Circular cylinder in a transonic flow at high Reynolds numbers: Thermal problem

The vortex dynamics of a supersonic flow past an impulsively started circular cylinder are studied numerically. A well-developed high-order finite difference method is adopted to solve the two-dimensional Navier–Stokes equations. In particular, Ma = 1.1 and Re = 2.2 × 104 are selected to report the vortex evolution process. The results confirm that the α-, β-, sub- α-, and sub- β-phenomena observed in incompressible flow in the separated region do exist in the supersonic regime. In addition, the influence of Mach number and Reynolds number on the vortex is also studied, and the vortex changes are compared at Ma = 1.1, 1.7 and Re = 1 × 104, 2 × 104, 2.5 × 104, 3 × 104, 5 × 104, and 1 × 105.

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α-, β-phenomena for the supersonic flow around an impulsively started circular cylinder

Tang

Huang

Yang

et al. 2023

AIP Advances

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Circular cylinder in a transonic flow at high Reynolds numbers: Thermal problem

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α-, β-phenomena for the supersonic flow around an impulsively started circular cylinder

α-, β-phenomena for the supersonic flow around an impulsively started circular cylinder

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