In a barn there are some cattle. To help the cattle cool off, the farmer opened the doors on both ends of the rectangula

[answerhappygod]

In a barn there are some cattle. To help the cattle cool off,
the farmer opened the doors on both ends of the rectangular barn.
Assuming a simple rectangular channel down the length of the barn,
and the constant temperature cattle make the smooth surface of the
channel, what convection heat transfer coefficient do the cattle
experience? Barn dimensions: door height = 6-m, door width = 4-m,
barn length = 60-m. Atmosphere conditions: air temperature entering
22 deg C, wind speed = 6 m/s, temperature at exit = 28 deg C.
Cattle conditions: body temperature = 38 deg C.