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Entropy
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Statistical Physics of Soft Matter and Complex Systems
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Statistical Physics of Soft Matter and Complex Systems

A special issue of Entropy (ISSN 1099-4300). This special issue belongs to the section "Statistical Physics".

Deadline for manuscript submissions: closed (1 March 2021) | Viewed by 5416

Special Issue Editors

Prof. Dr. Germano S. Iannacchione

E-Mail Website
Guest Editor
Department of Physics, Worcester Polytechnic Institute, Worcester, MA 01609-2280, USA
Interests: phase transitions; non-equilibrium phenomena; liquid crystal physics; heat capacity; polymer composites
Prof. Dr. Mohan Srinivasarao

E-Mail Website
Guest Editor
School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
Interests: physics of liquid crystals; polymer physics; structural color; fluid dynamics; light microscopy

Special Issue Information

Dear Colleagues,

Entropy is the central concept in equilibrium thermodynamics, but has remained far removed from processes that are far from equilibrium. Biological systems (living) as well as active (driven) systems have attracted considerable attention recently that now invites a closer examination of entropy in this context. More specifically, energy-consuming systems, those that have a net energy density flow, result in the emergence of internal work that leads to ordered structures that are compensated for by changes that are related to entropy or information. This Special Issue brings together a range of leading experts to examine the concept of entropy dealing with far-from-equilibrium systems in the context of biological and active soft matter.

Prof. Dr. Germano S. Iannacchione
Prof. Dr. Mohan Srinivasarao
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 100 words) can be sent to the Editorial Office for announcement on this website.

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. Entropy 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 2600 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.

Published Papers (2 papers)

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Research

45 pages, 603 KiB  
Article
Multiscale Thermodynamics
by Miroslav Grmela
Entropy 2021, 23(2), 165; https://doi.org/10.3390/e23020165 - 29 Jan 2021
Cited by 10 | Viewed by 1897
Abstract
Multiscale thermodynamics is a theory of the relations among the levels of investigation of complex systems. It includes the classical equilibrium thermodynamics as a special case, but it is applicable to both static and time evolving processes in externally and internally driven macroscopic [...] Read more.
Multiscale thermodynamics is a theory of the relations among the levels of investigation of complex systems. It includes the classical equilibrium thermodynamics as a special case, but it is applicable to both static and time evolving processes in externally and internally driven macroscopic systems that are far from equilibrium and are investigated at the microscopic, mesoscopic, and macroscopic levels. In this paper we formulate multiscale thermodynamics, explain its origin, and illustrate it in mesoscopic dynamics that combines levels. Full article
(This article belongs to the Special Issue Statistical Physics of Soft Matter and Complex Systems)
35 pages, 4137 KiB  
Article
Rate of Entropy Production in Evolving Interfaces and Membranes under Astigmatic Kinematics: Shape Evolution in Geometric-Dissipation Landscapes
by Ziheng Wang, Phillip Servio and Alejandro D. Rey
Entropy 2020, 22(9), 909; https://doi.org/10.3390/e22090909 - 19 Aug 2020
Cited by 8 | Viewed by 2989
Abstract
This paper presents theory and simulation of viscous dissipation in evolving interfaces and membranes under kinematic conditions, known as astigmatic flow, ubiquitous during growth processes in nature. The essential aim is to characterize and explain the underlying connections between curvedness and shape evolution [...] Read more.
This paper presents theory and simulation of viscous dissipation in evolving interfaces and membranes under kinematic conditions, known as astigmatic flow, ubiquitous during growth processes in nature. The essential aim is to characterize and explain the underlying connections between curvedness and shape evolution and the rate of entropy production due to viscous bending and torsion rates. The membrane dissipation model used here is known as the Boussinesq-Scriven fluid model. Since the standard approaches in morphological evolution are based on the average, Gaussian and deviatoric curvatures, which comingle shape with curvedness, this paper introduces a novel decoupled approach whereby shape is independent of curvedness. In this curvedness-shape landscape, the entropy production surface under constant homogeneous normal velocity decays with growth but oscillates with shape changes. Saddles and spheres are minima while cylindrical patches are maxima. The astigmatic flow trajectories on the entropy production surface, show that only cylinders and spheres grow under the constant shape. Small deviations from cylindrical shapes evolve towards spheres or saddles depending on the initial condition, where dissipation rates decrease. Taken together the results and analysis provide novel and significant relations between shape evolution and viscous dissipation in deforming viscous membrane and surfaces. Full article
(This article belongs to the Special Issue Statistical Physics of Soft Matter and Complex Systems)
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