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IF 2.4 3区物理与天体物理 Q1 Mathematics

Physical review. E Pub Date : 2024-11-01 DOI:10.1103/PhysRevE.110.055106

Mahendra K Verma, Rodion Stepanov, Alexandre Delache

引用次数: 0

摘要

本文利用流体动力熵对欧拉湍流和流体动力湍流中的多尺度无序进行量化。这些例子说明，流体动力熵并不广泛，因为它与系统大小不成正比。因此，我们不能将分别测量宏观和微观尺度无序的流体动力熵和热力学熵相加。本文还讨论了与时间相关的金兹堡-朗道方程和伊辛自旋的流体动力熵。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Contrasting thermodynamic and hydrodynamic entropy.

In this paper, using hydrodynamic entropy, we quantify multiscale disorder in Euler and hydrodynamic turbulence. These examples illustrate that the hydrodynamic entropy is not extensive because it is not proportional to the system size. Consequently, we cannot add hydrodynamic and thermodynamic entropies, which measure disorder at macroscopic and microscopic scales, respectively. In this paper, we also discuss the hydrodynamic entropy for the time-dependent Ginzburg-Landau equation and Ising spins.

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来源期刊

Physical review. E 物理-物理：流体与等离子体

CiteScore

4.60

自引率

16.70%

发文量

审稿时长

3.3 months

期刊介绍： Physical Review E (PRE), broad and interdisciplinary in scope, focuses on collective phenomena of many-body systems, with statistical physics and nonlinear dynamics as the central themes of the journal. Physical Review E publishes recent developments in biological and soft matter physics including granular materials, colloids, complex fluids, liquid crystals, and polymers. The journal covers fluid dynamics and plasma physics and includes sections on computational and interdisciplinary physics, for example, complex networks.