A Python toolbox for the numerical solution of the Maxey-Riley equation

Publikation: Beiträge in ZeitschriftenKonferenzaufsätze in FachzeitschriftenForschungbegutachtet

Authors

The Maxey-Riley equation (MRE) models the motion of a finite-sized, spherical particle in a fluid. It is a second-order integro-differential equation with a kernel with a singularity at initial time. Because solving the integral term is numerically challenging, it is often neglected despite its often non-negligible impact. Recently, Prasath et al. showed that the MRE can be rewritten as a time-dependent heat equation on a semi-infinite domain with a nonlinear, Robin-type boundary condition. This approach avoids the need to deal with the integral term. They also describe a numerical approach for solving the transformed MRE based on Fokas method. We provide a Python toolbox implementing their approach, verify it against some of their numerical examples and demonstrate its flexibility by computing the trajectory of a particle in a velocity field given by experimental data.
OriginalspracheEnglisch
Aufsatznummere202200242
ZeitschriftProceedings in applied mathematics and mechanics
Jahrgang22
Ausgabenummer1
Anzahl der Seiten6
ISSN1617-7061
DOIs
PublikationsstatusErschienen - 01.03.2023
Veranstaltung92. Jahrestagung der Gesellschaft für angewandte Mathematik und Mechanik - RWTH Aachen Universität, Aachen, Deutschland
Dauer: 15.08.202219.08.2022
Konferenznummer: 92
https://jahrestagung.gamm-ev.de/annual-meeting-2022/annual-meeting/

DOI

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