Creeping flow around a sphere is defined, when particle Reynolds number is (A) < 2100 (B) < 0.1 (C) > 2.5 (D) < 500

Creeping flow around a sphere is defined, when particle Reynolds
number is
(A) < 2100
(B) < 0.1
(C) > 2.5
(D) < 500
by

1 Answer

Answer :

(B) < 0.1
by

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Reynolds number is significant in (A) Supersonics, as with projectile and jet propulsion (B) Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc. (C) Simultaneous motion through two fluids where there is a surface of discontinuity, gravity forces, and wave making effect, as with ship's hulls (D) All of the above

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