Lift force in odd compressible fluids - Sorbonne Université
Journal Articles Physical Review E Year : 2023

Lift force in odd compressible fluids

Abstract

When a body moves through a fluid, it can experience a force orthogonal to its movement, called lift force. Odd viscous fluids break parity and time-reversal symmetry, suggesting the existence of an odd lift force on tracer particles, even at vanishing Reynolds numbers and for symmetric geometries. It was previously found that an incompressible odd fluid cannot induce lift force on a tracer particle with no-slip boundary conditions, making signatures of odd viscosity in the twodimensional bulk elusive. By computing the response matrix for a tracer particle, we show that an odd compressible fluid can produce an odd lift force. Using shell localization, we provide analytic expressions for the drag and odd lift forces acting on the tracer particle in a steady state and also at finite frequency. Importantly, we find that the existence of an odd lift force in a steady state requires taking into account the non-conservation of the fluid mass density due to the coupling between the two-dimensional surface and the three-dimensional bulk fluid.
Fichier principal
Vignette du fichier
lier2023lift.pdf (750.44 Ko) Télécharger le fichier
Origin Files produced by the author(s)

Dates and versions

hal-04190242 , version 1 (29-08-2023)

Identifiers

Cite

Ruben Lier, Charlie Duclut, Stefano Bo, Jay Armas, Frank Jülicher, et al.. Lift force in odd compressible fluids. Physical Review E , 2023, 108 (2), pp.L023101. ⟨10.1103/PhysRevE.108.L023101⟩. ⟨hal-04190242⟩
22 View
16 Download

Altmetric

Share

More