Work

Reflections on some aspects of interfacial transport phenomena, surfactants, and related flows

Year: 2025

Type: article

Abstract: We reflect here on some aspects of interfacial transport phenomena, surfactants, and related flows. First, we recall concepts basic to the rest of the content. Then we highlight the extraordinary success of the concept of active, self-propelling drops thanks to the availability of microelectronic technologies and microelectromechanical systems that were not readily available in 1994 when the pioneering theoretical predictions by Rednikov, Ryazantsev, and Velarde were published. A digression about the ascent of sap in trees is presented, illustrating conflicting views in the botanical community. Surfactant spreading transport is also discussed, illustrating the conflicting views that exist about the superspreading phenomenon in the scientific community. In all cases, we provide suggestions for further research.

Source: Frontiers in Mechanical Engineering

DOI: 10.3389/fmech.2025.1683660

Authors: Hanene Zahaf, Hocine Alla, Manuel G. Velarde

Institutions: Université des Sciences et de la Technologie d'Oran Mohamed Boudiaf, Ecole Normale Supérieure d'Oran, Universidad Complutense de Madrid, Universidad Europea de Madrid

Language: English

Topic: Fluid Dynamics and Heat Transfer

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,418

Funders: Universidad Complutense de Madrid, Università degli Studi di Pavia