Research on Separation and Emission Reduction of Regional Airliner Based on Wake Encounter Response Model

To ensure the safety of aircraft operation, current regional passenger maintains a large distance from preceding in actual which result reducing operation efficiency airports and airspace, increasing pollutant emissions. address these issues, this paper, two types are selected CRJ-900 encounters trailing wake vortices A380 front. An improved strip model is developed to build overall response encounter value. First, longitudinal lateral different flight stages analyzed. Second, we calculate critical separation its impact on air transport efficiency. Third, use LTO measure reduction fuel consumption The results demonstrated that medium-sized has potential reduce when following super-heavy aircraft. In terms calculated by index, operating airspace could be effectively improved, allowing emissions during take-off landing. During takeoff, level flight, landing phase, summarized as follows: 13km away A380, maximum lift variation 11334N, 8157N, 7366N; rolling moment 43836N•M, 35274 N•M, 28487 N•M; value coefficient (RMC) 0.0171, 0.0160, 0.0130; RMC 0.031, safe for 11960m, 1040m shorter than existing separation; 0.05, each stage 10083m, 2917m compared with threshold 0.07, 9021m, 3979m between 0.031-0.07, can reduced 7.9%–12.8%, emission 9.1%–12.8%.