Numerical and physical modeling of the circulation flow in a vortex cell in the wall of a rectilinear channel

Baranov, P.A.; Guvernyuk, S.V.; Zubin, M.A.; Isaev, S.A.

Авторы: Baranov P.A., Guvernyuk S.V., Zubin M.A., Isaev S.A.
Журнал: Fluid Dynamics
Том: 35
Номер: 5
Год издания: 2000
Издательство: Maik Nauka/Interperiodica Publishing
Местоположение издательства: Russian Federation
Первая страница: 663
Последняя страница: 673
DOI: 10.1023/A:1026682629971
Аннотация: Numerical and physical simulation of the laminar and turbulent flows in a channel of rectangular cross-section with a circular cavity in one wall has made possible a detailed analysis of the three-dimensional structures in the separation zone. The differences between the laminar and turbulent flow regimes are noted. A common feature of the three-dimensional separation flows is the existence of singular points on the surfaces washed by the fluid; from the vicinities of these points the fluid flows out in the form of swirled jets into the space above these surfaces. The quasi-two-dimensional nature of the flow in the cell is practically undistorted by the above-mentioned three-dimensional effects. The latter are determined by the transverse component of the velocity (i.e., its projection on the x, z plane), which in this case does not exceed 9% of the velocity in the channel. The intensity of the flow in the large-scale vortex depends only slightly on the presence of lateral walls. A maximum of the return flow velocity is reached in the base region of the cell and in the turbulent regime amounts to 40% of the channel flow velocity.
Добавил в систему: Зубин Михаил Адольфович

	ИСТИНА	Войти в систему Регистрация
	ИПМех РАН
	Главная Поиск Статистика О проекте Помощь

ИСТИНА

ИПМех РАН

Numerical and physical modeling of the circulation flow in a vortex cell in the wall of a rectilinear channelстатья

Прикрепленные файлы