Hydrodynamic flow field and frictional resistance coefficient of a disk rotating steadily in a compressible fluid layer with odd viscosity on a rigid substrate

Fuente: arXiv
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Autori principali: Daddi-Moussa-Ider, Abdallah, Hosaka, Yuto, Tjhung, Elsen, Vilfan, Andrej
Natura: Preprint
Pubblicazione: 2025
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author Daddi-Moussa-Ider, Abdallah
Hosaka, Yuto
Tjhung, Elsen
Vilfan, Andrej
author_facet Daddi-Moussa-Ider, Abdallah
Hosaka, Yuto
Tjhung, Elsen
Vilfan, Andrej
contents We analyze the hydrodynamics of a rotating disk in a two-dimensional compressible fluid layer with odd viscosity. Unlike conventional fluids, odd viscosity introduces a radial flow component that can be directed either inward or outward, depending on its sign. This phenomenon is expected to significantly impact the hydrodynamic interactions between two rotating disks, potentially causing effective attraction or repulsion depending on the sign of the odd viscosity and the direction of rotation. Furthermore, we calculate the rotational resistance coefficient and find that odd viscosity increases this coefficient, regardless of its sign.
format Preprint
id arxiv_https___arxiv_org_abs_2501_11510
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Hydrodynamic flow field and frictional resistance coefficient of a disk rotating steadily in a compressible fluid layer with odd viscosity on a rigid substrate
Daddi-Moussa-Ider, Abdallah
Hosaka, Yuto
Tjhung, Elsen
Vilfan, Andrej
Fluid Dynamics
Soft Condensed Matter
We analyze the hydrodynamics of a rotating disk in a two-dimensional compressible fluid layer with odd viscosity. Unlike conventional fluids, odd viscosity introduces a radial flow component that can be directed either inward or outward, depending on its sign. This phenomenon is expected to significantly impact the hydrodynamic interactions between two rotating disks, potentially causing effective attraction or repulsion depending on the sign of the odd viscosity and the direction of rotation. Furthermore, we calculate the rotational resistance coefficient and find that odd viscosity increases this coefficient, regardless of its sign.
title Hydrodynamic flow field and frictional resistance coefficient of a disk rotating steadily in a compressible fluid layer with odd viscosity on a rigid substrate
topic Fluid Dynamics
Soft Condensed Matter
url https://arxiv.org/abs/2501.11510