Abstract
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.
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Acknowledgements
This work is funded by the National Nature Science Foundation of P. R. China through Grant Nos.11532007, 11772156, 51806102, 51906104, National Science and Technology Major Project (2017-V-0004-0054), Natural Science Foundation of Jiangsu Province (Grants No. BK20190385), Jiangsu provincial 333 high-level talent cultivation project through Grant No: BRA2018031, the priority academic program development of Jiangsu higher education institutions and the Fundamental Research Funds for the Central Universities through Grant Nos. 1002-YAH18026 and 1002-56XAA19050.
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Li, X., Tan, Hj., Zhang, Y. et al. Flow patterns of dual-incident shock waves/turbulent boundary layer interaction. J Vis 23, 931–935 (2020). https://doi.org/10.1007/s12650-020-00679-2
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DOI: https://doi.org/10.1007/s12650-020-00679-2