A combined ghost-point-forcing / direct-forcing immersed boundary method (IBM) for compressible flow simulations

2018 ◽  
Vol 162 ◽  
pp. 91-112 ◽  
Author(s):  
Radouan Boukharfane ◽  
Fábio Henrique Eugênio Ribeiro ◽  
Zakaria Bouali ◽  
Arnaud Mura
Keyword(s):  
Compressible Flow ◽  
Immersed Boundary Method ◽  
Immersed Boundary ◽  
Flow Simulations ◽  
Boundary Method ◽  
Direct Forcing

scholarly journals An improved Immersed Boundary Method for turbulent flow simulations on Cartesian grids

2021 ◽  
pp. 110240
Author(s):  
Benjamin Constant ◽  
Stéphanie Péron ◽  
Héloïse Beaugendre ◽  
Christophe Benoit
Keyword(s):  
Turbulent Flow ◽  
Immersed Boundary Method ◽  
Immersed Boundary ◽  
Cartesian Grids ◽  
Flow Simulations ◽  
Boundary Method

An Efficient Immersed Boundary Method Based on Penalized Direct Forcing for Simulating Flows Through Real Porous Media

2012 ◽  
Author(s):  
Wim-Paul Breugem ◽  
Vincent van Dijk ◽  
René Delfos
Keyword(s):  
Porous Medium ◽  
Ct Scan ◽  
Immersed Boundary Method ◽  
Volume Fraction ◽  
Solid Volume Fraction ◽  
Particle Diameter ◽  
Immersed Boundary ◽  
Average Particle ◽  
Boundary Method ◽  
Direct Forcing

A computationally efficient Immersed Boundary Method (IBM) based on penalized direct forcing was employed to determine the permeability of a real porous medium. The porous medium was composed of about 9000 glass beads with an average particle diameter of 1.93 mm and a porosity of 0.367. The forcing of the IBM depends on the local solid volume fraction within a computational grid cell. The latter could be obtained from a high-resolution X-ray Computed Tomography (CT) scan of the packing. An experimental facility was built to determine the permeability of the packing experimentally. Numerical simulations were performed for the same packing based on the data from the CT scan. For a scan resolution of 0.1 mm the numerical value for the permeability was nearly 70% larger than the experimental value. An error analysis indicated that the scan resolution of 0.1 mm was too coarse for this packing.

Jump‐reduced immersed boundary method for compressible flow

2020 ◽  
Vol 92 (9) ◽  
pp. 1135-1161
Author(s):  
Hanahchim Choung ◽  
Vignesh Saravanan ◽  
Soogab Lee
Keyword(s):  
Compressible Flow ◽  
Immersed Boundary Method ◽  
Immersed Boundary ◽  
Boundary Method
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