Flow patterns of dual-incident shock waves/turbulent boundary layer interaction

The ice-cluster-based planar laser scattering technique, a high spatiotemporal resolution technique, is used to obtain the fine structures of dual-incident shock waves/turbulent boundary layer interaction. A double wedge produces these two incident shock waves. Three different interval distances bet...

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Bibliographic Details
Published in:Journal of visualization 2020-12, Vol.23 (6), p.931-935
Main Authors: Li, Xin, Tan, Hui-jun, Zhang, Yue, Huang, He-xia, Guo, Yun-jie, Lin, Zheng-kang
Format: Article
Language:English
Subjects:
Boundary layer interaction
Classical and Continuum Physics
Computer Imaging
Engineering
Engineering Fluid Dynamics
Engineering Thermodynamics
Flow distribution
Flow separation
Fluid dynamics
Heat and Mass Transfer
Pattern Recognition and Graphics
Separation
Shock waves
Short Paper
Turbulent boundary layer
Turbulent flow
Vision
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Summary:The ice-cluster-based planar laser scattering technique, a high spatiotemporal resolution technique, is used to obtain the fine structures of dual-incident shock waves/turbulent boundary layer interaction. A double wedge produces these two incident shock waves. Three different interval distances between the incident shock waves are examined to obtain the influence of the second shock wave on the entire flow-field configuration. The overall flow pattern of dual-incident shock wave/turbulent boundary layer interaction flow is shown dominated by a quasi-triangular separation when the two shock waves intersect at the wall. As the interval distance increases, a trapezoid separation appears and finally no apparent flow separation occurs in the turbulent boundary layer. Graphic abstract
ISSN:1343-8875
1875-8975
DOI:10.1007/s12650-020-00679-2