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

Grosshans, Holger LU ; Szász, Robert Zoltan LU and Papalexandris, Miltiadis V. (2017) In Aerospace Science and Technology 64. p.31-38
Abstract

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.

Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Aerospace, Electrostatics, Particulate flows, Safety
in
Aerospace Science and Technology
volume
64
pages
8 pages
publisher
Elsevier Masson SAS
external identifiers
  • scopus:85010756167
  • wos:000397361000004
ISSN
1270-9638
DOI
10.1016/j.ast.2017.01.014
language
English
LU publication?
yes
id
03945451-6c9a-4d46-8aa9-fd2ca5acb59c
date added to LUP
2017-02-14 08:30:20
date last changed
2018-01-28 04:27:33
@article{03945451-6c9a-4d46-8aa9-fd2ca5acb59c,
  abstract     = {<p>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.</p>},
  author       = {Grosshans, Holger and Szász, Robert Zoltan and Papalexandris, Miltiadis V.},
  issn         = {1270-9638},
  keyword      = {Aerospace,Electrostatics,Particulate flows,Safety},
  language     = {eng},
  month        = {05},
  pages        = {31--38},
  publisher    = {Elsevier Masson SAS},
  series       = {Aerospace Science and Technology},
  title        = {Modeling the electrostatic charging of a helicopter during hovering in dusty atmosphere},
  url          = {http://dx.doi.org/10.1016/j.ast.2017.01.014},
  volume       = {64},
  year         = {2017},
}