CJ2 Icing Effects Simulator. Delivery Order 0019: Development of an Icing Effects Simulation for a Typical Business Jet Configuration

• Main Author: Barnhart, Billy
• Other Authors: BIHRLE APPLIED RESEARCH INC JERICHO NY
• Format: Text
• Language: English
• Published: 2007
• Subjects: Civilian Aircraft; Snow; Ice and Permafrost; *MATHEMATICAL MODELS; *COMMERCIAL AIRCRAFT; *ICE; *WIND TUNNEL TESTS; ICE FORMATION; WINGS; PASSENGER AIRCRAFT; FLIGHT SIMULATION; REYNOLDS NUMBER; *BUSINESS JETS; *ICING EFFECTS; CERTIFICATION TESTING; PE62201F; WU0A; Ice; permafrost
• Online Access: http://www.dtic.mil/docs/citations/ADA474414; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA474414

In this effort, Cessna Aircraft Company and Bihrle Applied Research teamed to develop and validate flight simulation models of a typical business jet incorporating the effects of various forms of ice. The ice conditions considered were: - Icing protection system failure ice - Inter-cycle (roughness) ice - Run-back ice. The study entailed wind tunnel tests of different scale wing panels with a wide range of Reynolds numbers to look at how ice effects scaled from a low-speed subscale model to the fullscale airplane. Complete airplane tests were then performed on a 1/12-scale model of the business jet to collect static and dynamic data required for development of a simulation model of the airplane with and without the various ice configurations. The wind tunnel data, properly adjusted for Reynolds number corrections, was used to construct simulation math models of the clean and iced airplane. In order to validate the models, a flight test program was undertaken to collect flight data the ice configurations. The math models were then incorporated into NASA's Ice Contamination Effects Flight Training Device and evaluated by the airframe manufacturer's test pilots. The simulator showed very good agreement with flight results for each of the ice conditions.