Comparative study of high-pressure fluid flow in densely packed granules using a 3D CFD model in a continuous medium and a simplified 2D DEM-CFD approach

• DOI: 10.1007/s10035-021-01179-2
• Publication Date: 2021-11-18T07:02:36Z
• Authors: R. Abdi; M. Krzaczek; J. Tejchman
• Keywords: CFD-DEM

Abstract An isothermal compressible single-phase fluid flow through a non-homogeneous granular body composed of densely packed overlapping spheres imitating rock under high pressure was numerically studied using two different approaches. The first approach called the full 3D CFD model used finite volume method (FVM) to solve Reynolds-averaged Navier–Stokes equations Reynolds stress (BSL) in continuous domain between granulates. verified, based on experimental and numerical results from literature. second simplified coupled DEM-CFD network. main aim work develop validation procedure for models due lack data characteristics granules extremely high-pressure conditions. First, series simulations were performed with model. those next validate 2D respect velocities, pressures, densities rates. Almost same density distributions mass rates obtained both However, velocity volumes domains. current simulation constitute reliable benchmark validating other 2D/3D that use network approach. Graphic abstract