Article (Scientific journals)
Three-dimensional remeshed smoothed particle hydrodynamics for the simulation of isotropic turbulence
Obeidat, Anas; Bordas, Stéphane
2017In International Journal for Numerical Methods in Fluids
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Keywords :
remesh smoothed particle hydrodynamics; turbulent flow; three-dimensional isotropic decaying turbulence
Abstract :
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
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Obeidat, Anas  ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Bordas, Stéphane ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
External co-authors :
no
Language :
English
Title :
Three-dimensional remeshed smoothed particle hydrodynamics for the simulation of isotropic turbulence
Publication date :
01 June 2017
Journal title :
International Journal for Numerical Methods in Fluids
ISSN :
1097-0363
Publisher :
Wiley, New York, United States - New York
Peer reviewed :
Peer Reviewed verified by ORBi
Focus Area :
Computational Sciences
Available on ORBilu :
since 26 June 2017

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