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Experimental and numerical study of ground vortex interaction in an air-intake

Secãreanu, Andrei LU ; Moroianur, Dragos; Karlsson, Arne and Fuchs, Laszlo LU (2005) 43rd AIAA Aerospace Sciences Meeting and Exhibit In 43rd AIAA Aerospace Sciences Meeting and Exhibit - Meeting Papers p.4645-4654
Abstract
The airflow field around air-intake related geometries has been investigated experimentally and numerically. The configuration of the experimental set-up is used to model a jet engine running near the ground. The experiments have been carried out using both PIV and LDA techniques in order to obtain the mean and fluctuating velocity field as well as the low speed frequencies related to the system of ground vortices. The LDA data provided frequency data that cannot be obtained from conventional PIV measurements. Additionally, flow visualization, using smoke and different seeding particles have been performed to obtain qualitative information about the flow structures and the ground vortices. Large Eddy Simulation (LES) has been used to... (More)
The airflow field around air-intake related geometries has been investigated experimentally and numerically. The configuration of the experimental set-up is used to model a jet engine running near the ground. The experiments have been carried out using both PIV and LDA techniques in order to obtain the mean and fluctuating velocity field as well as the low speed frequencies related to the system of ground vortices. The LDA data provided frequency data that cannot be obtained from conventional PIV measurements. Additionally, flow visualization, using smoke and different seeding particles have been performed to obtain qualitative information about the flow structures and the ground vortices. Large Eddy Simulation (LES) has been used to study, quantitatively and qualitatively, the flow field and the dynamics of the vortex structures. A comparison of the results in terms of the mean velocity field shows very good agreement between the experimental and the LES results. The computed solution of the flow field is used also to estimate the ingestion of particles into the air-intake. This study proves that small particles can be ingested into the jet engine. The limiting particle size depends on the flow conditions and the distance of the air-intake from the ground as well as its inclination relative to the ground. Copyright (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Large eddy simulation (LES), Ground vortex interaction, Air-intake, Vortex structure
in
43rd AIAA Aerospace Sciences Meeting and Exhibit - Meeting Papers
pages
4645 - 4654
publisher
American Institute of Aeronautics and Astronautics
conference name
43rd AIAA Aerospace Sciences Meeting and Exhibit
external identifiers
  • scopus:30744464124
language
English
LU publication?
yes
id
fe989b7a-1e40-4609-8d69-09704396987c (old id 615892)
alternative location
http://www.aiaa.org/agenda.cfm?lumeetingid=666&formatview=1&dateget=13-Jan-05
date added to LUP
2007-11-25 16:25:05
date last changed
2017-02-19 04:28:54
@inproceedings{fe989b7a-1e40-4609-8d69-09704396987c,
  abstract     = {The airflow field around air-intake related geometries has been investigated experimentally and numerically. The configuration of the experimental set-up is used to model a jet engine running near the ground. The experiments have been carried out using both PIV and LDA techniques in order to obtain the mean and fluctuating velocity field as well as the low speed frequencies related to the system of ground vortices. The LDA data provided frequency data that cannot be obtained from conventional PIV measurements. Additionally, flow visualization, using smoke and different seeding particles have been performed to obtain qualitative information about the flow structures and the ground vortices. Large Eddy Simulation (LES) has been used to study, quantitatively and qualitatively, the flow field and the dynamics of the vortex structures. A comparison of the results in terms of the mean velocity field shows very good agreement between the experimental and the LES results. The computed solution of the flow field is used also to estimate the ingestion of particles into the air-intake. This study proves that small particles can be ingested into the jet engine. The limiting particle size depends on the flow conditions and the distance of the air-intake from the ground as well as its inclination relative to the ground. Copyright},
  author       = {Secãreanu, Andrei and Moroianur, Dragos and Karlsson, Arne and Fuchs, Laszlo},
  booktitle    = {43rd AIAA Aerospace Sciences Meeting and Exhibit - Meeting Papers},
  keyword      = {Large eddy simulation (LES),Ground vortex interaction,Air-intake,Vortex structure},
  language     = {eng},
  pages        = {4645--4654},
  publisher    = {American Institute of Aeronautics and Astronautics},
  title        = {Experimental and numerical study of ground vortex interaction in an air-intake},
  year         = {2005},
}