dorsal/arxiv
View SchemaFluctuation-dissipation theorems for viscoelastic fluids: consistency of extended thermodynamic theories
| Authors | F. Vazquez, M. A. Olivares-Robles, S. Delgado |
|---|---|
| Categories | |
| ArXiv ID | physics/0306159 |
| URL | https://arxiv.org/abs/physics/0306159 |
Abstract
Fluctuation-Dissipation Relations (FDR) for a Maxwell fluid are computed via the GENERIC formalism. This formalism is determined by four building blocks, two ``potentials'' (total energy and entropy) and two ``matrices'' which determine the dynamics, but the understanding of fluctuations in a given non-equilibrium system is reduced to determining a single friction matrix. The FDR exhibits interesting features, arising from the type of entropy used in the formalism. We show explicitly this dependence FDR-Entropy, also we show that GENERIC renders results consistent with irreversible linear thermodynamics (TIL) \emph{only} if it is used the corresponding entropy. An inconsistent result is provided by GENERIC when it is used a modified entropy .
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"abstract": "Fluctuation-Dissipation Relations (FDR) for a Maxwell fluid are computed via\nthe GENERIC formalism. This formalism is determined by four building blocks,\ntwo ``potentials\u0027\u0027 (total energy and entropy) and two ``matrices\u0027\u0027 which\ndetermine the dynamics, but the understanding of fluctuations in a given\nnon-equilibrium system is reduced to determining a single friction matrix. The\nFDR exhibits interesting features, arising from the type of entropy used in the\nformalism. We show explicitly this dependence FDR-Entropy, also we show that\nGENERIC renders results consistent with irreversible linear thermodynamics\n(TIL) \\emph{only} if it is used the corresponding entropy. An inconsistent\nresult is provided by GENERIC when it is used a modified entropy .",
"arxiv_id": "physics/0306159",
"authors": [
"F. Vazquez",
"M. A. Olivares-Robles",
"S. Delgado"
],
"categories": [
"physics.flu-dyn",
"physics.gen-ph"
],
"title": "Fluctuation-dissipation theorems for viscoelastic fluids: consistency of extended thermodynamic theories",
"url": "https://arxiv.org/abs/physics/0306159"
},
"schema_id": "dorsal/arxiv",
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"type": "Model",
"variant": "snapshot-2026-03-01",
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