Effect of wind velocities and wind directions on forced convective heat transfer coefficients for human body by using thermal manikin

Abstract

The objective of this paper is to clarify the effect of wind velocities and wind directions on forced convective heat transfer coefficients for human body. A series of experiments using a standing thermal manikin was carried out under the combining conditions of wind velocities (0.09- 4.3m/s) and wind directions (0°, 45°, 90°, 135° and 180°). Nude and five clothing ensembles were tested. The results show that the whole-body forced convective heat transfer coefficients for clothing ensembles depend on wind directions. Correction coefficients with regards to wind directions for the whole-body forced convective heat transfer coefficients for clothed body were proposed.