Hot air supply anti/de-icing test technology in large-scale icing wind tunnel
The establishment of hot air supply anti/de-icing test system in icing wind tunnel is the main means to carry out hot air anti/de-icing test.In order to meet the requirements of anti/de-icing system design and icing airworthiness certification for a series of domestic aircrafts,China Aerodynamics Research and Development Center(CARDC)carried out research on the hot air supply anti/de-icing test technology based on the 3 m × 2 m large-scale icing wind tunnel,and independently developed the hot air supply anti/de-icing system.The digital valve flow control unit,electric heater unit,flow control unit and other test systems were designed and developed,and the test process and method were established.The perfect multi-channel hot sir supply anti/de-icing test technology was constructed,moreover,the dual-channel hot sir supply anti/de-icing test of a small aero-engine inlet was carried out.The test results indicated that the hot air supply anti/de-icing test system can simulate the hot air from the real compressor,allowing for multi-channel hot air supply test.The temperature control accuracy can reach±1 ℃ and the flow control accuracy can reach±1％.Meanwhile,it can provide a strong support for the anti/de-icing test system design and airworthiness certification of aircraft in China.
large-scale icing wind tunnelmulti-channel hot air supplyanti/de-icing test technologyaircraftairworthiness certification
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