M.R. Rastan

TL;DR: In this article, a direct numerical simulation is applied to investigate three-dimensional unsteady flow characteristics around a finite wall-mounted square cylinder with an aspect ratio of 7 at a Reynolds number (Re) of 40-250.

TL;DR: In this article, the dependence of flow transitions and flow regimes on Reynolds number Re and scaled cylinder center-to-center spacing S* (≤ 10) for two tandem cylinders is presented.

TL;DR: In this article, the effect of the aspect ratio (AR) on the shedding of large-scale vortical structures was investigated with the aid of direct numerical simulations and the results showed that, independent of AR, both blowing and suction have the potential to reduce the time-mean forces (e.g. more than 90% pressure drag reduction), fluctuating forces and vortex shedding frequency.

TL;DR: In this article, the authors explored the dependence of the wake dynamics on the prism cross-sectional aspect ratio of a wall-mounted finite-length rectangular prism at a Reynolds number Re −1−1.

TL;DR: In this article, the authors numerically investigated the time-resolved laminar flow, fluid forces, Strouhal number, and convective heat transfer over two isothermal co-rotating and counterrotating circular cylinders in tandem arrangements for scaled cylinder center-to-center spacing S* and Re.