Work

Contribution to the study of the dislodgment conditions of spheroids from a surface in fluid flow

Year: 2025

Type: article

Abstract: In this Letter, the concept of an asperity acting as a pivot point is used to investigate the critical conditions under which a spheroid resting on a surface is dislodged by fluid flow. The critical conditions are derived for prolate spheroids with the axis of revolution aligned with the flow direction and deduced for a sphere and oblate spheroids with the axis of revolution perpendicular to the surface. It is also found that the rolling mode always occurs first in the considered configuration.

Source: Physics of Fluids

DOI: 10.1063/5.0256607

Author: Rafik Ouchene

Institutions: Centre National de la Recherche Scientifique, École Nationale Supérieure de Mécanique et d'Aérotechnique, Institut Pprime, Université de Poitiers

Language: English

Topic: Particle Dynamics in Fluid Flows

Subfield: Ocean Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funder: Université de Poitiers

OpenAlex ID: W4407741521