Тип публикации: статья из журнала
Год издания: 2021
Идентификатор DOI: 10.1134/S0869864321030045
Ключевые слова: hydrofoil, numerical modeling, turbulence, rsm
Аннотация: The paper presents the results of numerical simulation of three-dimensional turbulent flow around a hydraulic turbine guide vane at the angle of attack of 9 degrees with the aspect ratio of the foil equal to 0.8. The influence of turbulence modeling variants on 3D flow effects is analyzed. The 3D boundary layer separation at the vaПоказать полностьюne-sidewall junctions and the flow separation near the trailing edge influence the flow pattern. The study considered various approaches for modeling of a turbulent flow, such as the k-omega SST turbulent viscosity model and several variants of the differential and algebraic Reynolds stress models. At the given angle of attack, the k-omega SST model shows a significant separation zone in the corners between the wall and the vane, while no separation of the flow in the central plane is observed. Both differential and algebraic Reynolds stress models reproduce the secondary vortex flow at the corners and suppress the flow separation near the central cross section.
Журнал: THERMOPHYSICS AND AEROMECHANICS
Выпуск журнала: Vol. 28, Is. 3
Номера страниц: 337-346
ISSN журнала: 08698643
Место издания: NEW YORK
Издатель: PLEIADES PUBLISHING INC