「涼しさ」を感じる気流に関する屋外での実測とその解析

概要

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This paper describes the relationship between 'suzusisa1 sensation and the variation of air velocity obtained from the field measurement with subjective experiment. A female adult participated in the experiment as the subject. 'Suzusisa' sensation is a thermal sensation which we may have in a hot and humid environment with some breeze; 'suzusisa' is a Japanese word which exactly indicates this sensation. We found that the subject does not necessarily feel 'suzusisa' sensation as she is exposed to an environment in which the air movement is strong. It is possible to feel 'suzusisa' sensation even with a relatively small air velocity after she is exposed long enough to an environment in which the air movement is still. According to the Fourier analysis, the spectra of the air velocity during the periods in which she had 'suzusisa' sensation is larger than that during the periods in which she did not. Normalized air velocity obtained from the spectra, the amplitude of the normalized air velocity during the period in which the subject had 'suzusisa' sensation is twice that in which she did not. The characteristics of the wave of the normalized air velocity is to increase suddenly and then decrease exponentially; this is considered essential to provide with 'suzusisa1 sensation.
社団法人日本建築学会の論文
1999-09-30