Numerical analysis of turbulence decay in momentumless wakes behind a sphere and a prolate body of revolution
- Autores: Voropaeva O.1,2, Bobkova Y.2
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Afiliações:
- Institute of Computational Technologies, Siberian Branch
- Novosibirsk State University
- Edição: Volume 8, Nº 4 (2016)
- Páginas: 471-485
- Seção: Article
- URL: https://journals.rcsi.science/2070-0482/article/view/201120
- DOI: https://doi.org/10.1134/S2070048216040165
- ID: 201120
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Resumo
The numerical analysis of the characteristics of a turbulent flow in momentumless wakes behind a sphere and a prolate body of revolution in a homogeneous and linearly stratified media is performed. The results of the numerical simulation based on modern second- and third-order models of turbulence agree with the known theoretical and experimental data. The proximity between these flows in a number of inherent properties, including the self-similar turbulence decay in the far wake in a homogeneous medium and the interrelation between the second and third invariants of the Reynolds stress tensor are shown. The problem of the interaction between two regions of turbulent perturbations forming on the motion of a sphere and a prolate body of revolution in a homogeneous medium is considered.
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Sobre autores
O. Voropaeva
Institute of Computational Technologies, Siberian Branch; Novosibirsk State University
Autor responsável pela correspondência
Email: vorop@ict.nsc.ru
Rússia, pr. Akademika Lavrent’eva 6, Novosibirsk, 630090; ul. Pirogova 2, Novosibirsk, 630090
Yu. Bobkova
Novosibirsk State University
Email: vorop@ict.nsc.ru
Rússia, ul. Pirogova 2, Novosibirsk, 630090