A comparison between two Large Eddy Simulation (LES) approaches is proposed to reproduce the flow around a tandem cylinder arrangement in highly turbulent conditions (Reynolds number of 166,000) at a supercritical distance (L/D = 3.7 with L the distance between the cylinder centers and D their diameter). A LES - Variational Multi-Scale (VMS) and a classic LES methods are employed to model turbulence on the same unstructured grid. The results of the computations are compared to a set of experimental database built by NASA which includes averaged and fluctuating velocities, steady and unsteady pressure sensors. The top-end purpose of the study is to further demonstrate the suitability of the LES-VMS approach for turbulent flows around slender bodies with high aspect ratio.
A Study of LES Models for the Simulation of a Turbulent Flow Around Supercritical Tandem Cylinders
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Sainte-Rose, B, Allain, O, Leca, C, & Dervieux, A. "A Study of LES Models for the Simulation of a Turbulent Flow Around Supercritical Tandem Cylinders." Proceedings of the ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. Volume 2: CFD and VIV. San Francisco, California, USA. June 8–13, 2014. V002T08A058. ASME. https://doi.org/10.1115/OMAE2014-24031
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