Abstract
Transmission of airborne contaminants in aircraft cabins is a concern, especially after the outbreak of Severe Acute Respiratory Syndrome in 2003 and H1N1, a pandemic in 2009. In an aircraft cabin, the longitudinal flow can intensify the spread of airborne contaminants, and current design is to minimize it. This study developed a practical method to measure the longitudinal flow rate in a functional aircraft cabin by the tracer gas method and validated it with the flow rate measured by using ultrasonic anemometers. Measurements found that the longitudinal flow was significant. This investigation identified the mechanism causing the longitudinal flow and proposed to adjust the inlet flow rate along the aircraft cabin according to its outlet pressure to control the longitudinal flow. In addition, this study has analyzed the characteristic of the longitudinal flow with and without heated manikins.
Published Version
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