Forcing boundary-layer transition on an inverted airfoil in ground effect and at varying incidence

Simple item page
dc.contributor.authorRoberts, L.
dc.contributor.authorFinnis, Mark V.
dc.contributor.authorKnowles, Kevin
dc.contributor.authorLawson, Nicholas J.
dc.date.accessioned2016-10-19T15:15:53Z
dc.date.available2016-10-19T15:15:53Z
dc.date.issued2016-06-17
dc.descriptionPresented at 34th AIAA Applied Aerodynamics Conferenceen_UK
dc.description.abstractThe influence of the laminar boundary-layer state on a wing operating in ground effect at Re = 6 × 10 has been investigated using experiments with a model that provides two-dimensional flow and computations with a panel-method code. The effect of a boundary-layer trip placed at varying distances from the leading edge was observed at various incidences in terms of on-surface characteristics, including pressure measurements, flow visualisation and hot-film anemometry, and off-surface characteristics with LDA surveys below and behind the wing. The act of forcing transition led to downforce being reduced and drag increased, moreover, it altered almost all aspects of the wing’s aerodynamic characteristics, with the effect becoming greater as the trip was placed closer to the leading edge. These aspects include the replacement of a laminar separation bubble with trailing-edge separation, a thicker boundary layer, and a thicker wake with greater velocity deficit. The importance of considering laminar phenomena for wings operating in ground effect has been shownen_UK
dc.identifier.citationLuke S. Roberts, Mark Finnis, Kevin Knowles, and Nicholas J. Lawson. "Forcing Boundary-Layer Transition on an Inverted Airfoil in Ground Effect at Varying Incidence", 34th AIAA Applied Aerodynamics Conference, AIAA Aviation, (AIAA 2016-3724)en_UK
dc.identifier.urihttps://doi.org/10.2514/6.2016-3724
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/10789
dc.publisherAmerican Institute of Aeronautics and Astronautics Inc, AIAAen_UK
dc.rightsAttribution-NonCommercial 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.titleForcing boundary-layer transition on an inverted airfoil in ground effect and at varying incidenceen_UK
dc.typeConference paperen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Forcing_boundary-layer_transition_on_an_inverted_airfoil-2016.pdf
Size:
10.66 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.79 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (CDS)