Influence of heat source intensity on performance of a new personalized air supply method

In order to improve the local microenvironment of human bodies in industrial buildings with strong heat sources, a new personalized air supply method based on attachment effect is proposed. In this paper, numerical simulation method is used to study the influence of heat source intensity on the flow field characteristics and heat transfer intensity of human surface under the action of the air supply method. The results show that only when the heat source intensity reaches a certain degree, the heat plume of the heat source will have a significant impact on the human microenvironment flow field. When the Grashof number (Gr) is 1010 and the air supply speed of the air outlet is 0.3 m/s, the convective heat transfer ratio of human surface is only 20%.