Gelling non-Newtonian drops impacting on liquids: experiments, numerical simulations, and AI-empowered

• Grant number: 24/04769-1
• Support Opportunities: Regular Research Grants
• Start date: July 01, 2025
• End date: June 30, 2029
• Field of knowledge: Physical Sciences and Mathematics - Mathematics - Applied Mathematics
• Agreement: ANR
• Principal Investigator: Cassio Machiaveli Oishi
• Grantee: Cassio Machiaveli Oishi
• Principal researcher abroad: Anselmo Soeiro Pereira
• Institution abroad: ParisTech , France
• Host Institution: Faculdade de Ciências e Tecnologia (FCT). Universidade Estadual Paulista (UNESP). Campus de Presidente Prudente. Presidente Prudente , SP, Brazil
• City of the host institution: Presidente Prudente
• Associated researchers: Irineu Lopes Palhares Junior

Abstract

One of the most challenging problems coupling interfacial hydrodynamics, soft matterrheology, and material phase change concerns the impact of non-Newtonian drops (polymersolutions, suspensions, emulsions etc.) on a chemically reactive Newtonian liquid inducing dropgelation, i.e., the drop, which is initially a weak gel 1 , solidifies while penetrating the liquid, becomingthen a strong gel 2. This fundamental and scarcely explored physicochemicalhydrodynamics' topic is directly related to extremely important health and industrial applications,such as: encapsulation processes (for the protection of transplanted pancreatic islets cells, forexample), 3D-bioprinting of cells, tissues, organs, prosthetics, and wound dressings; and ceramicbeads and non-spherical solid particles production.In the endeavour to deeply predict and control the processes listed above, the importance of thefollowing question cannot be overestimated: how do non-Newtonian drops behave when hitting achemically reactive Newtonian liquid inducing drop gelation? The answer to this question isthe core of this project. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

EVANS, J. D.; PALHARES JUNIOR, I. L.; OISHI, C. M.; RUANO NETO, F.. Analysis of Newtonian fluid flows around sharp corners with slip boundary conditions. THEORETICAL AND COMPUTATIONAL FLUID DYNAMICS, v. 39, n. 5, p. 21-pg., 2025-09-13. (13/07375-0, 24/04769-1, 21/05727-2, 24/01651-0)