Numerical study of the centrifugal contra rotating blade system

Kulikov, Oleksandr; Ratushnyi, Oleksandr; Kovaliov, I. A.; Mandryka, A; Ignatiev, A S

doi:10.1088/1742-6596/1741/1/012008

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…The pump's impeller rotates clockwise, and the blade disc rotates counterclockwise. This creates a contra-rotating effect between the discs (bd), which transmits much more energy to the fluid than conventional centrifugal pumps [1][2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Impact of the Closed, Semi-Opened, and Combined Contra-Rotating Stages on Volume Loss Characteristics

Kulikov

Ratushnyi

Moloshnyi

et al. 2022

JES

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The article is devoted to studying the contra-rotating stages with different impellers and blade discs. Determining the reduction of volumetric losses by modeling the contra-rotating stages in the software package ANSYS CFX. The work aimed to create and study the flow and characteristics: semi-open, closed impellers, and blade discs. As a result of the work, the following contra-rotating stages were determined and compared: the semi-opened impeller with the semi-opened blade disc; the closed impeller with the closed blade disc; the semi-opened impeller with the closed blade disc; the closed impeller with the semi-opened blade disc. As a result of research, fluid flows in contra-rotating stages and their characteristics in the form of pressure and efficiency were obtained. According to the obtained data, the expediency of using contra-rotating stages as a working body of the pump is written.

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