Abstract
This paper studies a computational fluid dynamics validation study of wake-capturing capability for unsteady flow characteristics. The computational fluid dynamics code used in this study is based on the Cartesian grid system with octree mesh refinement and uses a weighted essentially nonoscillatory numerical scheme to achieve higher-order accuracy to preserve unsteady flow characteristics. Flow properties in the flat-plate wake flowfield, such as mean velocity, root mean square of perturbation velocity, and frequencywise power spectrum of flow velocity, were chosen to validate the computational fluid dynamics code. The comparison between computational fluid dynamics results and experimental data showed good agreement for mean velocity and low-frequency fluctuations.
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