Numerical analysis of turbulence decay in momentumless wakes behind a sphere and a prolate body of revolution
- Авторлар: Voropaeva O.1,2, Bobkova Y.2
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Мекемелер:
- Institute of Computational Technologies, Siberian Branch
- Novosibirsk State University
- Шығарылым: Том 8, № 4 (2016)
- Беттер: 471-485
- Бөлім: Article
- URL: https://journals.rcsi.science/2070-0482/article/view/201120
- DOI: https://doi.org/10.1134/S2070048216040165
- ID: 201120
Дәйексөз келтіру
Аннотация
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.
Негізгі сөздер
Авторлар туралы
O. Voropaeva
Institute of Computational Technologies, Siberian Branch; Novosibirsk State University
Хат алмасуға жауапты Автор.
Email: vorop@ict.nsc.ru
Ресей, pr. Akademika Lavrent’eva 6, Novosibirsk, 630090; ul. Pirogova 2, Novosibirsk, 630090
Yu. Bobkova
Novosibirsk State University
Email: vorop@ict.nsc.ru
Ресей, ul. Pirogova 2, Novosibirsk, 630090