Abstract
The effects of a moving human body on flow and contaminant transport inside an aircraft cabin were investigated. Experiments were performed in a one-tenth scale, water-based model. The flow field and contaminant transport were measured using the Particle Image Velocimetry (PIV) and Planar Laser-Induced Fluorescence (PLIF) techniques, respectively. Measurements were obtained with (ventilation case) and without (baseline case) the cabin environmental control system (ECS). The PIV measurements show strong intermittency in the instantaneous near-wake flow. A symmetric downwash flow was observed along the vertical centerline of the moving body in the baseline case. The evolution of this flow pattern is profoundly perturbed by the flow from the ECS. Furthermore, a contaminant originating from the moving body is observed to convect to higher vertical locations in the presence of ventilation. These experimental data were used to validate a Computational Fluid Dynamic (CFD) model. The CFD model can effectively capture the characteristic flow features and contaminant transport observed in the small-scale model.
Original language | English |
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Pages (from-to) | 2830-2839 |
Number of pages | 10 |
Journal | Atmospheric Environment |
Volume | 44 |
Issue number | 24 |
DOIs | |
Publication status | Published - Aug 2010 |
Keywords
- Aircraft cabin
- CFD
- Contaminant transport
- Human wake
- PIV
- PLIF
- Ventilation
ASJC Scopus subject areas
- General Environmental Science
- Atmospheric Science