped Sphere in a Low-Viscosity Newtonian Fluid

**by Amano So**Category: STEM

**Abstract**– This paper answers, “What is the effect of temperature to the damping strength of a sphere that is viscously damped by water?” Viscous damping occurs due to the drag force of the fluid around the object. Using this, I created two mathematical models, the standard model which follows a common assumption about viscous damping, and an alternate model, which attempts to include the discarded information from the assumption. An experiment to test these models show that the overall trend is that as temperature increases, the damping strength decreases, similar to what the two models predicted. Although the models showed a trend that was consistent with the experimental results, it was concluded that it carries a limitation of having a high Reynolds number, as it causes a large systematic error. However, further studies can pursue an investigation of the differences between the two models proposed.