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Development and Experimental Verification of a Computer Program for Predicting Temperature Distribution and Heat Transfer through Coated and Uncoated, Single or Multi-Glaze Window Systems.


AD851479

Publication Date 1969
Personal Author Korb, G. M.; Dayton, R. D.; Sommerville, D.
Page Count 201
Abstract The severe thermal environment of future hypervelocity aerospace vehicles will place rigorous demands on direct vision window system. At the high temperatures encountered, heat will be transferred within window materials by both conduction and radiation. This report describes the development and experimental verification of a computer program for predicting the temperature distribution and heat transfer through coated and uncoated, single or multiple glaze window systems. The heat balance equations in the computer program account for emission, attentuation, and absorption of radiant energy within the glaze. Reflection and transmission of glaze surfaces having multilayer, thin-film coatings are computed. Window temperatures and heat flux can be predicted for transient conditions of individual and/or combined convective and radiative heating. The computer program was experimentally verified with heat transfer tests in which specimens of various glaze materials and thicknesses were used. Typical aerospace reflection and antireflection coatings were employed on one and/or both surfaces of the test specimens. The work was performed in three phases. In the first phase the research was applicable to single uncoated glazes. In the second phase the scope was expanded to include coated single glazes, and in the third phase coated and uncoated multiple glazes were investigated. Good agreement between the analytical and experimental results was obtained. The computer program is written in FORTRAN IV language for the IBM 7094 digital computer. (Author)
Keywords
  • Hypersonic aircraft
  • Transparent panels
  • Heat transfer
  • Windshields
  • Computer programming
  • Manned spacecraft
  • Coatings
  • Aerodynamic heating
Source Agency
  • Non Paid Delimited ADS
NTIS Subject Category
  • 46 - Physics
  • 71D - Ceramics, Refractories, & Glass
  • 62A - Computer Hardware
Corporate Authors Midwest Research Inst Kansas City MO
Document Type Technical Report
Title Note Final technical rept. 15 Jun 66-15 Feb 69.
NTIS Issue Number 197701
Contract Number
  • AF 33(615)-5164
Development and Experimental Verification of a Computer Program for Predicting Temperature Distribution and Heat Transfer through Coated and Uncoated, Single or Multi-Glaze Window Systems.
Development and Experimental Verification of a Computer Program for Predicting Temperature Distribution and Heat Transfer through Coated and Uncoated, Single or Multi-Glaze Window Systems.
AD851479

  • Hypersonic aircraft
  • Transparent panels
  • Heat transfer
  • Windshields
  • Computer programming
  • Manned spacecraft
  • Coatings
  • Aerodynamic heating
  • Non Paid Delimited ADS
  • 46 - Physics
  • 71D - Ceramics, Refractories, & Glass
  • 62A - Computer Hardware
  • AF 33(615)-5164
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