The Stoke's stream function applies to the (A) Irrotational flow only (B) Ideal/non i viscous fluids only (C) Cases of axial symmetry (D) None of these

The Stoke's stream function applies to the
(A) Irrotational flow only
(B) Ideal/non i viscous fluids only
(C) Cases of axial symmetry
(D) None of these
by

1 Answer

Answer :

(C) Cases of axial symmetry
by

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Dittus-Boelter equation used for the determination of heat transfer co￾efficient is valid (A) For fluids in laminar flow (B) For fluids in turbulent flow (C) When Grashoff number is very important (D) For liquid metals

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For flow of fluids through packed bed, the superficial velocity is (A) Less than the average velocity through channels (B) More than the average velocity through channels (C) Dependent on the pressure drop across the bed (D) Same as the average velocity through channels

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