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Sina Samarbakhsh

Development and validation of hybrid grid-based and grid-free computational VπLES method

Universität Rostock, 2022

https://doi.org/10.18453/rosdok_id00003970

Abstract: A novel hybrid grid-based and grid-free computational method which is called VπLES is proposed and validated over several benchmark cases. VπLES splits the flow structures into large scale ones, resolved on the grid (Eulerian approach), and small scale ones, represented by vortex particles (Lagrangian approach). Two transport equations for grid and particle solution are derived which are dynamically coupled through the existence of coupling terms in each of them. The method resembles LES with an effort to directly reproduce the subgrid motion at least in the statistical sense.

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