Abstract
A gas cyclone separator represents a classic field of application where turbulent particle-laden flows play a major role. In order to evaluate the performance of a recently developed Euler–Lagrange simulation tool based on the large-eddy simulation (LES) technique and the point-particle approach, this practically relevant flow problem is considered in the present study. As a first step towards a full simulation taking all interactions between the two phases (fluid–particle, particle–fluid and particle–particle) into account, a one-way coupled prediction is carried out. Nevertheless, the entire simulation methodology is described in detail including a sandgrain roughness model and a deterministic collision model. For the latter a performance analysis was carried out demonstrating that even for a high mass loading the computational effort for the collision detection remains below 10 % of the entire CPU-time. The predicted LES results for the cyclone flow are compared with corresponding measurements and a reasonable agreement is found.
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Acknowledgements
The time-consuming computations were carried out on the national supercomputer Cray XE6 (Hermit) at the High Performance Computing Center Stuttgart (grant no.: PARTICLE / pfs 12855), which is gratefully acknowledged.
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Alletto, M., Breuer, M. (2013). Large-Eddy Simulation of the Particle-Laden Turbulent Flow in a Cyclone Separator. In: Nagel, W., Kröner, D., Resch, M. (eds) High Performance Computing in Science and Engineering ‘13. Springer, Cham. https://doi.org/10.1007/978-3-319-02165-2_26
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DOI: https://doi.org/10.1007/978-3-319-02165-2_26
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