scholarly journals Analysis of solid particles falling down and interacting in a channel with sedimentation using fictitious boundary method

AIP Advances ◽  
2018 ◽  
Vol 8 (6) ◽  
pp. 065201 ◽  
Author(s):  
K. Usman ◽  
K. Walayat ◽  
R. Mahmood ◽  
N. Kousar
Keyword(s):  
Solid Particles ◽  
Boundary Method ◽  
Fictitious Boundary Method

scholarly journals Retraction: “Sedimentation of general shaped particles using a multigrid fictitious boundary method” [Phys. Fluids 32, 063301 (2020)]

2021 ◽  
Vol 33 (8) ◽  
pp. 089908
Author(s):  
Khuram Walayat ◽  
Nazia Talat ◽  
Saqia Jabeen ◽  
Kamran Usman ◽  
Moubin Liu
Keyword(s):  
Method Phys ◽  
Boundary Method ◽  
Fictitious Boundary Method

Fully Resolved Simulation of Particulate Flow Using a Sharp Interface Direct Forcing Immersed Boundary Method

2013 ◽  
Author(s):  
Jianming Yang ◽  
Frederick Stern
Keyword(s):  
Immersed Boundary Method ◽  
Solid Particles ◽  
Sharp Interface ◽  
Particulate Flow ◽  
Immersed Boundary ◽  
Fluid Structure ◽  
Boundary Method ◽  
Direct Forcing ◽  
Fully Resolved Simulation ◽  
Predictor Corrector

In this paper, the sharp interface, direct forcing immersed boundary method developed by Yang and Stern (A simple and efficient direct forcing immersed boundary framework for fluid-structure interactions, J. Comput. Phys. 231 (2012) 5029–5061) is applied to the fully resolved simulation of particulate flow. This method uses a discrete forcing approach and maintains a sharp profile of the fluid/solid interface. Also, it employs a strong coupling scheme for fluid-structure interaction through a predictor-corrector algorithm. The fluid flow solver is not included in the predictor-corrector iterative loop thanks to the direct forcing idea, which makes the overall algorithm highly efficient and very attractive for the fully resolved simulation of particulate flow with numerous solid particles. Several cases including sedimenting and buoyant particles and the interaction of two sedimenting particles showing kissing, drafting, and tumbling phenomenon are examined and compared with the reference results to demonstrate the simplicity and applicability of our method in particulate flow simulations.

212 Numerical simulation of solid particles in fluid using an immersed boundary method

2013 ◽  
Vol 2013.26 (0) ◽  
pp. _212-1_-_212-2_
Author(s):  
Susumu GOTO ◽  
Masataka ADACHI ◽  
Genta KAWAHARA ◽  
Ryosuke KASHIMA
Keyword(s):  
Numerical Simulation ◽  
Immersed Boundary Method ◽  
Solid Particles ◽  
Immersed Boundary ◽  
Boundary Method

scholarly journals Numerical Simulations of Particle Sedimentation Using the Immersed Boundary Method

2015 ◽  
Vol 18 (2) ◽  
pp. 380-416 ◽  
Author(s):  
Sudeshna Ghosh ◽  
John M. Stockie
Keyword(s):  
Immersed Boundary Method ◽  
Mass Density ◽  
Boussinesq Approximation ◽  
Solid Particles ◽  
Immersed Boundary ◽  
Particle Sedimentation ◽  
Numerical Studies ◽  
Boundary Method ◽  
Circular Particle ◽  
Interaction Problem

AbstractWe study the settling of solid particles in a viscous incompressible fluid contained within a two-dimensional channel, where the mass density of the particles is greater than that of the fluid. The fluid-structure interaction problem is simulated numerically using the immersed boundary method, where the added mass is incorporated using a Boussinesq approximation. Simulations are performed with a single circular particle, and also with two particles in various initial configurations. The terminal particle settling velocity and drag coefficient correspond closely with other theoretical, experimental and numerical results, and the particle trajectories reproduce the expected behavior qualitatively. In particular, simulations of a pair of interacting particles similar drafting-kissing-tumbling dynamics to that observed in other experimental and numerical studies.

An Efficient Immersed-Boundary Method to Deal With Over 1000 Solid Particles in Liquid Flow

2003 ◽  
Author(s):  
Takeo Kajishima
Keyword(s):  
Immersed Boundary Method ◽  
Solid Particles ◽  
Navier Stokes ◽  
Immersed Boundary ◽  
Flow Conditions ◽  
Particle Rotation ◽  
Navier Stokes Equation ◽  
Fluid Forces ◽  
Boundary Method ◽  
Solid Bodies

To deal with a number of solid bodies moving in fluid flow, we proposed an immersed-boundary method, in which the fortified Navier-Stokes equation was applied (Kajishima, et al., 2001). The fluid forces on the bodies are obtained by resolving flow around them. In this paper, some improvement for wider variety of flow conditions is introduced. Then a result of direct numerical simulation (DNS) of turbulence caused by over 1024 particles falling by gravity is demonstrated with particular interest on the influence of particle rotation.

Sedimentation of general shaped particles using a multigrid fictitious boundary method

2020 ◽  
Vol 32 (6) ◽  
pp. 063301 ◽  
Author(s):  
Khuram Walayat ◽  
Nazia Talat ◽  
Saqia Jabeen ◽  
Kamran Usman
Keyword(s):  
Boundary Method ◽  
Fictitious Boundary Method
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