For motion of spherical particles in a stationary fluid, the drag co-efficient in hindered settling compared to that in free settling is _______________?
Correct answer: A. More
- A. More
- B. Less
- C. Equal
- D. More or less, depending on the type of particle
Explanation
In hindered settling, neighbouring particles obstruct the fluid flow and increase resistance to particle motion. Therefore, the effective drag coefficient is greater than in free settling.
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