PERSPECTIVE article
Front. Mech. Eng.
Sec. Fluid Mechanics
This article is part of the Research TopicInstabilities and Transport Phenomena in Thin Films and Interfacial FlowsView all articles
REFLECTIONS ON SOME ASPECTS OF INTERFACIAL TRANSPORT PHENOMENA, SURFACTANTS AND RELATED FLOWS
Provisionally accepted
- 1ECOLE NORMALE SUPERIEURE D'ORAN, Oran, Algeria
- 2Université des Sciences et de la Technologie d’Oran,, Oran, Algeria
- 3INSTITUTO PLURIDISCIPLINAR, Universidad Complutense de Madrid, Madrid, Spain
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Offered here is a survey, kind of critical review, in the form of reflections on some aspects of interfacial transport phenomena, surfactants and related flows. First we recall basic concepts that permeate the rest of the content. Then we highlight the extraordinary success of the concept of active, self-propelling drops. A digression about the sap ascent in the trees is presented illustrating the conflicting views in the Botany community. Surfactant spreading transport is also discussed illustrating the conflicting views existing about the superspreading phenomenon in the corresponding scientific community.
Keywords: interfaces, surface tension gradients, Surface Forces, thin films, ACTIVE DROPS, SELFPROPELLED DROPS
Received: 11 Aug 2025; Accepted: 24 Oct 2025.
Copyright: © 2025 ZAHAF, ALLA and VELARDE. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: MANUEL G VELARDE, mgvelarde@pluri.ucm.es
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