期刊
ADVANCES IN COLLOID AND INTERFACE SCIENCE
卷 256, 期 -, 页码 23-47出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cis.2018.05.005
关键词
Drop impact; Splash; Water film; Multiphase flow; Airfoil
资金
- German Alexander von Humboldt (AvH) Foundation [1190117]
- National Natural Science Foundation of China [11702014]
- Beijing Natural Science Foundation [3184055]
- Top Talent Plan of Beihang University
- AvH
Drop impact on an airfoil surface takes place in drop-laden two-phase flow conditions such as rain and icing, which are encountered by wind turbines or airplanes. This phenomenon is characterized by complex nonlinear interactions that manifest rich flow physics and pose unique modeling challenges. In this article, the state of the art of the research about drop impact on airfoil surface in the natural drop-laden two-phase flow environment is presented. The potential flow physics, hazards, characteristic parameters, droplet trajectory calculation, drop impact dynamics and effects are discussed. The most key points in establishing the governing equations for a drop-laden flow lie in the modeling of raindrop splash and water film. The various factors affecting the drop impact dynamics and the effects of drop impact on airfoil aerodynamic performance are summarized. Finally, the principle challenges and future research directions in the field as well as some promising measures to deal with the adverse effects of drop-laden flows on airfoil performance are proposed. (C) 2018 Elsevier B.V. All rights reserved.
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