Formation of automobile emission plume and air exhaust mode of underground parking garages;

Research on characters of plume rising of automobile exhaust;

Through simulating,this paper analyzes the dispersion trend of the plume of leaked radioactive material during nuclear accidents on condition that atmosphere is stable to different geographical environments,and calculates the plume thickness distributing with time integral in the nuclear accident ambient area.

Electronic-Optical Data High-Speed Acquisition System of Ultraviolet Radiation Missile Plume Detecting;

An advanced facility and corresponding method for real-time detecting exhaust plume of rocket motors have been established.

Introduced the Method of electronic optical data high speed acquisition of ultraviolet radiation of solid rocket plume.

In the paper the laser transmittance which the infrared laser permeats plumes exhausted by solid-propellant motor is analyzed and a dynamic measuring method with double lamp-house is suggested.

In order to push for the quantitative analysis of characteristics of propellant, selecting low signal propellant, measuring engine plumes transmittance characteristic is of great significance.