Abstract
This study aims to develop the high-accuracy analysis method of radiative heat transfer that can be used for the coupled simulation of convection and radiation. In this paper, calculated results are compared with those measured using a thermal manikin to quantitatively evaluate the validity of the method. The thermal manikin consists of 16 independently controlled parts for skin temperature and heat release and is situated in the center of an experimental room. Air is supplied from a porous floor carpet and flows out of the ceiling. Upward air stream seems to be uniform and of very small velocity. The thermal manikin is controlled under a thermally neutral mode. Skin temperature and heat release distributions of the thermal manikin are measured. Thermal environment around a human body model resembling the thermal manikin in shape and size is simulated by a coupled analysis of convection and radiation. CFD (Computational Fluid Dynamics) analyses are performed based on a low-Reynolds-number-type k-ε turbulence model. Simulated results are in good agreement with measured ones. Parametric studies are also carried out for investigating the influence of inflow velocity and emissivity of human body model on calculated results.
