Abstract
To analyze the correlation between the speed of railway vehicle and the fresh air inlet of air conditioning, a numerical simulation model of evaporator chamber was established in this paper, and to simulate the airflow organization of fresh air using CFX software. As a result, the fresh air volume decrease with the increase of railway vehicle speed, and the simulation results show that the vertical grille could lead more fresh air volume to the evaporator chamber of air conditioning than horizontal grille as the railway vehicle operates at high speed.
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