Study of the Influence of Manikin Model Simplification on the Airflow Pattern and Temperature Field in Indoor Environment

摘要

As one of the most basic parameters, manikin body feature could be an important factor influencing the airflow and temperature fields in indoor environments. This study aims to improve the computational efficiency by optimising and simplifying manikin body features. A 3D scanned CSP with extremely detailed body features was employed, followed by two simplified CSP models with different approaches. One of the simplified models was rebuilt based on the skeleton of the 3D scanned model with very limited body features, while the other model was simplified by removing some of the features from the 3D scanned model. The findings indicated that the geometric difference of manikin body would have significant impact on the airflow patterns near manikin bodies, whilst it has very limited influence on the temperature field. Also, the difference of body features could significantly affect the development of thermal plume, which mainly reflected above the manikin head.