title: Ð§Ð¸ÑÐ»ÐµÐ½Ð½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÑÑÐ±ÑÐ»ÐµÐ½ÑÐ½Ð¾Ð³Ð¾ ÑÐµÑÐµÐ½Ð¸Ñ Ð²Ð¾ Ð²ÑÐ°ÑÐ°ÑÑÐµÐ¼ÑÑ ÐºÑÑÑÐ¾Ð¸Ð·Ð¾Ð³Ð½ÑÑÐ¾Ð¼ U-Ð¾Ð±ÑÐ°Ð·Ð½Ð¾Ð¼ ÐºÐ°Ð½Ð°Ð»Ðµ Ð¿ÑÐ¸ Ð²Ð°ÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ð¸ Ð¾ÑÐ¸ÐµÐ½ÑÐ°ÑÐ¸Ð¸ ÐºÐ°Ð½Ð°Ð»Ð° Ð¸ Ð³ÐµÐ¾Ð¼ÐµÑÑÐ¸Ð¸ Ð²Ð½ÑÑÑÐµÐ½Ð½ÐµÐ¹ ÑÑÐµÐ½ÐºÐ¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Numerical modeling of turbulent flow in a rotating steeply curved U-shaped channel when the direction of the channel and the geometry of the inner wall are rotated
Creators: name: ÐÐ¾ÑÐ±Ð°ÑÐµÐ²Ð°, ÐÐ¸ÐºÑÐ¾ÑÐ¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: Ð¢ÑÑÐ±ÑÐ»ÐµÐ½ÑÐ½Ð¾Ðµ ÑÐµÑÐµÐ½Ð¸Ðµ
ÐÐ°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
U-Ð¾Ð±ÑÐ°Ð·Ð½ÑÐ¹ ÐºÐ°Ð½Ð°Ð»
Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð°Ñ ÑÐ¾ÑÐ¼Ð°
Ð²ÑÐ°ÑÐµÐ½Ð¸Ðµ ÐºÐ°Ð½Ð°Ð»Ð°
Ð¾ÑÐ¸ÐµÐ½ÑÐ°ÑÐ¸Ñ ÐºÐ°Ð½Ð°Ð»Ð°
Ð³Ð¸Ð´ÑÐ°Ð²Ð»Ð¸ÑÐµÑÐºÐ¸Ðµ Ð¿Ð¾ÑÐµÑÐ¸
U-shaped channel
optimized shape
rotation of the channel
channel orientation
hydraulic loss

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description: Topic of the graduation thesis: "Numerical modeling of turbulent flow in a rotating steeply curved U-shaped channel when the direction of the channel and the geometry of the inner wall are rotated".Â This work is devoted to a numerical study of the flow in a rotating U-shaped channel with an optimized shape of the inner wall for different orientations of the channel curvature plane relative to the rotation axis. The cross section of the channel is square at the inlet and outlet sections. Separate calculations of the comparative directivity were also carried out for the case of a channel with a rectilinear ("standard") inner wall.Â Tasks that were solved in the course of the study:Â Performing verification and methodological calculations, including: the study of grid Â sensitivity, calculations of stationary flow fields in a fixed channel at various values ââof the Reynolds number, comparison with literature data. Performing parametric calculations of three-dimensional turbulent flow in a rotating U-shaped channel with varying channel orientation and rotation intensity.Â  Analysis of the effect of variable parameters on the flow structure in the channel and the level of hydraulic losses. Numerical simulation was carried out using the ANSYS FLUENT software based on the RANS approach and a two-parameter turbulence model. The paper presents the velocity fields in the middle section of the channel, parallel to the end walls, and in several cross sections of the channel. An analysis is given of the influence of the channel orientation and the rotation parameter on the general structure of the simulated vortexflow. For each set of parameters, the values ââof the total pressure loss coefficient are calculated. The results are compared with the values ââof the loss factor obtained for a channel with a rectilinear inner wall. It has beenestablished that in most of the cases considered, the losses in a channel with an optimized wall are significantly lower (from one and a half to two times) than in a channel with a standard inner wall.Â Topic of the graduation thesis: "Numerical modeling of turbulent flow in a rotating steeply curved U-shaped channel when the direction of the channel and the geometry of the inner wall are rotated".Â This work is devoted to a numerical study of the flow in a rotating U-shaped channel with an optimized shape of the inner wall for different orientations of the channel curvature plane relative to the rotation axis. The cross section of the channel is square at the inlet and outlet sections. Separate calculations of the comparative directivity were also carried out for the case of a channel with a rectilinear ("standard") inner wall.Â Tasks that were solved in the course of the study: 1. Performing verification and methodological calculations, including: the study of grid Â sensitivity, calculations of stationary flow fields in a fixed channel at various values ââof the Reynolds number, comparison with literature data. 2. Performing parametric calculations of three-dimensional turbulent flow in a rotating U-shaped channel with varying channel orientation and rotation intensity. 3. Analysis of the effect of variable parameters on the flow structure in the channel and the level of hydraulic losses.Â Numerical simulation was carried out using the ANSYS FLUENT software based on the RANS approach and a two-parameter turbulence model. The paper presents the velocity fields in the middle section of the channel, parallel to the end walls, and in several cross sections of the channel. An analysis is given of the influence of the channel orientation and the rotation parameter on the general structure of the simulated vortex flow. For each set of parameters, the values ââof the total pressure loss coefficient are calculated. The results are compared with the values ââof the loss factor obtained for a channel with a rectilinear inner wall. It has been established that in most of the cases considered, the losses in a channel with an optimized wall are significantly lower (from one and a half to two times) than in a channel with a standard inner wall.