IBERHEO 2024—Iberian Rheology

A special issue of Fluids (ISSN 2311-5521). This special issue belongs to the section "Non-Newtonian and Complex Fluids".

Deadline for manuscript submissions: 31 December 2025 | Viewed by 977

Special Issue Editors


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Guest Editor
Chemical Product and Process Technology Research Center (Pro2TecS), Department of Chemical Engineering and Materials Science, ETSI, University of Huelva, 21071 Huelva, Spain
Interests: rheology; bio-sourced materials; bio-lubricants; lubricating greases; colloids; biopolymers; tribology; gels with emphasis on oleogels and organogels
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Guest Editor
Physics Department, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, 1959-007 Lisbon, Portugal
Interests: rheology; Rheo-NMR; liquid crystals; bio-systems

Special Issue Information

Dear Colleagues,

From the 4th to 6th September 2024, the Iberian Meeting on Rheology (IBERHEO 2024) will be held at Instituto Superior de Agronomia, Universidade de Lisboa, Lisbon, Portugal. More information can be found at https://ibereo2024.com.

IBERHEO 2024 is a collaborative venture between the Spanish Group of Rheology (GER) and the Portuguese Society of Rheology (SPR), with a 20-year history. The event focuses on a broad spectrum of trending rheology-related topics, spanning fundamental areas, practical applications, and industrial contexts. IBERHEO 2024 aims to disseminate the latest advances in rheology carried out not only by Iberian (Spanish and Portuguese) researchers, but also by our international colleagues.

This Special Issue aims to publish high-quality research papers and review articles from IBERHEO 2024 that focus on rheology. The conference will cover the following main topics:

  • suspensions, emulsions, foams, and interfacial rheology;
  • food rheology and bio-rheology;
  • polymer rheology (solutions, gels, solids, melts, and composites);
  • microfluidics, experimental methods, and new advances in rheometry;
  • non-Newtonian fluid mechanics and computational rheology;
  • industrial rheology and processing.

Papers presented at the conference that are of sufficiently high quality will be considered for publication in Fluids. The full manuscripts will be peer-reviewed for the validation of the research results, developments, and applications. In addition, submissions that are sent by researchers not associated with the conference but that focus on the relevant topics are also welcome.

Prof. Dr. José M. Franco
Prof. Dr. Catarina R. Leal
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Fluids is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • soft matter and colloidal systems
  • polymer rheology
  • food rheology
  • bio-rheology
  • interfacial rheology
  • new advances in rheometry
  • microfluidics
  • non-newtonian fluid mechanics
  • computational rheology
  • industrial rheology and processing
  • rheology and the environment

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Published Papers (1 paper)

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Research

13 pages, 2543 KB  
Article
Experimental Study on the Time Response of the Microstructure of a Bentonite Suspension
by Hozman Butaybi-Mohamed, Pablo Fatuarte-Gutiérrez, David Gómez-Landero-López, Nicolás Reyes-Clemente, Juan I. Ros-Ruiz and Francisco J. Rubio-Hernández
Fluids 2025, 10(10), 257; https://doi.org/10.3390/fluids10100257 - 28 Sep 2025
Viewed by 353
Abstract
To obtain deeper information on the role played by microstructure evolution with time of particle suspensions specifically used in drilling processes, two representative time scales of a bentonite suspension were proposed. On one hand, a thixotropic time, which represents how fast the microstructure [...] Read more.
To obtain deeper information on the role played by microstructure evolution with time of particle suspensions specifically used in drilling processes, two representative time scales of a bentonite suspension were proposed. On one hand, a thixotropic time, which represents how fast the microstructure of the suspensions reaches equilibrium between build-up and break-down under shear, was obtained from hysteresis loop tests. On the other hand, a representative relaxation time, which refers to the time it takes to dissipate the stresses developed in the microstructure returning to the original free-stress state after some disturbance of the microstructure, was obtained from frequency sweep tests in the linear viscoelastic region using the Generalized Maxwell Model. The ratio of the relaxation time to the thixotropic time, named the thixo-elastic parameter, was lower than unity. Therefore, bentonite suspensions reach an equilibrium state resulting from equality of break and build processes after a long time of rest, while returning very fast to their original free-stress state, enabling the microstructure to rebuild mainly through a thixotropic phenomenon, which was almost not affected by internal stresses, and which facilitates the entrapping of rock cuttings generated during drilling processes. Full article
(This article belongs to the Special Issue IBERHEO 2024—Iberian Rheology)
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