Vortical structures of supersonic flow over a delta-wing on a flat plate

Employing the nanoparticle-based planar laser scattering (NPLS), supersonic flow over a delta-winged vortex generator on a flat plate was experimentally investigated in a supersonic quiet wind tunnel at Ma = 2.68. The fine structures of the flow field, shock waves, separation vortices, wake, and bou...

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Bibliographic Details
Published in:Applied physics letters 2013-02, Vol.102 (6)
Main Authors: Wang, D. P., Xia, Z. X., Zhao, Y. X., Wang, Q. H., Liu, B.
Format: Article
Language:English
Subjects:
Computational fluid dynamics
Fine structure
Flat plates
Nanostructure
Supersonic flow
Wakes
Wind tunnels
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Summary:Employing the nanoparticle-based planar laser scattering (NPLS), supersonic flow over a delta-winged vortex generator on a flat plate was experimentally investigated in a supersonic quiet wind tunnel at Ma = 2.68. The fine structures of the flow field, shock waves, separation vortices, wake, and boundary layer transition were observed in the NPLS images. According to the time-correlation of the NPLS images and the measurement results of particle image velocimetry, the structural model of the flow field was improved further, and coherent wake structures were observed, which is of significance theoretically and in engineering application.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4790286