Impact of the Closed, Semi-Opened, and Combined Contra-Rotating Stages on Volume Loss Characteristics
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Published:2022
Issue:1
Volume:9
Page:D6-D13
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ISSN:2414-9381
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Container-title:Journal of Engineering Sciences
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language:en
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Short-container-title:JES
Author:
Kulikov Oleksandr1ORCID, Ratushnyi Оleksandr1ORCID, Moloshnyi Oleksandr2ORCID, Ivchenko Oleksandr1ORCID, Pavlenko Ivan1ORCID
Affiliation:
1. Sumy State University 2. Pompax Ltd., Wroclaw, Lower Silesia, Poland
Abstract
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.
Publisher
Sumy State University
Subject
General Materials Science
Reference11 articles.
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