Drag Forces in Dilatant Non-Newtonian Fluids

Major

Physics

Department

Physics and Astronomy

Degree

Undergraduate

Mentor

Jing Wang

Mentor Department

Physics and Astronomy

Abstract

The experiment's purpose is to understand drag forces in dilatant fluids by dropping three equally-sized metal balls of different mass into cornstarch/water mixture and filming their trajectory. More specifically, the experiment expands upon the work of Stefan von Kann's Dense Suspensions: Force Response and Jamming in order to determine three things: 1) whether or not drag forces in dilatant fluids are independent of a falling object's mass, 2) whether or not the drag forces on the object adhere to the relationship of D = 3(pi)(nu)(d)(v), and 3) if so, is it possible to determine a more precise (nu) value than the .87 to 3.96 Pa s provided by von Kann.

Presentation format

Poster

Poster Number

59

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Drag Forces in Dilatant Non-Newtonian Fluids

The experiment's purpose is to understand drag forces in dilatant fluids by dropping three equally-sized metal balls of different mass into cornstarch/water mixture and filming their trajectory. More specifically, the experiment expands upon the work of Stefan von Kann's Dense Suspensions: Force Response and Jamming in order to determine three things: 1) whether or not drag forces in dilatant fluids are independent of a falling object's mass, 2) whether or not the drag forces on the object adhere to the relationship of D = 3(pi)(nu)(d)(v), and 3) if so, is it possible to determine a more precise (nu) value than the .87 to 3.96 Pa s provided by von Kann.