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Experimental Measurement of Settling Velocity of Spherical Particles in Unconfined and Confined Surfactant-based Shear Thinning Viscoelastic Fluids

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10:28 min

January 3rd, 2014

January 3rd, 2014

12,022 Views

0:05

Title

2:02

Preparation of the Fluids

3:00

Measurement of Settling Velocities in Unbounded Fluids

4:55

Measurement of Settling Velocities for Fluids Between Parallel Walls

6:13

Rheological Characterization of Fluids

7:46

Determining the Influence of Elasticity on Unbounded Velocities

8:45

Quantifying the Retardation Effect of Parallel Walls on Settling Velocities

9:36

Conclusion

This paper demonstrates the experimental procedure to measure terminal settling velocities of spherical particles in surfactant-based shear thinning viscoelastic fluids. Fluids over a wide range of rheological properties are prepared and settling velocities are measured for a range of particle sizes in unbounded fluids and fluids between parallel walls.

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