**5. Nomenclature**

*a,b* Grading parameters for thermal conductivity *h* Convection heat transfer coefficient (W/(m2 °K)) *k* Thermal conductivity of the fin material (W/m°K) *L* Fin length (m) *m* Geometry parameter which controls the shape *mf* Convectional fin parameter ((2*h*/*a*δ0) 0.5) *n* Geometry parameter which controls the thickness *Q* Heat dissipation (W) *Rf* Aspect ratio, constant for fin shape relations (*R*1/*R*0) *r* Fin radius at the start of element (*m*) *R* Radius (*m*) *T* Temperature (*°C*)

*x* Dimensionless radial coordinate
