Almost 2 billion people travel aboard commercial airlines every year. In order to maintain comfort in the cabin, effort must be made to analyze the thermal comfort conditions. With CFD software, a typical simulation full-sized twin-aisle aircraft cabin with traditional form of air supplying method is analyzed. In the simulation, the RANS and LES model are verified to prove their feasibility in cabin airflow simulation. The temperature and air velocity distribution on the plane of human head and foot are analyzed. We also use some indexes of ASHRAE Standard 55-2004 to evaluate comfort of the cabin, such as PMV-PPD and DR. Due to the complexity of the internal structure of the cabin, there will be areas of local turbulence which affects human comfort.
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