Topical Problems of Fluid Mechanics


Institute of Thermomechanics AS CR, v.v.i.	CTU in Prague Faculty of Mech. Engineering Dept. Tech. Mathematics	MIO Université du Sud Toulon Var - AMU - CNRS - IRD	Czech Pilot centre ERCOFTAC

Numerical Validation of a Simple Immersed Boundary Solver for Branched Channels Simulations
A. Lancmanová, T. Bodnár, R. Keslerová
Abstract:
This contribution reports on an ongoing study of incompressible viscous fluid flow in two dimensional branched channels. A new finite difference solver was developed using a simple implementation of an immersed boundary method to represent the channel geometry. Numerical solutions obtained using this new solver are compared with outputs of an older finite volume code working on classical wall tted structured multiblock grid. Besides of the comparative evaluation of obtained solution, the aim is to verify whether the immersed boundary method is suitable (accurate and e cient enough) for simulations of flow in channels with complicated geometry where the the grid generation might be challenging.
Keywords:
vbranching channel, incompressible Navier-Stokes, finite difference, MacCormack, artificial compressibility

Fulltext: PDF DOI: https://doi.org/10.14311/TPFM.2022.018

In Proceedings Topical Problems of Fluid Mechanics 2022, Prague, 2022, Edited by David Šimurda and Tomáš Bodnár , pp. 127-134 ISBN 978-80-87012-77-2 (Print) ISSN 2336-5781 (Print)