A semi transient methodology for dual time stepping of particle and flow field simulations of an Eulerian-Lagrangian multiphysics solver

Siyahhan, Bercan; Boiger, Gernot; Fallah, Arash; Khawaja, Hassan; Moatamedi, Moji

Publication type:	Conference other
Type of review:	Peer review (abstract)
Title:	A semi transient methodology for dual time stepping of particle and flow field simulations of an Eulerian-Lagrangian multiphysics solver
Authors:	Siyahhan, Bercan Boiger, Gernot Fallah, Arash Khawaja, Hassan Moatamedi, Moji
et. al:	No
Proceedings:	Multiphysics 2023
Page(s):	40
Conference details:	18th International Conference of Multiphysics, Graz, Austria, 14-15 December 2023
Issue Date:	Dec-2023
Publisher / Ed. Institution:	International Society of Multiphysics
ISSN:	2409-1669 2409-7527
Language:	English
Subjects:	Multiphysics; Particle dynamics; Semi-transient; Dual time stepping; OpenFOAM; Eulerian Lagrangian
Subject (DDC):	530: Physics
Abstract:	Many industrial applications involve particles transported by a carrier fluid flow with additional multi-physical effects such as electromagnetics. The simulation of such processes is computationally expensive especially because of the diverse dimensional and time scales involved. In this study, the time scale for the fluid flow to be stably simulated is shown to be up to 2 orders of magnitude higher than the time scale for a spherical particle to assume carrier flow velocity. A semi-transient solution methodology has been devised, utilizing a dual time stepping approach for the flow and particle simulations. In this methodology, first the flow field is simulated with the larger time step, saving the resultant fields at regular intervals serving as snap shots of the flow. Then between each snap shot, the flow is treated as steady state, facilitating the calculation of the particle trajectory based on the resultant forces. This approach is especially suitable for applications where the particle cloud density is low enough not to have a significant effect on the flow field warranting a one way coupling. The accuracy of the method is established by comparing key performance parameters such as coating transfer efficiency and the homogeneity of the coating obtained from a fully transient simulation. The saving potential in terms of computational resources is also quantified
URI:	https://www.multiphysics.org/s/MULTIPHYSICS-2023-Abstract-Booklet.pdf https://digitalcollection.zhaw.ch/handle/11475/30252
Fulltext version:	Published version
License (according to publishing contract):	Licence according to publishing contract
Departement:	School of Engineering
Organisational Unit:	Institute of Computational Physics (ICP)
Appears in collections:	Publikationen School of Engineering

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Siyahhan, B., Boiger, G., Fallah, A., Khawaja, H., & Moatamedi, M. (2023). A semi transient methodology for dual time stepping of particle and flow field simulations of an Eulerian-Lagrangian multiphysics solver [Conference presentation]. Multiphysics 2023, 40. https://www.multiphysics.org/s/MULTIPHYSICS-2023-Abstract-Booklet.pdf

Siyahhan, B. et al. (2023) ‘A semi transient methodology for dual time stepping of particle and flow field simulations of an Eulerian-Lagrangian multiphysics solver’, in Multiphysics 2023. International Society of Multiphysics, p. 40. Available at: https://www.multiphysics.org/s/MULTIPHYSICS-2023-Abstract-Booklet.pdf.

B. Siyahhan, G. Boiger, A. Fallah, H. Khawaja, and M. Moatamedi, “A semi transient methodology for dual time stepping of particle and flow field simulations of an Eulerian-Lagrangian multiphysics solver,” in Multiphysics 2023, Dec. 2023, p. 40. [Online]. Available: https://www.multiphysics.org/s/MULTIPHYSICS-2023-Abstract-Booklet.pdf

SIYAHHAN, Bercan, Gernot BOIGER, Arash FALLAH, Hassan KHAWAJA und Moji MOATAMEDI, 2023. A semi transient methodology for dual time stepping of particle and flow field simulations of an Eulerian-Lagrangian multiphysics solver. In: Multiphysics 2023 [online]. Conference presentation. International Society of Multiphysics. Dezember 2023. S. 40. Verfügbar unter: https://www.multiphysics.org/s/MULTIPHYSICS-2023-Abstract-Booklet.pdf

Siyahhan, Bercan, Gernot Boiger, Arash Fallah, Hassan Khawaja, and Moji Moatamedi. 2023. “A Semi Transient Methodology for Dual Time Stepping of Particle and Flow Field Simulations of an Eulerian-Lagrangian Multiphysics Solver.” Conference presentation. In Multiphysics 2023, 40. International Society of Multiphysics. https://www.multiphysics.org/s/MULTIPHYSICS-2023-Abstract-Booklet.pdf.

Siyahhan, Bercan, et al. “A Semi Transient Methodology for Dual Time Stepping of Particle and Flow Field Simulations of an Eulerian-Lagrangian Multiphysics Solver.” Multiphysics 2023, International Society of Multiphysics, 2023, p. 40, https://www.multiphysics.org/s/MULTIPHYSICS-2023-Abstract-Booklet.pdf.