期刊
PROGRESS IN AEROSPACE SCIENCES
卷 61, 期 -, 页码 1-25出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.paerosci.2013.03.001
关键词
Atmospheric phenomena; Flow field; Modeling; UAV; Flight endurance
资金
- Aerospace & Robotic Controls Laboratory researchers
- AsasF group
- Portuguese Air Force Academy
- United States Air Force by Financiamento pluri-anual of the FEUP ISR Porto RD unit [FA 8650-07-2-3744]
- FCT (Foundation for Science and Technology) [SFRH/BD/40764/2007]
- Fundação para a Ciência e a Tecnologia [SFRH/BD/40764/2007] Funding Source: FCT
We present a survey of atmospheric flow field phenomena models. The studied models are selected for their potential use toward extended aircraft endurance. This work describes several flow field phenomena, i.e., air flow currents and flow velocity variations. In particular, we discuss wind shear, thermal updrafts, and gusts. We study several wind shear models, such as the Surface, Layer, and Ridge Wind Shear models, comparing their characteristics. We also describe and compare thermal updraft models, such as the Chimney and the Bubble Thermal models. To close, we review different gust models. Throughout this work, we studied several existing models, but we also introduce new ones and improved versions of existing ones. The Bubble Thermal, Layer Wind Shear, and the Ridge Wind Shear models are examples of the new models presented. Furthermore, we present the Chimney Thermal model improvements, which take into account the phenomenon interaction with the prevailing winds. (C) 2013 Elsevier Ltd. All rights reserved.
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