Generation of Nonhomogeneous Turbulent Velocity Fields by Modified Randomized Spectral Method

The present study addresses the sensitivity analysis of particle concentration dispersion in the turbulent flow. A stochastic spectral model of turbulence is used to simulate the particle transfer. Sensitivity analysis is performed by estimations of Morris and Sobol indices. This study allows to define the significant and nonsignificant model parameters. It also gives an idea of the qualitative behavior of the stochastic model used.

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Генерация Анизотропных Турбулентных Полей Скорости На Основе Рандомизированного Спектрального Метода

Aleksandrov¹,

Alexandrov

Dorodnitsyn³

et al. 2021

Матем. моделирование

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Предлагается методика генерации синтетических полей турбулентных пульсаций скорости, основанная на рандомизированном спектральном методе. Генерируемые поля обладают нулевой дивергенцией и заданными свойствами анизотропии и пространственной неоднородности. Расчет канонической задачи о развитом турбулентном течении в канале, использующий сгенерированные турбулентные поля, демонстрирует хорошее совпадение результатов с данными прямого численного моделирования.

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Generation of Nonhomogeneous Turbulent Velocity Fields by Modified Randomized Spectral Method

Cited by 4 publications

References 13 publications

Generation of Anisotropic Turbulent Velocity Fields Based on a Randomized Spectral Method

Generation of Anisotropic Turbulent Velocity Fields Based on a Randomized Spectral Method

Sensitivity analysis of the concentration transport estimation in a turbulent flow

Генерация Анизотропных Турбулентных Полей Скорости На Основе Рандомизированного Спектрального Метода

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