{
  "id": "2211.09430",
  "version": "v1",
  "published": "2022-11-17T09:27:11.000Z",
  "updated": "2022-11-17T09:27:11.000Z",
  "title": "Direct numerical simulation of acoustic turbulence: Zakharov-Sagdeev spectrum",
  "authors": [
    "E. A. Kochurin",
    "E. A. Kuznetsov"
  ],
  "comment": "6 pages, 6 figures",
  "journal": "JETP Letters, v. 116, i. 12 (2022)",
  "categories": [
    "physics.flu-dyn"
  ],
  "abstract": "We present the results of direct numerical simulation of three-dimensional acoustic turbulence in medium with weak positive dispersion. It is shown that at the beginning of the long-wavelength region in the turbulence energy distribution in the $k$-space, there are formed jets in the form of narrow cones. At larger wavenumbers, the cones broaden, and the distribution accordingly tends to isotropic. In this region of wavenumbers, the angle-averaged turbulence spectrum acquires a power-law character, $E(k)\\propto k^{-\\alpha}$, with the exponent close to $3/2$, which corresponds to the Zakharov-Sagdeev weak acoustic turbulence spectrum.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-11-17T09:27:11.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "direct numerical simulation",
      "zakharov-sagdeev spectrum",
      "zakharov-sagdeev weak acoustic turbulence spectrum",
      "turbulence energy distribution",
      "three-dimensional acoustic turbulence"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}