تقرير
Hydrodynamic Entropy and Emergence of Order in Two-dimensional Euler Turbulence
| العنوان: | Hydrodynamic Entropy and Emergence of Order in Two-dimensional Euler Turbulence |
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| المؤلفون: | Verma, Mahendra K., Chatterjee, Soumyadeep |
| المصدر: | Physical Review FLUIDS 7, 114608 (2022) |
| سنة النشر: | 2022 |
| المجموعة: | Condensed Matter Nonlinear Sciences Physics (Other) |
| مصطلحات موضوعية: | Condensed Matter - Statistical Mechanics, Nonlinear Sciences - Chaotic Dynamics, Physics - Fluid Dynamics, Physics - Plasma Physics |
| الوصف: | Using numerical simulations, we show that the asymptotic states of two-dimensional (2D) Euler turbulence exhibit large-scale flow structures due to nonzero energy transfers among small wavenumber modes. These asymptotic states, which depend on the initial conditions, are out of equilibrium, and they are different from the predictions of Onsager and Kraichnan. We propose ``hydrodynamic entropy'' to quantify order in 2D Euler turbulence; we show that this entropy decreases with time, even though the system is isolated with no dissipation and no contact with a heat bath. |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevFluids.7.114608 |
| URL الوصول: | http://arxiv.org/abs/2210.06445 |
| رقم الأكسشن: | edsarx.2210.06445 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevFluids.7.114608 |
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