Unified thermodynamic stability analysis in fluids and elastic materials

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F21%3A00353598" target="_blank" >RIV/68407700:21340/21:00353598 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.fluid.2021.113219" target="_blank" >https://doi.org/10.1016/j.fluid.2021.113219</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.fluid.2021.113219" target="_blank" >10.1016/j.fluid.2021.113219</a>

Result language

angličtina

Original language name

Unified thermodynamic stability analysis in fluids and elastic materials

Original language description

Thermodynamic stability provides the range of admissible properties of fluids and deformable solids. It also allows determination if a substance can exist in given conditions. When a fluid reaches its limit of thermodynamic stability, it should change phase. In deformable solids, instability may lead to failure, and cracks are formed, the bulk solid stays the same, but work from tension is converted to surface energy. In single-component fluids, thermodynamic stability leads to the dual conditions that the isothermal compressibility and the heat capacity be positive at constant volume. In solids, both in 2D and 3D, the bulk modulus Kand the Lamé constant μshould be positive; these two conditions arise from the mechanical stability. The thermal stability requires that the heat capacity to be positive. The criteria of thermodynamic stability in fluids and deformable solids are often derived on different approaches. In fluids, the derivations are based on a minimum of thermodynamic functions such as internal energy or Helmholtz free energy. In solids, various expressions are based on volumetric behavior, geometrical, dynamic, and energy expressions. We are not aware of generalized derivations for both fluids and solids. In this work, we derive the criteria of thermodynamics stability of fluids, and deformable solids in 1D, 2D, and 3D. The derivations are based on the minimum of the Helmholtz free energy. The motivation from this work is to set a basis for expansion to thermodynamic stability of fluid-solid systems in relation to effect of different fluids on failure of solids

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20303 - Thermodynamics

Project

<a href="/en/project/GA21-09093S" target="_blank" >GA21-09093S: Multiphase flow, transport, and structural changes related to water freezing and thawing in the subsurface</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Fluid Phase Equilibria

ISSN

0378-3812

e-ISSN

1879-0224

Volume of the periodical

549

Issue of the periodical within the volume

113219

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

6

Pages from-to

—

UT code for WoS article

000703584800014

EID of the result in the Scopus database

2-s2.0-85115926483