Jianrui CHENG, Chongguang SHI, Xiaogang ZHENG, Chengxiang ZHU, Yancheng YOU

DOI Number: XXX-YYY-ZZZ

Conference Number: HiSST-2024-0032

In practical aerodynamic scenarios, interactions between curved shock waves and boundary layers with composite shock curvatures in both streamwise and spanwise directions are encountered more frequently than those induced by planar oblique shocks. To gain a more systematic understanding of this phenomenon in physics, the curved conical shock wave/plate boundary layer interactions (CSBLI) are being studied numerically using RANS equations. Specifically, by comparing the three-dimensional shock structures and separation scales, this study focuses on the effects of shock composite curvatures on separation, and the regularity of their action. The study reveals that there exist various effects of concave and convex conical shocks, emphasizing apparent continuous compression and expansion on separation. Furthermore, a semi-analytical model is established to estimate the complex flow, dividing the three-dimensional flow into a quasi-two-dimensional flow on symmetry plane and lateral bump flow. These findings propose a novel approach to estimating the flow structures in CSBLI, where analyzing the shock curvatures assists with comprehending other more intricate three-dimensional separation phenomena.

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In Categories: 1.Events, High-Speed Aerodynamics and Aerothermodynamics, HiSST 2024
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