Theoretical study of thermal conductivities of various gas mixtures through the generalized Lennard-Jones interaction potential for application in gas-discharge lasers

19th International Summer School on Vacuum, Electron and Ion Technologies

Temelkov, K.A.^1 ; Slaveeva, S.I.^1 ; Fedchenko, Yu.I.^1

Metal Vapor Lasers Laboratory, Georgi Nadjakov Institute of Solid State Physics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee, Sofia

1784, Bulgaria^1

关键词: Binary gas;    Empirical method;    Gas discharge;    Gas discharge laser;    Lennard-Jones interaction;    Lennard-Jones interaction potential;    SIMPLE method;    Theoretical study;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/700/1/012005/pdf
DOI  :  10.1088/1742-6596/700/1/012005

来源: IOP

【 摘 要 】

Thermal conductivities of helium, neon, bromine, and hydrogen are calculated on the basis of the (12-6) Lennard-Jones interaction approximation. Where necessary for a more precise approximation, a generalized (n-m) Lennard-Jones interaction potential is used. Thermal conductivities of binary gas systems are calculated and compared through two different empirical methods for the case of gas discharges in He, Ne, and Ne-He mixtures with small admixtures of bromine and hydrogen. A new simple method is proposed for the thermal conductivity determination for the 3- and 4-component gas mixtures of our interest.