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요약정보
基于固液两相流的水轮机蜗壳磨损分析 / Wear Analysis of Turbine Volute Based on Solid-liquid Two-phase Flow
Resource Type
Academic Journal
Authors
张绒
;
ZHANG Rong
Source
价值工程 / Value Engineering
. 41(31):83-85
Subject
水轮机
蜗壳
固液两相流
泥沙磨损
Language
Chinese
ISSN
1006-4311
Online Access
초록
蜗壳是水轮机必不可少的引水构件,为了能准确分析蜗壳在含沙水中的磨损情况,本文基于CFD技术,应用RNG k-ε湍流模型对不同泥沙工况下的水轮机蜗壳进行了固液两相流数值计算,并得到了蜗壳的泥沙体积分布图,根据分布图分析了蜗壳的泥沙磨损情况.结果表明,在含沙水中,蜗壳表面的泥沙分布量由外到内径向减小,鼻端泥沙量最大,最易磨损.随着泥沙粒径及泥沙浓度的增大,蜗壳表面的泥沙分布量也逐渐增大,蜗壳越容易遭受磨损破坏,而且同一个地方磨损程度越严重.
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