Cross-relaxation dynamics on anomalous saturation processes in low pressure supersonic cw HF chemical laser amplifier  

作　　者：范安辅 高智 周昕 

出　　处：《Science China Mathematics》1998年第10期1083-1091,共9页中国科学：数学（英文版）

基　　金：ProjectsupportedbytheNationalNaturalScienceFoundationofChina (GrantNo .194 74 0 36 )andbytheLaboratoryofHigh temperatureGasDynamics ;InsitituteofMechanics ;ChineseAcademyofSciences (GrantNo .KJ95 1 E 2 0 2 ) .

摘　　要：It is assumed that both translational and rotational noneq ui librium cross-relaxations play a role simultaneoulsy in low pressure supersonic cw HF chemical laser amplifier. For two-type models of gas flow medium with la minar and turbulent flow diffusion mixing, the expressions of saturated gain spe ctrum are derived respectively, and the numerical calculations are performed as well. The numerical results show that turbulent flow diffusion mixing model is i n the best agreement with the experimental result.It is assumed that both translational and rotational nonequilibrium cross-relaxations play a role simultaneoulsy in low pressure supersonic cw HF chemical laser amplifier. For two-type models of gas flow medium with laminar and turbulent flow diffusion mixing, the expressions of saturated gain spectrum are derived respectively, and the numerical calculations are performed as well. The numerical results show that turbulent flow diffusion mixing model is in the best agreement with the experimental result.

关 键 词：chemical laser tranrlational and rotational nonequilibrium laminar and turbulent flow mixing saturated grin spectrum 

分 类 号：O644[理学—物理化学]