期刊
INDOOR AND BUILT ENVIRONMENT
卷 26, 期 9, 页码 1185-1197出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/1420326X16653500
关键词
Thermal plume; Microenvironment; Computational thermal manikins; Simplification approaches; CFD
类别
资金
- National Basic Research Program (973) of China [2012CB720100]
- Australian Research Council [LP110100140]
- Natural Science Foundation of China [21277080]
- Australian Research Council [LP110100140] Funding Source: Australian Research Council
Simplified computational thermal manikins are beneficial to the computational efficiency of computational fluid dynamics simulations. However, the criterion of how to simplify a computational thermal manikin is still absent. In this study, three simplified computational thermal manikins (CTMs 2, 3 and 4) were rebuilt based on a detailed 3D scanned manikin (CTM 1) using different simplification approaches. Computational fluid dynamics computations of the human thermal plume in a quiescent indoor environment were conducted. The predicted airflow field using CTM 1 agreed well with the experimental observations from the literature. Although the simplified computational thermal manikins did not significantly affect the airflow predictions in the bulk regions, they strongly influenced the predicted airflow patterns near the computational thermal manikins. The predictive error of the computational thermal manikin was strongly related to the simplification approach. The computational thermal manikins generated from the surface-smoothing approach (CTM 2) was very close to CTM 1, while the required mesh elements for a stable numerical solution dropped by over 75%. Comparatively, the predictive errors of CTMs 3 and 4 were considerable in the near-body regions. This study has illustrated the importance of keeping the key body features when simplifying a computational thermal manikin. The surface-smoothing-based simplification method was shown to be a promising approach.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据