University of Sussex

File(s) not publicly available

On the interaction between turbulence grids and boundary layers

posted on 2023-06-08, 23:14 authored by Thomas IrpsThomas Irps, Vasudevan KanjirakkadVasudevan Kanjirakkad
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.


Publication status

  • Published

Presentation Type

  • paper

Event name

Experimental fluid mechanics 2015

Event location


Event type


Event date

17.11.2015 - 20.11.2015

Department affiliated with

  • Informatics Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date


Usage metrics

    University of Sussex (Publications)


    No categories selected