6.5. Burning in Convective Atmospheres
6.5.1. The Stagnant Film Case
The spherical-symmetric fuel droplet burning problem is the only quiescent case that is mathematically tractable. However, the equations for mass burning may be readily solved in one-dimensional form for what may be considered the stagnant film case. If the stagnant film is of thickness δ, the free-stream conditions are thought to exist at some distance δ from the fuel surface (see Figure 6.16).
Within the stagnant film, the energy equation can be written as:
With b defined as before, the solution of this equation and case proceeds as follows. Analogous ...