ABSTRACT
Six heat transfer mechanisms have been identied in previous ame impingement studies:
1. convection (forced and natural) 2. conduction (steady-state and transient) 3. radiation (surface, luminous, and nonluminous)
4. thermochemical heat release (equilibrium, catalytic, and mixed)
5. water vapor condensation 6. boiling (internal and external) [2]
These are shown schematically for a water-cooled target in Figure 9.3. All of the mechanisms are not usually present simultaneously and depend on the specic problem.
