@article{MAKHILLJEAS20072312724,
    title = {Effect of Lateral Conduction on the Efficiency of Rectangular Fins},
    journal = {Journal of Engineering and Applied Sciences},
    volume = {2},
    number = {3},
    pages = {613-618},
    year = {2007},
    issn = {1816-949x},
    doi = {jeasci.2007.613.618},
    url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2007.613.618},
    author = {D. Naylor},
    keywords = {Fins,extended surfaces,variable heat transfer coefficient,two-dimensional,finite element method,,laminar boundary layer},
    abstract = {A finite element numerical study has been conducted of two-dimensional heat conduction in a rectangular fin with a variable heat transfer coefficient (h<SUB>x</SUB>) in the flow direction. The results show that the predicted fin efficiency with variable local heat transfer coefficient can be significantly lower than when a uniform h<SUB>x</SUB> value is assumed. The fin efficiency is lower because of the spreading resistance associated with the lateral conduction of heat toward the leading edge. The effect of variable h<SUB>x</SUB> was found to increase as the fin Length-to-Width ratio (L/W) decreased. For laminar boundary layer flow at L/W = 1/10, the fin efficiency with variable h<SUB>x</SUB> was as much as 8.7% lower than with a uniform heat transfer coefficient. For a turbulent flow conditions, the effect of variable h<SUB>x </SUB>was found to be less significant.}
    }