The smoke performance was studied in smoke chamber. The detecting ability of IR thermal imaging is decreased with the smoke mass concentration increasing.
The principle of smoke jamming is studied in detail, smoke dispensing and testing technologies are introduced and the development trend of smoke screen technology is given.
In this paper, through outfield experimental research and theory analysis, the Stokes final sedimentation velocity formula is not demonstrated to adapt to analyzing performance of smoke.
Investigation reveals that smoke particles kinestate is decided mainly by the relative velocity between smoke cloud and particles and the smoke cloud turbulent intensity.
The results show that smoke sedimentation velocity is increased with the increase of the vacuum, the experimental results is accorded with the theory analysis.