Computational modeling of time resolved exposure level analysis of a heated breathing manikin with rotation in a room

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• 作者：S.A. Keshavarz^a ; M. Salmanzadeh^a ; G. Ahmadi^b ;
• 关键词：Computational Fluid Dynamic (CFD) ; Indoor Air Quality (IAQ) ; Displacement ventilation ; Thermal plume ; Mixing ventilation ; Rotating manikin
• 刊名：Journal of Aerosol Science
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：103
• 期：Complete
• 页码：117-131
• 全文大小：1926 K
• 卷排序：103

文摘

The buoyancy driven thermal plume near a sitting, breathing heated manikin with rotational motion was studied. Particular attention was given to the effect of the thermal plume on particle concentrations in the breathing zone. An Eulerian-Lagrangian approach was used for simulating the airflow field and trajectories of particles. The particle concentrations in the breathing zone were evaluated and compared with the available experimental data. Thermal plume generated by the body can lead to a high concentration of suspended particles in the breathing zone. The rotational motion of the manikin distorts the thermal plume and reduces the particle concentration in the breathing zone.