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- W2551904881 abstract "Airflow disturbances associated with buildings on the airfield may affect the operation of aircraft. This project, employing computational fluid dynamics (CFD) model, aims to study the turbulent wake after the wind flows over a hypothetical airport terminal and its potential impact on the low-level winds along the runway in the downwind region. Large-eddy simulation (LES) is used to calculate both the mean and fluctuating winds along the glide path. Three prevalent wind directions, which are at different incident angles to the airport terminal, are examined to illustrate how the building induces wind deficits over the runway. The LES results show that there are rather abrupt losses in headwind, hence lift force to the aircraft, along the glide path under certain condition. The maximum drop in mean wind speed can be as large as 10 m/s, greater than three times of the standard deviation of wind speed, and thus considered to be due to artificial effects and not natural wind fluctuations. This amount of wind deficit also exceeds the 7-knot (3.6 m/s) criterion proposed by Krus et al. (2003) in their study of buildings at the Amsterdam Airport Schiphol. Under this circumstance, the landing aircraft may experience abrupt wind changes while flying through the building wake region. Even though the LES might have over-estimated the wind deficit, this study provides insights into possible effects of building wake over an airfield and could serve as a useful reference for real case studies for the assurance of aviation safety." @default.
- W2551904881 created "2016-11-30" @default.
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- W2551904881 date "2009-01-01" @default.
- W2551904881 modified "2023-09-27" @default.
- W2551904881 title "LARGE-EDDY SIMULATION OF THE WIND FLOW ACROSS A TERMINAL BUILDING ON THE AIRFIELD" @default.
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- W2551904881 hasPublicationYear "2009" @default.
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