Contents - Index


SF_12

 

 

Function SF_12 provides the shape factor ([m] or [ft]) for conduction between a cylinder centered in a square beam and the exterior surface of the beam.

 

Inputs:

 D = diameter of cylinder ([m] or [ft])

 w = length of square edges ([m] or [ft])

 L = length of square solid and cylinder ([m] or [ft])

 

Example:  SF =  SF_12(D, w, L)

 

Reference:  Incropera, F. & DeWitt, D. (2002). Fundamentals of heat and mass transfer, 5th ed. Hoboken, New Jersey: John Wiley & Sons. p. 193-194.

 

Example:

$UnitSystem SI Mass J K Pa Radian

$VarInfo D, w, L, SF units=m

D = 0.1 [m]

w = 0.2 [m]

L = 1 [m]

SF = SF_12(D, w, L)

 

{Solution:

SF = 8.159 [m]}

 

Shape Factors Index