Abstract
An experimental study was made on the promotion of turbulent mixing of hot and cold airflows in a T-junction that simulated an HVAC unit for automobile A/C system. Delta wings were used as a mixing promoter, and the influence of its angle of attack on the thermal mixing and flow field were examined. In particular, production terms of the fluctuating velocity component in the vertical direction, which dominates the turbulent thermal mixing of two flows, were evaluated, and the influence of the angle of attack of wings on the turbulence promotion was examined in detail.
