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Discussion

Match each quantity with what it describes.
List I
A. Collision efficiency
B. Coalescence efficiency
C. Collection efficiency
D. Collection kernel
List II
1. the product of the two above
2. the fraction of droplets in the path that strike
3. the swept volume rate times the efficiency
4. the fraction of strikes that produce union

  • A.A-2, B-4, C-3, D-1
  • B.A-3, B-1, C-4, D-2
  • C.A-2, B-4, C-1, D-3
  • D.A-4, B-2, C-1, D-3

Answer: C

Correct answer: A-2, B-4, C-1, D-3

The four quantities build on one another. Collision efficiency is the fraction of droplets in the path that strike; coalescence efficiency the fraction of strikes that unite; collection efficiency the product of the two; and the collection kernel the rate at which volume is swept multiplied by that collection efficiency.

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