Experimental Investigation of Mixing Processof Laser-Driven Single Granule with Gas

Granules can be accelerated to a high velocity using high-power lasers.We applied this technique to the process of mixing granules with gas to investigate the high speed gas-solid two-phase flow transportation.Optimization of target design and adjustment of laser parameters were adopted to control the laser-driven process.Diagnostic tools with high resolving power of space and time were set up to capture the high-velocity granule.The results indicate that the laser-driven launching technique is effective, and the shadow photographs of the high-velocity granule are successfully obtained.The experimental and diagnostic technology can also be used in the research of ejecta mixing, scramjet engine performance, and high-speed impact, dust explosion, and so on.