Control of Mach Reflection by a Single Laser Pulse
In the supersonic engine inlet,Mach Reflection probably appears when a supersonic flow goes through the symmetric wedges,causing a great total pressure loss.A single pulsed laser energy deposition leads a decrease of the Mach stem height and reduces the total pressure loss.By solving the two-dimensional RANS equations,with the condition of symmetric wedges at 22 degrees,and the free stream Mach number 3.45,influences of the deposition location and the magnitude of pulsed laser energy in Mach Reflection are investigated.The results indicate that when laser energy rises from 70mJ to 270mJ,the height of Mach stem changes and a vale value is obtained.The deposition position is also optimized.
supersonic inlet Mach Reflection laser pulse flow control
Wang Diankai Hong Yanji
the Academy of Equipment, Huairou, Beijing, China, 101416. State Key Laboratory of Laser Propulsion and Application, the Academy of Equipment, Huairou,Beijing,
国际会议
香港
英文
1516-1520
2012-12-11（万方平台首次上网日期，不代表论文的发表时间）