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Theoretical Gain Optimization in $CO_2-N_2-H_2$ Gasdynamic Lasers with Two-Dimensional Wedge Nozzles

Reddy, NM and Reddy, KPJ and Prasad, Krishna MR (1986) Theoretical Gain Optimization in $CO_2-N_2-H_2$ Gasdynamic Lasers with Two-Dimensional Wedge Nozzles. In: AIAA Journal, 24 (12). pp. 2045-2046.

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Abstract

In an earlier publication,1 we reported the theoretical gain optimiation studies of a 16-\mu m $CO_2-N_2-H_2$ gasdynamic laser (GDL) in which it was showed that the optimum value of a 2.06% $cm^{-1}$ gain could be obtained with conical or hyperbolic nozzles. In this Note, we report the results of optimization studies with a 16\mu m $CO_2-N_2-H_2$ GDL using twodimensional wedge nozzles. We have found that the optimum value of the gain that can be achieved is as high as 12.7% $cm^{-1}$ on the P(15) line of the $(02^00)$\rightarrow $(01^10)$ transition of $CO_2$ for a gas mixture composition of $CO_2:N_2:H_2$ =30:50:20%. The corresponding optimum values for the reservoir pressure and area ratio are computed as functions of the resevoir temperature and presented graphically. Results are presented for a range of gas mixture compositions.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to American Institute of Aeronautics and Astronautics.
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Date Deposited: 28 Mar 2008
Last Modified: 27 Aug 2008 13:16
URI: http://eprints.iisc.ernet.in/id/eprint/13396

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