Straight-Base Concave Parabolic Fin
Dimensional: eta_fin_straight_parabolic(th, L, h, k)
Function eta_fin_straight_parabolic calculates the fin efficiency of a concave parabolic fin with a parabolic base. The function then calls a corresponding non-dimensional function, which determines the fin efficiency. Note that the fin surface area that should be used with this fin efficiency is:
Inputs:
L - length of the fin [m or ft]
th - thickness of the fin at the base [m or ft]
h - heat transfer coefficient [W/m^2-K or Btu/hr-ft^2-R]
k - conductivity of fin material [W/m-K or Btu/hr-ft-R]
Example:
$UnitSystem SI K Pa J
L=0.06 [m]
th=0.003 [m]
h=60 [W/m^2-K]
k=200 [W/m-K]
eta=eta_fin_straight_parabolic(th, L, h, k)
{Solution: eta=0.7557}
Non-dimensional: eta_fin_straight_parabolic_ND(mL)
Function eta_fin_straight_parabolic_ND returns the fin efficiency of a concave parabolic fin with a rectangular base given the product of the fin parameter, m, and fin length, L, where m is defined as:
