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arXiv · 2608.17560

Homogenization of a relaxed compressible viscous two-phase fluid model in a domain with very tiny holes

Florian Oschmann·Florian Wendt
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Abstract

We study an approximate system for the compressible Navier-Stokes-Korteweg equations in a bounded domain periodically perforated by small obstacles. As the size of the obstacles decrease much faster to zero than their mutual distances, we show in spatial dimension two and three that the limiting system remains unchanged. Our result applies for a large class of monotone and non-monotone pressure functions. In particular, it holds in the physically relevant case when the approximate system is used to describe the dynamics of a compressible viscous two-phase fluid extending the corresponding homogenization results known for the compressible Navier-Stokes equations in a single-phase setting.

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Florian Oschmann, Florian Wendt. 2026-08-18. Homogenization of a relaxed compressible viscous two-phase fluid model in a domain with very tiny holes. https://arxiv.org/abs/2608.17560

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