Radiation Fin Efficiency for One-Dimensional Heat Flow in a Circular Fin

The one-dimensional steady-state solution for radiation from one side of an annular fin has been computed for values of the two design parameters Display Formula $0⩽ϵσθi3Kro-ri⩽2.0$ and Display Formula $1.001⩽ρ=rori⩽15.0$. The solution supplies design information needed for satellite thermal-power dissipating surfaces.