Abstract
This paper presents results from a computational study of an incompressible flow around an octahedral body for Reynolds numbers ranging from Re = 100 to Re = 300 000. Different flow regimes are considered by solving the Navier-Stokes equations in time, imitating implicit large-eddy simulation (ILES) and using turbulence models based on Reynolds-averaged Navier-Stokes equations (RANS). The main aim of the paper is to calculate the dependence of the drag coefficient with respect to the Reynolds number. The results are compared with the experimental and empirical data from the literature. The best agreement is obtained by the ILES computations, while the steady-state turbulence models showed a certain discrepancy.
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Čorbo, T., Halač, A., Torlak, M. (2022). Computation of the Fluid Flow Around Octahedral Bodies for a Wide Reynolds Number Range. In: Ademović, N., Mujčić, E., Akšamija, Z., Kevrić, J., Avdaković, S., Volić, I. (eds) Advanced Technologies, Systems, and Applications VI. IAT 2021. Lecture Notes in Networks and Systems, vol 316. Springer, Cham. https://doi.org/10.1007/978-3-030-90055-7_51
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DOI: https://doi.org/10.1007/978-3-030-90055-7_51
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