i have q in heat tranfer 1for an extermnal flow if flow is

i have q in heat tranfer :

1)for an extermnal flow if ,,,,,,,,,,,,,,,,,,,,,,, flow is considered to be turbulent.

2) Reynolds number ; ratio of ............................................. to ,,,,,,,,,,,,,,,,,,,,,,,,,,,

3) for natural (free convection) if ................................................ flow is considered to be turbulent .

4) for an internal flow if ...............................flow is considered to be turbulent.

Solution

it is not clear