Title: Study of gravitational sedimentation of multiple permeable particles using immersed boundary method

Authors: Sudeshna Ghosh; Kashish Chhabra; Deepika Sharma

Addresses: Amity School of Applied Sciences, Amity University Haryana, Gurugram, India ' Amity School of Applied Sciences, Amity University Haryana, Gurugram, India ' Amity School of Applied Sciences, Amity University Haryana, Gurugram, India

Abstract: This research's goal is to study two particle system's interaction in two-dimensional framework for the cases where the interacting particles are either permeable or impermeable in nature. The numerical technique implemented to solve this problem is immersed boundary (IB) method. Two scenarios of interacting particles having same permeability (case 1) and different permeabilities (case 2) are considered. Case 3, studies the interaction between an impermeable and permeable particle. The results obtained indicates that the permeability value of the particle plays a vital role to the interacting dynamics between the particles. In the end, we compared our computed results of settling velocities of particles with existing analytical expressions.

Keywords: IB method; sedimentation; settling velocity; fluid-structure interaction; permeable; drafting; kissing and tumbling; DKT.

DOI: 10.1504/PCFD.2023.129763

Progress in Computational Fluid Dynamics, An International Journal, 2023 Vol.23 No.2, pp.122 - 130

Received: 24 Jul 2021
Accepted: 11 Feb 2022
Published online: 25 Mar 2023 *

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