- Published on Friday, 02 June 2017 08:58
Flowing matter problems are often too complex to be attacked from first principle or by brute force numerical methods. We need to model to reduce the number of degrees of freedom and/or we need to control to drive the system toward a less unpredictable behaviour. We are considering multi-scale interactions among a fluid matrix and dispersed structures as for the case of an assembly of molecules, mesoscopic particles, active biological and artificial entities, solid macroscopic objects or turbulent `coherent' fluctuations. We often understand the microscopic or individual behaviour but we lack a way to systematically upscale the problem to continuum descriptions. Flowing matter frequently presents a tight coupling between multi-scale structures and large-scale flow urging for a unifying view at both Lagrangian and Eulerian levels.
The European Physical Journal E is preparing a topical issue on this topic with the aim to stimulate research and advance our understanding of the following questions. Can we control complex flows by suitable Eulerian/Lagrangian optimal feedback? How to downsize the complexity and develop accurate sub-grid or multi-scale models? Can one learn how to escape from strong turbulent fluctuations? Or how to harvest fluid energy efficiently? How robust and universal can hydrodynamical models for active matter be? The topical issue will be focused on the following topics:
- modelling active matter by continuum Eulerian approaches
- tailoring active particles to achieve optimal goals
- understanding how biological organisms learn and evolve in complex environments
- modelling/controlling turbulent flows in order to optimise applied problems or to develop fundamental understanding of multiscale dynamics
- applying machine learning or modern data assimilation techniques to cope with big-data and/or complex behaviour in a high dimensional phase space
Deadline for submission: September 31st, 2017.
Guest editors of the special issue:
Luca Biferale, University of Rome "Tor Vergata", Italy
Stefano Guido, University of Napoli “Federico II”, Italy
Andrea Scagliarini, Italian National Research Council, Italy
Federico Toschi, Eindhoven Technical University, Netherlands
The submission is open to everyone working in the field. We invite contributors to communicate their intention to submit a manuscript for this topical issue to the Guest Editors as soon as possible. Manuscripts should be submitted before 31st July 2017 directly to the EPJE Editorial Office at https://articlestatus.edpsciences.org/is/epje. Submissions should be clearly identified as intended for the topical issue "Fluids and Structures: Interaction and Modelling". Papers will be published continuously and will appear (as soon as ready) on the journal website. The online version of the topical issue will contain the papers in the order of publication.