F121 PSP を用いたスクラムジェット燃焼器混合場の可視化

概要

論文の詳細を見る
The mixing fields within a scram-jet combustion chamber are visualized using pressure-sensitive paint (PSP) as an oxygen sensor. The experiments are performed in a small supersonic wind tunnel at the National Aerospace Laboratory-Kakuda Research Center (NAL-KRC). The main stream Mach number is 2.4,and the dynamic pressure ratio between the injected gas and the main flow are 0.3,0.7,1.1 and 1.5. Three fuel injection nozzles are used; oxygen and air is injected from these nozzles. The spread of the injected gas is measured to observe the effects of placing the nozzles in different positions. The results show that the jet has its own independent flow structure, and that little mixing of gases occurs between the flow structures created by each nozzle. When the injection dynamic pressure ratio is increased, the fuel mixing in the vicinity of the wall surface decrease.
日本流体力学会の論文
2001-07-31