Experimental Investigation to Particle Velocity and Concentration of Gas-Solid Jetting Flux in Sand and Dust Environment
Ma Zhihong(1),Li Jinguo(1),Li Yunze(2),Wang Jun(2)
(1 Institute of Radar and Electronic Countermeasures of the Air Force Equip ment Academe, Beijing, 100085)
(2 Beijing University of Aeronautics and Astronautics, Beijing, 100083)

Abstract: Digital particle imaging technology (DPIV) is adopted to experiment ally investigate sand particle velocity vectors and concentration, which are ins tantaneously measured in sand and dust environment. The experimental resultsre flect the rules of particle velocity and spacial distribution in gas-solid jetting flux. The disciplinary cognition motivates to develop sand and dust equipment homemade and to confirm the way of supplying sand and dust and the parameter of test segment.
Keywords: sand and dust, environmental experiment,  DPIV, velocity vectors, concentration.