Experimental investigation of vitiation effects on supersonic combustor performance

Survey on the mode transition technique in combined cycle propulsion systems

“…The same phenomenon has been observed experimentally by Noda et al [46], and the matching total enthalpy is more effective than matching total temperature in mitigating the vitiation effects for ram-scram transition. The influences of H 2 O flow vitiation on the ram-scram transition process have been investigated by using the Wind-US computational fluid dynamics flow solver [25,56], as well as its effect on the combustion performance [34]. Goyne et al [20] have demonstrated the ram-scram transition solely caused by test gas vitiation experimentally, and they found that the transition from supersonic to dual-mode occurs at a higher fuel equivalence ratio in the ground facility tests than in flight, see Fig.…”

Three dimensional CFD investigation of shock train structure in a supersonic nozzle

“…They discussed that, the overall interaction was got modify for all control configurations and shows a reduction in separation and bow-shock strengths and in triple-point height. Li et al [7] examined the effect of vitiation on supersonic combustor performance. The results displayed that, the mechanism of the shock train changes by the addition of H 2 O and CO 2 to the clean air-stream.…”

Design of Intelligent Underground Sound Bird Repellent System Based on Wireless Communication Network

“…At present, airport bird repellent equipments include simulation robot and raptor, gas gun, electronic firecrackers etc. Through sound, movement, cry and other forms, they drive birds in and around the airport [1] [2]. The Doppler detection intelligent bird drive device designed by Li Kun etc.…”