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  • 1
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    System optimization of gasdynamic lasers, computer program user's manual (1978)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The user's manual for a computer program that performs system optimization of gasdynamic lasers is provided. Detailed input/output formats are CDC 7600/6600 computers using a dialect of FORTRAN. Sample input/output data are provided to verify correct program operation along with a program listing.
    Keywords: LASERS AND MASERS
    Type: NASA-TM-73193 , A-6865
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    The CO2 gasdynamic laser as a high-intensity radiation facility (1975)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The basic theory of CO2 gasdynamic lasers is discussed and related to the design of the Ames laser, which is described in detail. Results of the experimental calibration of the laser are reported and compared with theoretical predictions, and the agreement is excellent. Finally, several applications of the laser as a radiation source for materials testing, both with and without air flow, are described.
    Keywords: LASERS AND MASERS
    Type: AIAA PAPER 75-177 , American Institute of Aeronautics and Astronautics, Aerospace Sciences Meeting; Jan 20, 1975 - Jan 22, 1975; Pasadena, CA
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Numerical optimization of gasdynamic lasers (1976)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: A sophisticated numerical optimization procedure has been coupled to a detailed theoretical model of the carbon dioxide gasdynamic laser (GDL) for the purpose of systematically evaluating the performance of these systems. The integrated model was used to predict the performance of a wide variety of combustion-driven gasdynamic lasers and was then used to maximize the theoretical available specific energy of these lasers. Up to six design variables and three nonlinear constraints were used in these optimizations, although the method is not limited to this number. Results are presented to show the performance of typical lasers before and after optimization. Improvements approaching a factor of two in the available specific energy are found, suggesting that numerical optimization techniques are valuable in improving the design of gasdynamic lasers.
    Keywords: LASERS AND MASERS
    Type: International Symposium on Gasdynamic and chemical lasers; Oct 11, 1976 - Oct 15, 1976; Cologne; Germany
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Preheated, combustion-driven gasdynamic lasers (1976)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The effect of preheated nitrogen on the available laser specific energy is examined for two classes of combustion-driven gasdynamic lasers (GDLs). The analysis combines a nonequilibrium model of the relevant GDL processes with a simplified nondissociating combustion model handling a variety of candidate GDL fuels. For a more comprehensive evaluation of the capabilities of preheating, an optimization routine is added to the combined laser/combustion models. The effectiveness of preheating to enhance laser specific energy is demonstrated, although preheating may impose unacceptable hardware requirements. The application of numerical optimization techniques appears to offer a means to improve laser design.
    Keywords: LASERS AND MASERS
    Type: AIAA PAPER 76-58 , Aerospace Sciences Meeting; Jan 26, 1976 - Jan 28, 1976; Washington, DC
    Format: text
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    NASA TECHNICAL REPORTS
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