Jia Q X, Zhao R Y, Xu W Q, Min Z
Year:
2000
Bibliographic info:
UK, Oxford, Elsevier, 2000, proceedings of Roomvent 2000, "Air Distribution in Rooms: Ventilation for Health and Sustainable Environment", held 9-12 July 2000, Reading, UK, Volume 2, pp 1201-1205

Features of natural wind and artificial airflow are related to human thermal sensation. Based on the existing records of natural wind and artificial air movement, their turbulent intensity of velocity fluctuation, energy spectra. probability distribution of velocity are compared and analyzed. The results show that the slope of the spectra of natural wind is different from that of artificial airflow that the spectra of natural wind in low frequency range are abundant, comparing with the spectra of artificial airflow, and that the probability distribution of natural wind is a skew and for artificial wind is roughly a Gaussian. Finally the possible reasons for those differences and the relationships between human thermal sensation and different air movements are initially discussed.