Validation of NASA Thermal Ice Protection Computer Codes Part 2 - LEWICE/Thermal
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Validation of NASA Thermal Ice Protection Computer Codes Part 2 - LEWICE/Thermal

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    Research Paper
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    United States
  • Abstract:
    The Icing Technology Branch at NASA Lewis has been involved in an effort to validate two thermal ice protection codes developed at the NASA Lewis Research Center: LEWICE/Thermal 1 (electrothermal de-icing and anti-icing), and ANTICE 2 (hot gas and electrothermal anti-icing). The thermal code validation effort was designated a priority during a 1994 peer review of the NASA Lewis icing program and was implemented as a cooperative effort with industry. During April 1996, the first of a series of experimental validation tests was conducted in the NASA Lewis Icing Research Tunnel (IRT). The purpose of this test was to acquire experimental data to validate the electrothermal predictive capabilities of both LEWICE/Thermal and ANTICE. A heavily instrumented test article was designed and fabricated to simulate electrothermal de-icing and anti-icing modes of operation. Thermal measurements were then obtained over a range of test conditions for comparison with analytical predictions. This paper will present the comparison between the experimental data and the most recent version of the LEWICE/Thermal computer code, LEWICE 1.6/ Thermal (alpha version). The paper will also provide a description of the model used in this code and the improvements which have been made to this code since its creation in 1991. Several capabilities have been added to this code especially within the last year in order to better model the phenomena observed in the April 1996 test. Prepared ca. 1996.
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