Drag Control in Supersonic Flow by Gas-Permeable Materials
The results of experimental study of the action of gas-permeable materials on wave drag of cylinder with flat end and longitudinally streamlined supersonic airflow at Mach number M=4,85 are presented. The data about reduction of aerodynamic drag with the use of wire grids and cellular-porous materials of different geometry and transparency located before the face of cylinder are acquired. Balance, pneumometric, thermograph measurements, measurements of vectorial velocity field by PIV-method and flowfield shlieren-visualization around the system of cylinder-gas-permeable insertion are carried out. The possibility of considerable (up to 55％) reduction of wave drag is shown, the physical interpretation of the effect of reduction is given.
supersonic flow wave drag reduction gas-permeable materials
0Anatoliy Maslov Sergey Mironov
Khristianovich Institute of Theoretical and Applied Mechanics, SB RAN, Novosibirsk, Russia, 630090
国际会议
The 8th Sino-Russia High-speed Flow Conference(第八届中俄高超声速流体力学研讨会)
上海
英文
251-258
2011-11-21（万方平台首次上网日期，不代表论文的发表时间）