Nusselt number is a function of Prandtl number and ______________ number of fluid in natural convection heat transfer?
Correct answer: A. Grashoff
- A. Grashoff
- B. Biot
- C. Stanton
- D. Reynolds
Explanation
Natural-convection heat transfer depends mainly on buoyancy and fluid-property effects, represented by the Grashof and Prandtl numbers, so Nu is correlated as a function of Gr and Pr. Reynolds number is characteristic of forced convection.
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