engineering recuitment BEL Probationary Engineers Mock Test 2025 Heat Transfer Convection Free Convection
The ratio
\(\rm \frac{Conduction\ resistance\ within\ the\ body }{Convective\ resistance\ at\ the\ surface\ of\ the\ body}\)
is known as
1
Nusselt number
2
Stanton number
3
Biot number
4
Grashof number