Research on Air Supply Methods of a Typical Commercial Flight Cockpit Ventilation System
To investigate the impact of ventilation system air supply methods on air quality in the cockpit of a commercial aircraft,this study employs the Computational Fluid Dynamics(CFD)method to develop a numerical calculation model tailored to the Boeing 737 aircraft cockpit.The research prioritizes contrasting flow field structure characteristics within the cockpit across various air supply modes,analyzing the fresh airflow,and quantitatively evaluating air quality,taking into account pollutant removal efficiency and air age within the passenger breathing zone.Results suggest that windshield inlets may decelerate the airflow rate within the breathing zone,while the personal vent markedly enhance air quality in the passenger breathing zone;moreover,periodic signal air supply technology can effectively elevate air purification performance.In comparison with constant signals,the pollutant removal rate raises by 7.5%,and the mean air age is reduced by 7.39%.
Commercial aircraft cockpitPeriodic signal air supplynumerical simulationair pollutants
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