Open AccessGeneration of a random anisotropic incompressible turbulent velocity field in accordance with the calculated flow statistics
Author(s) -
Anatoly Vitalievich Alexandrov,
L. W. Dorodnicyn,
A. P. Duben,
Dmitriy Kolyukhin
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1715/1/012059
Subject(s) - turbulence , reynolds stress , anisotropy , compressibility , field (mathematics) , vector field , reynolds number , physics , statistical physics , flow (mathematics) , tensor (intrinsic definition) , mechanics , mathematics , classical mechanics , geometry , optics , pure mathematics
On the base of Randomized Spectral Method (RSM), a new stochastic algorithm for the generation of homogeneous anisotropic turbulent velocity fields has been developed. This technique provides incompressibility of the obtained velocity field realizations simultaneously with the two main required statistical properties—the Reynolds-stress tensor and the turbulent energy spectrum. The method is computationally efficient and can easily be extended to the case of inhomogeneous turbulence.