Dynamic mode decomposition of magnetohydrodynamic bubble chain flow in a rectangular vessel
Fluid Dynamics
2021-08-23 v2
Abstract
We showcase the dynamic mode decomposition (DMD) code developed for applications in two-phase flow analysis. Vertical bubble chain flow in a rectangular vessel filled with liquid gallium is studied without and with applied static horizontal magnetic field (MF) and DMD is applied to the velocity fields computed via volume of fluid simulations. Flow patterns are investigated in the vessel and bubble reference frames. We demonstrate the effect of applied MF and gas flow rate on bubble wake flow and larger scale flow structures within the liquid metal vessel by examining velocity field mode statistics over trajectory time and total flow time, as well as the computed mode velocity fields.
Cite
@article{arxiv.2103.13291,
title = {Dynamic mode decomposition of magnetohydrodynamic bubble chain flow in a rectangular vessel},
author = {Martins Klevs and Mihails Birjukovs and Peteris Zvejnieks and Andris Jakovics},
journal= {arXiv preprint arXiv:2103.13291},
year = {2021}
}