On the identification of cross-flow mode in three-dimensional boundary layers
نویسندگان
چکیده
Parametric zones are obtained where the cross-flow instability can be identified as a mode in three-dimensional boundary layers with Mach number ranging from 0 to 10. Although term is widely used investigations on boundary-layer instability, previous work [Z. Liu, Phys. Fluids 34, 094110 (2022)] has demonstrated that cannot designated certain circumstances. The identification of significant not only justifiable use but also judging whether disturbance more inclined type or not. In this work, criterion built identify based growth-rate peak and shape. By means extensive calculations identifications, parametric presented for unstable mode. It found at large local sweep numbers larger than 1.6. zones, distinguished Tollmien–Schlichting mode, solely dominant Based maximum growth rates Mack modes provided. determined different numbers. revealed dominate low Under strengths, second could hypersonic layers, which contrasts sharply two-dimensional case.
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ژورنال
عنوان ژورنال: AIP Advances
سال: 2023
ISSN: ['2158-3226']
DOI: https://doi.org/10.1063/5.0135008