W. Dai, Q. Ouyang, Y.X. Zhu
Bibliographic info:
RoomVent 2004, 9th international conference in University of Coimbra - Portugal, 5-8th september 2004, pp 4, 6 Fig., 2 Tab., 4 Ref.

The fluctuating characteristics of airflow have impacts on the thermal comfort of people. Two kinds of mechanical airflows in indoor environment were tested and analyzed in the paper. Spectrum analysis, chaos analysis were used to study the rule of the fluctuating characteristics shifting of the mechanical airflows. The results show that the fluctuating characteristics of different kinds of mechanical winds are different. It is also found that the characteristic parameters of the mechanical airflow, such as power spectrum etc. change regularly with the distance from the fan supply terminal. The phenomenon is summarized and explained in the paper.