Towards Large-Eddy Simulation Of Complex Flows In Maritime Applications
Author Bandringa, H., Verstappen, R., Wubbs, F., Klaij, C.M. and Ploeg, A. van der
Title Towards Large-Eddy Simulation Of Complex Flows In Maritime Applications
Conference/Journal 6th European Conference on Computational Fluid Dynamics (ECFD VI)
Month July
Year 2014
Pages 4700-4711

Abstract
Flows around bluff bodies, a circular cylinder for instance, are difficult to simulate accurately with a RANS method. To improve this type of simulations, LES
models are considered in this paper. The idea behind these models is to minimize the subgrid dissipation. The models are based on the invariants of the rate of strain tensor.
Also the governing equations are discretized such that less artificial dissipation is added.
The proposed LES models are compared to an ILES model. The ILES model introduces artificial dissipation originating from the discretization of the governing equations. The
comparison is performed using MARIN's in-house CFD solver ReFRESCO. A flow around a circular cylinder with Re = 3900 is considered here to evaluate the LES models.
The (I)LES models clearly perform better than no model. The differences between the turbulence models, however, were small.

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