Extended Surface Heat Transfer
Chapter One
CONVECTION WITH SIMPLIFIED
CONSTRAINTS
1.1 INTRODUCTION
Three quarters of a century ago, a paper by Harper and Brown (1922) appeared as
an NACA report. It was an elegant piece of work and appears to be the first really
significant attempt to provide a mathematical analysis of the interesting interplay
between convection and conduction in and upon a single extended surface. Harper
and Brown called this a cooling fin, which later became known merely as a fin. It is
most probable that Harper and Brown were the pioneers even though Jakob (1949)
pointed out that published mathematical analyses of extended surfaces can be traced
all the way back to 1789. At that time, Ingenhouss demonstrated the differences in
thermal conductivity of several metals by fabricating rods, coating them with wax, and
then observing the melting pattern when the bases ... read full excerpt from Extended Surface Heat Transfer ebook
