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

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 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.

[1] Shihe Yi,et al. Aero-optical aberration measuring method based on NPLS and its application , 2010 .

[2] Shihe Yi,et al. Supersonic flow imaging via nanoparticles , 2009 .

[3] Channa Raju,et al. Control of shock unsteadiness in shock boundary-layer interaction on a compression corner using mechanical vortex generators , 2012 .

[4] Christian Rey,et al. Particle Image Velocimetry in Mach 3.5 and 4.5 Shock-Tunnel Flows , 2002 .

[5] H. Holden,et al. Effect of Microvortex Generators On Seperated Normal Shock/ Boundary Layer Interactions , 2007 .

[6] Lin He,et al. Visualization of coherent structures in a supersonic flat-plate boundary layer , 2011 .

[7] Mark F. Reeder,et al. Control of an axisymmetric jet using vortex generators , 1994 .

[8] Zhenbing Luo,et al. Flow Visualization of Supersonic Flow over a Finite Cylinder , 2012 .

[9] Fulvio Scarano,et al. Effects of micro-ramps on a shock wave/turbulent boundary layer interaction , 2009 .

[10] Lin He,et al. A flow control study of a supersonic mixing layer via NPLS , 2009 .