GLTRS--Glenn
TITLE AND SUBTITLE:
User Manual for the NASA Glenn Ice Accretion Code LEWICE Version 2.0

AUTHOR(S):
William B. Wright

REPORT DATE:
September 1999

FUNDING NUMBERS:
WU-548-20-23-00
NAS3-98008

PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES):
Dynacs Engineering Company, Inc.
2001 Aerospace Parkway
Brook Park, Ohio 44142

PERFORMING ORGANIZATION REPORT NUMBER:
E-11949

SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES):
National Aeronautics and Space Administration
John H. Glenn Research Center at Lewis Field
Cleveland, Ohio 44135-3191

REPORT TYPE AND DATES COVERED:
Final Contractor Report

SPONSORING/MONITORING AGENCY REPORT NUMBER:
NASA CR-1999-209409

SUPPLEMENTARY NOTES:
Project Manager, Thomas Bond, Turbomachinery and Propulsion Systems Division, NASA Glenn Research Center, organization code 5840, (216) 433-3900.

ABSTRACT:
A research project is underway at NASA Glenn to produce a computer code which can accurately predict ice growth under a wide range of meteorological conditions for any aircraft surface. This report will present a description of the code inputs and outputs from version 2.0 of this code, which is called LEWICE. This version differs from previous releases due to its robustness and its ability to reproduce results accurately for different spacing and time step criteria across comput-
ing platform. It also differs in the extensive effort undertaken to compare the results against the database of ice shapes which have been generated in the NASA Glenn Icing Research Tunnel (IRT) 1. This report will only describe the features of the code related to the use of the program. The report will not describe the inner workings of the code or the physical models used. This information is available in the form of several unpublished documents which will be collectively referred to as a Programmers Manual for LEWICE 2 in this report. These reports are intended as an update/replacement for all previous user manuals of LEWICE. In addition to describing the changes and improvements made for this version, information from previous manuals may be duplicated so that the user will not need to consult previous manuals to use this code.

SUBJECT TERMS:
Icing

NUMBER OF PAGES:
182

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