Generation of a random anisotropic incompressible turbulent velocity field in accordance with the calculated flow statistics

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 stat...

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Bibliographic Details
Published in:Journal of physics. Conference series 2021-01, Vol.1715 (1), p.12059
Main Authors: Alexandrov, A V, Dorodnicyn, L W, Duben, A P, Kolyukhin, D R
Format: Article
Language:English
Subjects:
Algorithms
Energy spectra
Fluid flow
Incompressibility
Incompressible flow
Physics
Spectral methods
Tensors
Turbulence
Turbulent flow
Velocity distribution
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Summary: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.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1715/1/012059