## Textbooks & Solution Manuals

Find the Source, Textbook, Solution Manual that you are looking for in 1 click.

## WriteWise AI Model by Holooly Genius

Your Ultimate AI Essay Writer & Assistant.

## Holooly Arabia

For Arabic Users, find a teacher/tutor in your City or country in the Middle East.

## Holooly Help Desk

Need Help? We got you covered.

Products

## Textbooks & Solution Manuals

Find the Source, Textbook, Solution Manual that you are looking for in 1 click.

## WriteWise AI Model by Holooly Genius

Your Ultimate AI Essay Writer & Assistant.

## Holooly Arabia

For Arabic Users, find a teacher/tutor in your City or country in the Middle East.

## Holooly Help Desk

Need Help? We got you covered.

## Q. 10.1

Estimate the Nusselt number for a flat plate with characteristic dimension 50 mm exposed to a windspeed of 2.0 m $s^{-1}$. Assume now that a real leaf can be treated as a flat plate with the same characteristic dimension, but that its Nusselt number is twice the value calculated earlier (i.e. β = 2, pp. 160–161). Estimate the rate of convective heat transfer from the leaf at a windspeed of 2.0 m $s^{-1}$ when the difference between leaf and air temperature is 1.5 °C.

## Verified Solution

For the flat plate, $Re= 2.0 \times 50\times 10^{-3} /15\times 10^{-6} = 6.6\times 10^{3}$.

Nu = 0.60 $Re^{0.5}$ = 49. For the leaf, Nu = 2 × 49 = 98.

Then convective heat transfer is $C = 98\times 26\times 10^{-3} \times 1.5/50\times 10^{-3} = 76\; W\; m^{-2}$.