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What is the Reynolds number range when the drag coefficient formula is 0.43?

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+1 vote
in Fluidization Engineering by (102k points)
What is the Reynolds number range when the drag coefficient formula is 0.43?

(a) Rep < 0.4

(b) 0.4 < Rep < 500

(c) 500 < Rep < 200,000

(d) None of the mentioned

This question was addressed to me in class test.

This key question is from Terminal Velocity of Particles in section Fluidization and Mapping of Regimes of Fluidization Engineering

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+2 votes
by (103k points)
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Best answer
Right choice is (c) 500 < Rep < 200,000

For explanation: Range is taken based on the experimental values.

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