تقرير
Three-Dimensional Acoustic Turbulence: Weak Versus Strong
| العنوان: | Three-Dimensional Acoustic Turbulence: Weak Versus Strong |
|---|---|
| المؤلفون: | Kochurin, E. A., Kuznetsov, E. A. |
| سنة النشر: | 2024 |
| المجموعة: | Nonlinear Sciences |
| مصطلحات موضوعية: | Nonlinear Sciences - Chaotic Dynamics |
| الوصف: | Direct numerical simulation of three-dimensional acoustic turbulence has been performed for both weak and strong regimes. Within the weak turbulence, we demonstrate the existence of the Zakharov-Sagdeev spectrum $\propto k^{-3/2}$ not only for weak dispersion but in the non-dispersion (ND) case as well. Such spectra in the $k$-space are accompanied by jets in the form of narrow cones. These distributions are realized due to small nonlinearity compared with both dispersion/diffraction. Increasing pumping in the ND case due to dominant nonlinear effects leads to the formation of shocks. As a result, the acoustic turbulence turns into an ensemble of random shocks with the Kadomtsev-Petviashvili spectrum. Comment: 11 pages, 7 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2407.08352 |
| رقم الأكسشن: | edsarx.2407.08352 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |