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Isotropization of two-dimensional hydrodynamic turbulence in the direct cascade. / Kuznetsov, E. A.; Sereshchenko, E. V.

In: JETP Letters, Vol. 105, No. 2, 01.01.2017, p. 83-88.

Research output: Contribution to journal › Article › peer-review

Harvard

Kuznetsov, EA & Sereshchenko, EV 2017, 'Isotropization of two-dimensional hydrodynamic turbulence in the direct cascade', JETP Letters, vol. 105, no. 2, pp. 83-88. https://doi.org/10.1134/S0021364017020102

APA

Kuznetsov, E. A., & Sereshchenko, E. V. (2017). Isotropization of two-dimensional hydrodynamic turbulence in the direct cascade. JETP Letters, 105(2), 83-88. https://doi.org/10.1134/S0021364017020102

Vancouver

Kuznetsov EA, Sereshchenko EV. Isotropization of two-dimensional hydrodynamic turbulence in the direct cascade. JETP Letters. 2017 Jan 1;105(2):83-88. doi: 10.1134/S0021364017020102

Author

Kuznetsov, E. A. ; Sereshchenko, E. V. / Isotropization of two-dimensional hydrodynamic turbulence in the direct cascade. In: JETP Letters. 2017 ; Vol. 105, No. 2. pp. 83-88.

BibTeX

@article{2f5b328f56a5435797f4c3da166c02e7,
title = "Isotropization of two-dimensional hydrodynamic turbulence in the direct cascade",
abstract = "We present results of numerical simulation of the direct cascade in two-dimensional hydrodynamic turbulence (with spatial resolution up to ). If at the earlier stage (at the time of order of the inverse pumping growth rate τ-Γmax −1), the turbulence develops according to the same scenario as in the case of a freely decaying turbulence [1, 2]: quasi-singular distribution of di-vorticity are formed, which in k-space correspond to jets, leading to a strong turbulence anisotropy, then for times of the order of 10τ turbulence becomes almost isotropic. In particular, at these times any significant anisotropy in the angular fluctuations for the energy spectrum (for a fixed k) is not visible, while the probability distribution function of vorticity for large arguments has the exponential tail with the exponent linearly dependent on vorticity, in the agreement with the theoretical prediction [3].",
keywords = "ENERGY-SPECTRUM, DYNAMICS",
author = "Kuznetsov, {E. A.} and Sereshchenko, {E. V.}",
year = "2017",
month = jan,
day = "1",
doi = "10.1134/S0021364017020102",
language = "English",
volume = "105",
pages = "83--88",
journal = "JETP Letters",
issn = "0021-3640",
publisher = "MAIK NAUKA/INTERPERIODICA/SPRINGER",
number = "2",

}

RIS

TY - JOUR

T1 - Isotropization of two-dimensional hydrodynamic turbulence in the direct cascade

AU - Kuznetsov, E. A.

AU - Sereshchenko, E. V.

PY - 2017/1/1

Y1 - 2017/1/1

N2 - We present results of numerical simulation of the direct cascade in two-dimensional hydrodynamic turbulence (with spatial resolution up to ). If at the earlier stage (at the time of order of the inverse pumping growth rate τ-Γmax −1), the turbulence develops according to the same scenario as in the case of a freely decaying turbulence [1, 2]: quasi-singular distribution of di-vorticity are formed, which in k-space correspond to jets, leading to a strong turbulence anisotropy, then for times of the order of 10τ turbulence becomes almost isotropic. In particular, at these times any significant anisotropy in the angular fluctuations for the energy spectrum (for a fixed k) is not visible, while the probability distribution function of vorticity for large arguments has the exponential tail with the exponent linearly dependent on vorticity, in the agreement with the theoretical prediction [3].

AB - We present results of numerical simulation of the direct cascade in two-dimensional hydrodynamic turbulence (with spatial resolution up to ). If at the earlier stage (at the time of order of the inverse pumping growth rate τ-Γmax −1), the turbulence develops according to the same scenario as in the case of a freely decaying turbulence [1, 2]: quasi-singular distribution of di-vorticity are formed, which in k-space correspond to jets, leading to a strong turbulence anisotropy, then for times of the order of 10τ turbulence becomes almost isotropic. In particular, at these times any significant anisotropy in the angular fluctuations for the energy spectrum (for a fixed k) is not visible, while the probability distribution function of vorticity for large arguments has the exponential tail with the exponent linearly dependent on vorticity, in the agreement with the theoretical prediction [3].

KW - ENERGY-SPECTRUM

KW - DYNAMICS

UR - http://www.scopus.com/inward/record.url?scp=85018501592&partnerID=8YFLogxK

U2 - 10.1134/S0021364017020102

DO - 10.1134/S0021364017020102

M3 - Article

AN - SCOPUS:85018501592

VL - 105

SP - 83

EP - 88

JO - JETP Letters

JF - JETP Letters

SN - 0021-3640

IS - 2

ER -

ID: 9050470