Drag force on a sphere in steady motion through a yield-stress fluid
✍ Scribed by Tabuteau, Hervé; Coussot, Philippe; de Bruyn, John R.
- Book ID
- 121806949
- Publisher
- American Institute of Physics
- Year
- 2007
- Tongue
- English
- Weight
- 349 KB
- Volume
- 51
- Category
- Article
- ISSN
- 0148-6055
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## Abstract Drag coefficients of aerodynamically smooth spheres having a density variation of from 0.252 to 1.91 g./cc. and a diameter variation from 1.56 to 3.21 mm. were obtained for acceleration rates varying from 103.5 ft./sec.^2^ to ‐30 ft./sec.^2^ and for relative intensities of up to 45%. Th
We study the velocity and shape of air bubbles rising through a transparent yield-stress fluid. The bubbles are small enough compared to the experimental vessel that effects of walls are weak. We find that the terminal rise velocity of the bubbles increases approximately linearly with bubble radius