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Validation Process for LEWICE Coupled by Use of a Navier-Stokes SolverA research project is underway at NASA Glenn to produce computer software that can accurately predict ice growth for many meteorological conditions for any aircraft surface. This report will present results from the latest LEWICE release, version 3.5. This program differs from previous releases in its ability to model mixed phase and ice crystal conditions such as those encountered inside an engine. It also has expanded capability to use structured grids and a new capability to use results from unstructured grid flow solvers. An extensive comparison of the results in a quantifiable manner against the database of ice shapes that have been generated in the NASA Glenn Icing Research Tunnel (IRT) has also been performed. This paper will show the differences in ice shape between LEWICE 3.5 and experimental data. In addition, comparisons will be made between the lift and drag calculated on the ice shapes from experiment and those produced by LEWICE. This report will also provide a description of both programs. Quantitative geometric comparisons are shown for horn height, horn angle, icing limit, area and leading edge thickness. Quantitative comparisons of calculated lift and drag will also be shown. The results show that the predicted results are within the accuracy limits of the experimental data for the majority of cases.
Document ID
20170000242
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Wright, William B. (Vantage Partners, LLC Cleveland, OH, United States)
Date Acquired
January 4, 2017
Publication Date
June 13, 2016
Subject Category
Aeronautics (General)
Computer Programming And Software
Report/Patent Number
GRC-E-DAA-TN32540
Meeting Information
Meeting: AIAA Aviation Forum 2016
Location: Washington, DC
Country: United States
Start Date: June 13, 2016
End Date: June 17, 2016
Sponsors: American Inst. of Aeronautics and Astronautics
Funding Number(s)
CONTRACT_GRANT: NNC12BA01B
WBS: WBS 081876.02.03.08.02.01
Distribution Limits
Public
Copyright
Public Use Permitted.
Technical Review
Single Expert

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