Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5473003 | Aerospace Science and Technology | 2017 | 8 Pages |
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.
Related Topics
Physical Sciences and Engineering
Engineering
Aerospace Engineering
Authors
Holger Grosshans, Robert-Zoltan Szász, Miltiadis V. Papalexandris,