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  • 1
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    Users manual for the improved NASA Lewis ice accretion code LEWICE 1.6 (1995)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: This report is intended as an update/replacement to NASA CR 185129 'User's Manual for the NASALewis Ice Accretion Prediction Code (LEWICE)' and as an update to NASA CR 195387 'Update to the NASA Lewis Ice Accretion Code LEWICE'. In addition to describing the changes specifically made for this version, information from previous manuals will be duplicated so that the user will not need three manuals to use this code.
    Keywords: AIR TRANSPORTATION AND SAFETY
    Type: NASA-CR-198355 , E-9729 , NAS 1.26:198355
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    LEWICE 2.2 Capabilities and Thermal Validation (2002)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: A computational model of bleed air anti-icing and electrothermal de-icing have been added to the LEWICE 2.0 software by integrating the capabilities of two previous programs, ANTICE and LEWICE/ Thermal. This combined model has been released as LEWICE version 2.2. Several advancements have also been added to the previous capabilities of each module. This report will present the capabilities of the software package and provide results for both bleed air and electrothermal cases. A comprehensive validation effort has also been performed to compare the predictions to an existing electrothermal database. A quantitative comparison shows that for deicing cases, the average difference is 9.4 F (26%) compared to 3 F for the experimental data while for evaporative cases the average difference is 2 F (32%) compared to an experimental error of 4 F.
    Keywords: Aerodynamics; Computer Programming and Software; Fluid Mechanics and Thermodynamics
    Type: AIAA Paper 2002-0383 , E-13186 , Aerospace Sciences Meeting and Exhibit; Jan 08, 2002 - Jan 11, 2002; Reno, NV; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Advancements in the LEWICE Ice Accretion Model (1993)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: Recent evidence has shown that the NASA/Lewis Ice Accretion Model, LEWICE, does not predict accurate ice shapes for certain glaze ice conditions. This paper will present the methodology used to make a first attempt at improving the ice accretion prediction in these regimes. Importance is given to the correlations for heat transfer coefficient and ice density, as well as runback flow, selection of the transition point, flow field resolution, and droplet trajectory models. Further improvements and refinement of these modules will be performed once tests in NASA's Icing Research Tunnel, scheduled for 1993, are completed.
    Keywords: AIR TRANSPORTATION AND SAFETY
    Type: AIAA PAPER 93-0171 , AIAA, Aerospace Sciences Meeting and Exhibit; Jan 11, 1993 - Jan 14, 1993; Reno, NV; United States|; 18 p.
    Format: text
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    NASA TECHNICAL REPORTS
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