FORCED CONVECTION
Bird, Stewart, and Lightfoot
section 9.8
Figure 1. An illustration of forced convection - a forced
stream of air over the heated pipe takes heat away from the pipe
Figure 2. Use this annular ring to get differential
equations for the temperature distribution in laminar tube flow. (with energy
balances)
We start this section with the same equation in dimensionless
form.
It makes sense that theta is negative, because T should be less than To
for a forced convection heat transfer situation.