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양성모(Sungmo Yang),김근영(Keunyeong Kim),장원근(Eric Won Keun Chang),진상욱(Sangwook Jin),박기수(Gisu Park) 한국추진공학회 2018 한국추진공학회지 Vol.22 No.5
This paper summarizes the technical difficulties pertaining the double-compression ramp scramjet inlet model testing in a shock tunnel and their corresponding solutions. Four technical difficulties are identified: 1) test facility unstart, 2) flow disturbance and model damage due to the impact of diaphragm debris, 3) lack of fuel jet development due to multiple injection, and 4) short test time. After overcoming the identified technical difficulties, the improved results were confirmed through the results of shadowgraph images and shock tube end wall pressure.