Large-Eddy Simulation of the Particle-Laden Turbulent Flow in a Cyclone Separator

Michael Alletto () and Michael Breuer ()
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Michael Alletto: Helmut-Schmidt-Universität Hamburg
Michael Breuer: Helmut-Schmidt-Universität Hamburg

A chapter in High Performance Computing in Science and Engineering ‘13, 2013, pp 377-391 from Springer

Abstract: 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.

Keywords: Vortex Core; Rough Wall; Circumferential Velocity; Cyclone Separator; Precess Vortex Core (search for similar items in EconPapers)
Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-319-02165-2_26

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DOI: 10.1007/978-3-319-02165-2_26

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