Effect of thermal manikin shape on thermal comfort parameters prediction uncertainties: a numerical study

Abstract The main goal of the study is to evaluate effect thermal manikin shape on uncertainty comfort parameters CFD prediction. Numerical simulation airflow and heat transfer was carried out in a model room with displacement ventilation where standing heated located (test by P.V. Nielsen et al.). modelling using three shapes: detailed one (close human body shape), simplified (block) one, single-parallelepiped shape. 3D calculations were ANSYS Fluent package. Turbulence performed Reynolds-Averaged Navier-Stokes (RANS) approach standard k - ε turbulence model. uncertainties CFD-predicted draught rating ( DR ), percentage dissatisfied caused vertical air temperature difference PD predicted mean vote PMV ) PPD are discussed. result paper quantitative evaluation changes local velocity, due simplification. It found that simplifications suitable if predict integral parameters.