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- W4375843072 abstract "Abstract The behavior of flow around a single cylinder is complex, and when multiple cylinders are arranged in a tandem or multi-cylinder configuration, the complexity increases significantly. This arrangement is commonly used in aerodynamic applications and dynamic states, presenting challenges in grid and mesh quality, boundary conditions, numerical stability, and mesh adaptivity. This study aims to simulate flow around multiple cylinder arrangements, comparing static and dynamic cases and presenting results through vorticity distributions, wake flow, pressure distributions, drag and lift coefficients, and flow separations. The paper addresses the strategies used for numerical setup, boundary conditions, solvers, or models used using OpenFOAM open-source code, and data validation. In addition, the study simulates the flow around rotating multiple cylinders using dynamic meshes, ensuring good transport of properties between the boundaries of the dynamic mesh while retaining the underlying physics. The results show that the flow around the cylinder is laminar and steady for Reynolds numbers below approximately 40-50, while Von Karman vortices can be observed for Reynolds numbers between approximately 40-200, and horseshoe vortex for Reynolds numbers greater than approximately 200. The Coefficient of pressure also changes accordingly. With dynamic arrangement, the study was able to establish a good master-slave arrangement, depict complex mean flow between the cylinder, and periodic changes in Coefficient of pressure along the rotating cylinder. Result validation was also conducted. This dynamic mesh and simulation for rotating cylinders are still a work in progress, with ongoing efforts to develop a solver for greater accuracy and less computational expense and time-consuming simulations. Future expectations include the concept of vertical axis turbines and other commonly used in aerodynamic applications." @default.
- W4375843072 created "2023-05-10" @default.
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- W4375843072 date "2023-05-08" @default.
- W4375843072 modified "2023-09-24" @default.
- W4375843072 title "Flow Around Tandem Cylinders and Dynamic Meshing" @default.
- W4375843072 doi "https://doi.org/10.21203/rs.3.rs-2895717/v1" @default.
- W4375843072 hasPublicationYear "2023" @default.
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