Numerical simulation on airflow in plenum of underfloor air supply and experiment on characteristics of plenum's outlets

被引：0

作者：

Kong, Qiongxiang ^{[1
]}

Yu, Bingfeng ^{[1
]}

Pan, Zhen ^{[1
]}

机构：

[1] School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China

来源：

Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University | 2005年 / 39卷 / 05期

关键词：

Computational fluid dynamics - Computer simulation - Floors - Flow of fluids - Velocity;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The airflow in a plenum of underfloor air supply was simulated by computational fluid dynamics (CFD) program, and full-scale experiments were conducted to validate the calculation results. The standard k-Ε model and the grid size at 0.1 m were used in the CFD program. The results show that the predicted velocity profiles of outlets in the plenum were in good agreement with the measured velocity profiles. Moreover, with the plenum in 170 mm height, the velocity profiles of outlets and their air flow ratio were influenced by inlet jet. In addition, according to outlet's location on the underfloor, some of the velocity profiles of outlets were uniform, and some were not as the smallest velocity was 10% of the biggest velocity in an outlet. The above characteristics of the plenum's outlets could be analyzed by the plenum airflow patterns obtained from CFD simulation.

引用

页码：531 / 535