Numerical Simulation of the Effective Parameters on the Stability of Stoichiometric CH4/Air Premixed Combustion in a Micro-combustion Chamber

In the present study، numerical modeling of the combustion of a fully laminar stoichiometric premixed reactive flow of methane-air inside a 2D micro-combustion chamber was investigated. The aim of this study is the investigation of occurance، phenomenology and effective parameters such as flame stability on combustion process in MEMS devices for energy or propulsion generation on small scales for space exploration applications. The results show that flame stability in a micro- combustion chamber strongly depends on the combustion chamber wall thickness Lw، the combustion chamber wall thermal conductivity coefficient Kw، the combustion chamber width L، the outer wall convective heat transfer coefficient hout and reactive mixture velocity Vin.