Modeling the electrostatic charging of a helicopter during hovering in dusty atmosphere

Grosshans Holger; Szasz Robert-Zoltan; Papalexandris Miltiadis V.

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Modeling the electrostatic charging of a helicopter during hovering in dusty atmosphere

机译：模拟在尘土飞扬的悬停过程中直升机的静电荷

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A helicopter flying through an atmosphere containing particulates may accumulate high electrostatic charges which can challenge its operational safety. In this paper we elaborate and validate a triboelectric charging model to predict the electrification experienced by a helicopter while hovering in dusty air. We employed Large Eddy simulations to describe the turbulent structures inherent in the flow around the rotorcraft. The dust particles were tracked individually in a Lagrangian framework. A model accounting for the triboelectric charge transfer when a particle hits the helicopter was introduced. The results demonstrate the accuracy of the proposed approach and allow a detailed analysis of the location of the charge accumulation. (C) 2017 Elsevier Masson SAS. All rights reserved.

机译：直升飞机在含有微粒的大气中飞行时，可能会积聚大量静电，这可能会挑战其操作安全性。在本文中，我们详细阐述并验证了摩擦带电模型，以预测直升机在尘土飞扬的空中盘旋时的电气化。我们采用大涡模拟来描述旋翼飞机周围流动固有的湍流结构。在拉格朗日框架中分别跟踪灰尘颗粒。引入了一个模型，该模型解释了当粒子撞击直升机时摩擦电荷的转移。结果证明了所提出方法的准确性，并允许对电荷积累的位置进行详细分析。（C）2017 Elsevier Masson SAS。版权所有。

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来源
《Aerospace science and technology》 |2017年第5期|31-38|共8页
作者
Grosshans Holger; Szasz Robert-Zoltan; Papalexandris Miltiadis V.;
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作者单位

Catholic Univ Louvain, Inst Mech, Mat & Civil Engn, B-1348 Louvain, Belgium;

Lund Univ, Div Fluid Mech, Box 118, S-22100 Lund, Sweden;

Catholic Univ Louvain, Inst Mech, Mat & Civil Engn, B-1348 Louvain, Belgium;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Particulate flows; Aerospace; Electrostatics; Safety;

机译：颗粒流;航空航天;静电;安全性;

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Modeling the electrostatic charging of a helicopter during hovering in dusty atmosphere

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