Ignition enhancement characteristics of partially covered cavity in an ethylene-fueled scramjet combustor were investigated experimentally under the inflow conditions of Ma = 2.1, stagnation pressure P0 = 0.7 MPa, and stagnation temperature T0 = 846 K. It is concluded that under the influence of the baffle, the covered region will become a region with sufficient fuel during the stable combustion process and wall-pressure distribution will be increased due to this restricted region. Comparing with the uncovered cavity under the same equivalence ratio, partially covered cavity is more suitable for the formation and propagation of flame kernel, and ignition in the scramjet combustor could be intensified due to this cavity configuration.
Experimental investigation on ignition enhancement of partially covered cavities in a supersonic flow
2016-11-01
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Experimental investigation on ignition schemes of partially covered cavities in a supersonic flow
Online Contents | 2016
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