Temperature distribution \(\frac{{T - {T_\infty }}}{{{T_0} - {T_\infty }}} = \frac{{\cosh m\left( {l - x} \right)}}{{\cosh ml}}\) is valid for:
1
Fin of finite length with insulated end
2
Fin of finite length with heat loss by convection at end
3
Very long fins
4
Fin of finite length with specified temperature at end