title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ ÑÐµÑÐµÐ½Ð¸Ñ Ð²ÑÐ·ÐºÐ¾Ð¹ Ð¶Ð¸Ð´ÐºÐ¾ÑÑÐ¸ Ð² Ð¿ÑÐ¾ÑÐ¾ÑÐ½Ð¾Ð¹ ÑÐ°ÑÑÐ¸ Ð¾ÑÐµÐ²ÑÑ Ð½Ð°ÑÐ¾ÑÐ¾Ð² ÑÐ¸Ð¿Ð° Ð-570 Ð¸ Ð-890
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Development of the mathematical model of the viscous liquid flow in the flowing part of the axial flow pumps type L-570 and L-890
Creators: name: ÐÑÑÐµÐ½ÐºÐ¾, ÐÐ°Ð´Ð¸Ð¼
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: 2023
Subjects: Ð¾ÑÐµÐ²Ð¾Ð¹
Ð½Ð°ÑÐ¾Ñ
3D-Ð¼Ð¾Ð´ÐµÐ»Ñ
ÑÐµÑÐºÐ°
ÑÑÑÐ±ÑÐ»ÐµÐ½ÑÐ½Ð¾ÑÑÑ
Ð¿ÑÐ¾ÑÐ¾ÑÐ½Ð°Ñ ÑÐ°ÑÑÑ
SolidWorks
ICEM CFD
Ansys Meshing
TurboGrid
Ansys CFX
ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ñ Ð°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸
Ð²ÐµÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸Ñ
ÐºÐ°Ð²Ð¸ÑÐ°ÑÐ¸Ñ
axial
pump
3D-model
grid
turbulence
flow part
energy characteristics
verification
cavitation

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description: This work is devoted to the research of the viscous liquid flow in the flow-through part of the axial flow pumps L-570 and L-890, including the influence of the impeller sleeve shape on the energy and cavitation properties of the pump. The set tasks were solved on the basis of the set of methods of computational fluid dynamics, data processing and analysis. The adequacy of the grid model used has also been confirmed. Experimental data obtained at the water bench of SPbPUs Hydromechanical Engineering Department were used to verify the numerical calculation data. Computational models on different types of mesh were considered: structured, unstructured, combined with structured supply and return, combined with structured areas of impeller and rectifying apparatus. For this purpose, grid generators were used to discretize the computational domain: "TurboGrid", "ICEM CFD", "Mesh". To describe the flow in the flowing part of pumps, the standard two-parameter k-Îµ turbulence model was used, and to calculate the near-wall flows, the near-wall functions were used. The boundary conditions typical for rotary vane pumps - total energy at the inlet, mass flow rate at the outlet of the calculation area, a variant of coupling rotating and stationary parts of flow path - averaging of local flow parameters (pressure) at the interface surface were used. Based on the results of the research, there is a recommendation for axial-flow pumps of the given velocity to discretize the computational model on the basis of a structured grid. The best energy performance was found when using a mixed curvature sleeve located under the impeller blades. And the maximum cavitation qualities are observed when using a hemispherical sleeve, the center of which is located under the blades.