Author(s)

Mohamed-Amine Chadil^1,2, Stéphane Vincent³, Jean-Luc Estivalèzes⁴

¹Institut de Mécanique des Fluides de Toulouse (IMFT), Université de Toulouse, CNRS, Toulouse, France.
²Institut de Mécanique et Ingénierie (I2M), Université de Bordeaux, Bordeaux, France.
³Laboratoire MSME, Université Paris-Est Marne-La-Vallée, Marne La Vallée, France.
⁴The French Aerospace Lab, ONERA, Toulouse, France.

A numerical study of the parameters controlling the viscous penalty method is investigated to better set up Particle-Resolved Direct Numerical Simulations (PR-DNS) of particulate flows. Based on this analysis, improvements of the methods are proposed in order to reach an almost second order convergence in space. The viscous penalty method is validated in Stokes regime by simulating a uniform flow past a fixed isolated cylinder. Moreover, it is also utilized in moderate Reynolds number regime for a uniform flow past a square configuration of cylinder and compared in terms of friction factor to the well-known Ergun correlation.

Particle-Resolved DNS, Viscous Penalty Method, Finite Volumes, Staggered Grids, One-Fluid Model

Chadil, M. , Vincent, S. and Estivalèzes, J. (2019) Improvement of the Viscous Penalty Method for Particle-Resolved Simulations. Open Journal of Fluid Dynamics, 9, 168-192. doi: 10.4236/ojfd.2019.92012.