A PRELIMINARY MODELING STUDY ON LASER PROPULSION
Laser propulsion is one of the important applications involving laser-plasma interaction. In this paper, a preliminary two-dimensional modeling study is conducted concerning the characteristics of laser-sustained plasma encountered in laser propulsion. The energy absorption by the working gas, the radiation loss from plasma and the effect of working-chamber shape on the laser-sustained plasma characteristics are considered. The modeling results are helpful to understand the generation mechanism of laser-sustained plasma and the complicated flow and heat transfer phenomena involved in the laser propulsion.
Today's society has entered the era of big science.In the era of big science,research project generally has the characteristics of intercross of multi-subjects,high investment,multi-organizations involvement,and so on.It is the most complicated engineering system of managing the research project in the era.Based on the theory of modularity,this paper makes a modular decomposition to the large-scale research project,takes the modules as the project activities,and establishes the project integrated management model.It can effectively reduce the complexity of project and facilitate scheduling optimization by using mathematical programming tools.On this basis,this paper builds a model to optimize the project schedule.It can provide an effective method for research project scheduling management.