Wave Propagation Theory in Gasless Systems

Combustion Wave Propagation Theory in Gasless Systems 

The application of combustion theory to gasless synthesis processes is based on a comparison of the mass and thermal diffusivities in the solid reactant mixture. In these types of systems, the Lewis number is very small  

Phase transformations with a significant thermal effect (e.g., melting, evaporation) are also sometimes included. For example, the effect of melting can be accounted for by introducing a negative heat source (Aldushin and Merzhanov, 1978)  

Similarly, heat losses from the combustion zone to the surroundings yield other types of negative sources. For convective heat losses. 

For a combustion wave that propagates through the reactant mixture with a velocity U, we can change to a coordinate system attached to the wave (see Fig. 18)  

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A. Combustion Wave Propagation Theory in Gasless Systems 120... 

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