For any practical situation, if (Gr/Re^2)>> 100, where; Gr = Grashof number and Re = Re
Reynolds number, then:
a. Forced-convection effects dominate
b. Free-convection effects dominate
c. Neither forced nor free convection effects dominate
d. Either forced or free convection effects dominate depending on the temperature levels involved.
Answers
Answered by
4
Answer:
thank you for the free points
Answered by
0
Answer:
Grashof number - Wikipedia
The Grashof number (Gr) is a dimensionless number in fluid dynamics and heat transfer which approximates the ratio of the buoyancy to viscous force acting on a fluid. It frequently arises in the study of situations involving natural convection ... If the ratio is much less than one, then free convection may be ignored.
Similar questions