HF 111 PARTICLE DRAG COEFFICIENTS
GENERAL DESCRIPTION

The apparatus is designed to study the drag of a particle in a liquid under various Reynold numbers.

This is done by dropping a particle into a vertical liquid column and timing its fall between two points. Various sizes and density of particles are supplied including stream lined shaped objects.

A guide at the top of the tube is provided to minimize disturbance to the liquid. Valves at the bottom of the tubes provide a mean for particle removal with minimum loss of the liquid. A fluorescent tube light at the back of the liquid tube allows clear observation of the particle fall.

TYPICAL EXPERIMENTS
  • Measurement of drag coefficients of sphere under various Reynold numbers.
  • Effect of particle shape on rate of fall and drag coefficient.
  • Effect of boundary layer separation on motion of sphere.
  • Exploration of dynamic similarity.