In this research article, we investigated the phenomena of a buoyancy-driven cross-flow impinging on a bulk flow from the inlet for a flow past a pair of side-by-side square cylinders in a confined channel wall (which are kept in an adiabatic condition), a special case of an “internal flow” type problem. The density difference in the flow was achieved through a subtle temperature difference between the ambient fluid and the solid walls present in the domain. The study has been carried out at the Reynolds number Re = 1–40 for a transverse gap ratio s/d = 0.7–10 and the Richardson number Ri = 0–1 at a constant value of the Prandtl number Pr = 50. During a rigorous parametric study, we found that the mixed convection not only brings an early unsteadiness in the flow but also fetches an early formation of different flow regimes at Re = 40. An effort has been made to identify the precise near-wake formations leading to the vortex shedding processes in a mixed convection flow for a various range of s/d values. ...

中文翻译：

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在存在混合对流的情况下，流体流过一对并排的方形圆柱体时的尾流相互作用

在这篇研究文章中，我们研究了浮力驱动的横流从入口撞击大量流的现象，因为流经受限通道壁中的一对并排方形圆柱体（保持在一个绝热条件），“内部流动”类型问题的特例。流动中的密度差异是通过环境流体与域中存在的固体壁之间的细微温差实现的。该研究是在雷诺数 Re = 1-40 下进行的，横向间隙比 s/d = 0.7-10，理查森数 Ri = 0-1，且普朗特数 Pr = 50 的恒定值。通过严格的参数研究，我们发现混合对流不仅带来了流动的早期不稳定，而且在 Re = 40 处早期形成了不同的流态。已努力确定在各种 s/d 值范围内的混合对流中导致涡旋脱落过程的精确近尾流地层。...