On the interaction between turbulence grids and boundary layers
Turbulence grids are widely used in wind tunnels to produce representative turbulence levels when testing aerodynamic phenomena around models. Although the purpose of the grid is to introduce a desired turbulence level in the freestream flow, the wall boundary layers of the tunnel are subjected to m...
Main Authors: | , |
---|---|
Format: | Article |
Language: | English |
Published: |
EDP Sciences
2016-01-01
|
Series: | EPJ Web of Conferences |
Online Access: | http://dx.doi.org/10.1051/epjconf/201611402048 |
id |
doaj-5d51d0e984ca49b2ab75a15195880f23 |
---|---|
record_format |
Article |
spelling |
doaj-5d51d0e984ca49b2ab75a15195880f232021-08-02T02:44:33ZengEDP SciencesEPJ Web of Conferences2100-014X2016-01-011140204810.1051/epjconf/201611402048epjconf_efm2016_02048On the interaction between turbulence grids and boundary layersIrps ThomasKanjirakkad VasudevanTurbulence grids are widely used in wind tunnels to produce representative turbulence levels when testing aerodynamic phenomena around models. Although the purpose of the grid is to introduce a desired turbulence level in the freestream flow, the wall boundary layers of the tunnel are subjected to modification due to the presence of such grids. This could have major implications to the flow around the models to be tested and hence there is a need to further understand this interaction. The study described in this paper examines wind tunnel wall boundary layer modification by turbulence grids of different mesh sizes and porosities to understand the effect of these parameters on such interaction. Experimental results are presented in the form of pressure loss coefficients, boundary layer velocity profiles and the statistics of turbulence modification.http://dx.doi.org/10.1051/epjconf/201611402048 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Irps Thomas Kanjirakkad Vasudevan |
spellingShingle |
Irps Thomas Kanjirakkad Vasudevan On the interaction between turbulence grids and boundary layers EPJ Web of Conferences |
author_facet |
Irps Thomas Kanjirakkad Vasudevan |
author_sort |
Irps Thomas |
title |
On the interaction between turbulence grids and boundary layers |
title_short |
On the interaction between turbulence grids and boundary layers |
title_full |
On the interaction between turbulence grids and boundary layers |
title_fullStr |
On the interaction between turbulence grids and boundary layers |
title_full_unstemmed |
On the interaction between turbulence grids and boundary layers |
title_sort |
on the interaction between turbulence grids and boundary layers |
publisher |
EDP Sciences |
series |
EPJ Web of Conferences |
issn |
2100-014X |
publishDate |
2016-01-01 |
description |
Turbulence grids are widely used in wind tunnels to produce representative turbulence levels when testing aerodynamic phenomena around models. Although the purpose of the grid is to introduce a desired turbulence level in the freestream flow, the wall boundary layers of the tunnel are subjected to modification due to the presence of such grids. This could have major implications to the flow around the models to be tested and hence there is a need to further understand this interaction. The study described in this paper examines wind tunnel wall boundary layer modification by turbulence grids of different mesh sizes and porosities to understand the effect of these parameters on such interaction. Experimental results are presented in the form of pressure loss coefficients, boundary layer velocity profiles and the statistics of turbulence modification. |
url |
http://dx.doi.org/10.1051/epjconf/201611402048 |
work_keys_str_mv |
AT irpsthomas ontheinteractionbetweenturbulencegridsandboundarylayers AT kanjirakkadvasudevan ontheinteractionbetweenturbulencegridsandboundarylayers |
_version_ |
1721243795315490816 |