Abstract: The wind deflector of indoor unit of split-type air conditioner was selected as the research object, and the CFD software was used to numerically simulate the wind deflector in three kinds of cross-sectional shape. The flow field inside the indoor unit of air conditioner was acquired, and the influence of the flow field at the outside by wind deflector with difference section was analyzed. The theoretical basis was provided for the optimization design of the wind deflector. The performance of air volume, noise and condensation of the indoor unit of air conditioning at low revolution speed and the 55° opened angle was better by use the wind deflector with airfoil section through experimental verification.

Key words: Wind deflector, CFD, Air volume, Noise, Condensation