A computational method for multiple steady Hele-Shaw bubbles in planar domains

Fuente: arXiv
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Auteurs principaux: Nasser, Mohamed M. S., Green, Christopher C., Kalmoun, El Mostafa
Format: Preprint
Publié: 2025
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author Nasser, Mohamed M. S.
Green, Christopher C.
Kalmoun, El Mostafa
author_facet Nasser, Mohamed M. S.
Green, Christopher C.
Kalmoun, El Mostafa
contents We present a unified numerical method to determine the shapes of multiple Hele-Shaw bubbles in steady motion, and in the absence of surface tension, in three planar domains: free space, the upper half-plane, and an infinite channel. Our approach is based on solving the free boundary problem for the bubble boundaries using a fast and accurate boundary integral method. The main advantage of our method is that it allows for the treatment of a very high number of bubbles. The presented method is validated by recovering some existing results for steady bubbles in channels and free space. Several numerical examples are presented, many of which feature configurations of bubbles that have not appeared in the literature before.
format Preprint
id arxiv_https___arxiv_org_abs_2503_12422
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A computational method for multiple steady Hele-Shaw bubbles in planar domains
Nasser, Mohamed M. S.
Green, Christopher C.
Kalmoun, El Mostafa
Complex Variables
Numerical Analysis
76D27, 65E10
We present a unified numerical method to determine the shapes of multiple Hele-Shaw bubbles in steady motion, and in the absence of surface tension, in three planar domains: free space, the upper half-plane, and an infinite channel. Our approach is based on solving the free boundary problem for the bubble boundaries using a fast and accurate boundary integral method. The main advantage of our method is that it allows for the treatment of a very high number of bubbles. The presented method is validated by recovering some existing results for steady bubbles in channels and free space. Several numerical examples are presented, many of which feature configurations of bubbles that have not appeared in the literature before.
title A computational method for multiple steady Hele-Shaw bubbles in planar domains
topic Complex Variables
Numerical Analysis
76D27, 65E10
url https://arxiv.org/abs/2503.12422