Modeling of swirling flows with coherent structures using the unsteady Reynolds stress transport model


Тип публикации: статья из журнала

Год издания: 2015

Идентификатор DOI: 10.1134/S001546281504002X

Ключевые слова: swirling flows, turbulence, Reynolds stress transport model, URANS, RSM, Axial flow, Reynolds equation, Reynolds number, Vortex flow, Vorticity, Re-circulation flow, Recirculation zones, Reynolds stress tensors, Reynolds stress transport equations, Reynolds stress transport models, Turbulent transports, Swirling flow

Аннотация: Swirling flows are investigated using an unsteady model based on the Reynolds stress transport equations. Swirling flows with vortex core precession are considered, namely, the swirling flow behind an abrupt expansion and the swirling flow in a burner with an annular fuel inlet. The method under consideration is shown to well reproПоказать полностьюduce the recirculation flow formed as a result of the vortex core precession, with respect to both mean and fluctuation parameters. At the same time, the calculations in accordance with the unsteady model prolong the central recirculation zone. It is established that the contributions made by the resolvable and modeled components of the Reynolds stress tensor to the turbulent transport are comparable.

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Выпуск журнала: Vol. 50, Is. 4

Номера страниц: 471-482

ISSN журнала: 00154628

Место издания: NEW YORK



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