Reference : Three-dimensional remeshed smoothed particle hydrodynamics for the simulation of isot...
Scientific journals : Article
Engineering, computing & technology : Mechanical engineering
Computational Sciences
http://hdl.handle.net/10993/28984
Three-dimensional remeshed smoothed particle hydrodynamics for the simulation of isotropic turbulence
English
Obeidat, Anas mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Bordas, Stéphane mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
May-2017
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS
No
International
[en] remesh smoothed particle hydrodynamics ; turbulent flow ; three-dimensional isotropic decaying turbulence
[en] We present a remeshed particle-mesh method for the simulation of three-dimensional compressible turbulent flow. The method is related to the mesh free smoothed particle hydrodynamic (SPH) method, but the present method introduces a mesh for efficient calculation of the pressure gradient, and laminar and turbulent diffusion. In addition, the mesh is used to remesh (reorganise uniformly) the particles to ensure a regular particle distribution and convergence of the method. The accuracy of the presented methodology is tested for a number of benchmark problems involving two- and three-dimensional Taylor-Green flow, thin double shear layer, and three-dimensional isotropic turbulence. Two models were implemented, direct numerical simulations, and Smagorinsky model. Taking advantage of the Lagrangian advection, and the finite difference efficiency, the method is capable of providing quality simulations while maintaining its robustness and versatility
http://hdl.handle.net/10993/28984

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