Simulation of aircraft wake vortices during landing with decay enhancing obstacles

A. Stephan, F. Holzäpfel, T. Misaka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Wake-vortex evolution during landing of a long range aircraft is investigated in a turbulent en- vironment. The simulations cover final approach, touchdown on the tarmac, and the evolution of the wake after touchdown. An ambient turbulent crosswind and headwind field is generated in a pre-simulation. The wake is initialized using a RANS-LES coupling approach. The aircraft in high-lift configuration with deployed aps and slats is swept through a ground fixed domain. The fuselage turbulence is modeled as white noise. The further development of the vortical wake is investigated by large-eddy simulation until final decay. After touchdown wake vortices are subjected to strong three-dimensional deformations and linkings with the ground. The down- wind vortex is strongly advected with the wind and decays quickly. End effects, appear after touchdown and propagate along the wake vortices against the fight direction. They lead to a non-uniform circulation decay of the rolled- up wake vortices. Additionally the effect of a plate line installed in front of the runway is studied with this method. The plates cause disturbances of the vortices propagating to either side and interacting with the end effects. The plate line further accelerates the vortex decay.

Original languageEnglish
Title of host publication29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014
PublisherInternational Council of the Aeronautical Sciences
ISBN (Electronic)3932182804
Publication statusPublished - 2014 Jan 1
Event29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014 - St. Petersburg, Russian Federation
Duration: 2014 Sep 72014 Sep 12

Publication series

Name29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014

Other

Other29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014
CountryRussian Federation
CitySt. Petersburg
Period14/9/714/9/12

Keywords

  • Landing
  • Plate line
  • RANS-LES coupling
  • Turbulence
  • Wake vortex

ASJC Scopus subject areas

  • Aerospace Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Materials Science(all)

Fingerprint Dive into the research topics of 'Simulation of aircraft wake vortices during landing with decay enhancing obstacles'. Together they form a unique fingerprint.

Cite this