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Q. |
When the ratio of the Grashoff number and to the square of Reynolds number is one, the dominant mechanism of heat transfer is: |
A. | Free convection |
B. | Entry length problem in laminar forced conduction (developing thermal boundary layer) |
C. | Mixed convection (both free and forced) |
D. | Forced convection |
Answer» C. Mixed convection (both free and forced) |
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