O. Shubenko, S. Alyokhina, V. Goloshchapov, Olga Kotulska, D. Senetska
{"title":"Separation near the bushing of the flow in the outlet nozzle of the steam turbine at the low-flow rate modes","authors":"O. Shubenko, S. Alyokhina, V. Goloshchapov, Olga Kotulska, D. Senetska","doi":"10.46299/j.isjea.20230202.05","DOIUrl":null,"url":null,"abstract":"The paper considers the movement of steam flow from the working wheel of the last stage with a large fanning to the outlet nozzle of a steam turbine, considering the conditions for the formation of the separation near the bushing in a wide range of mode changes. An assessment was made of the initiation and development of the separation near the bushing in the space of the outlet nozzle of the steam turbine. To analyze the formation of the movement of the working medium in the free space of the outlet nozzle, an axisymmetric flow model is used, which is described by the equation of the hyperboloid of rotation.","PeriodicalId":120311,"journal":{"name":"International Science Journal of Engineering & Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Science Journal of Engineering & Agriculture","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.46299/j.isjea.20230202.05","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The paper considers the movement of steam flow from the working wheel of the last stage with a large fanning to the outlet nozzle of a steam turbine, considering the conditions for the formation of the separation near the bushing in a wide range of mode changes. An assessment was made of the initiation and development of the separation near the bushing in the space of the outlet nozzle of the steam turbine. To analyze the formation of the movement of the working medium in the free space of the outlet nozzle, an axisymmetric flow model is used, which is described by the equation of the hyperboloid of rotation.
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