The ignition and ignitability characteristics of a combustible mixture by a hot body of finite dimension and thereby heat capacity is studied by using matched asymptotic analysis in the limit of large activation energy, allowing for reactant consumption and the gradual cooling down of the body. It is shown that the system is governed by only a few parametric groupings whose physical significance is discussed. Furthermore, a set of universal ignitability limit curves can be identified for a given fuel-oxidizer system, allowing for generalized representation and exploration.
ASJC Scopus subject areas
- Aerospace Engineering