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进口热斑在无导叶对转涡轮高压级中迁移的控制因素分析 被引量:3

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摘要 为揭示进口热斑在1+1/2(无低压导叶)对转涡轮高压级中迁移的控制因素,运用三维非定常黏性流场计算程序对某1+1/2对转涡轮模型级在有无进口热斑条件下的流场进行数值模拟.结果表明,在进口总压分布相同的条件下,同无进口热斑的工况相比较,进口热斑的引入基本不会对高压涡轮的负荷产生影响,高压涡轮的负荷与进口压力分布直接相关;热斑在高压导叶中未发生周向和展向迁移;热斑在高压动叶中的迁移扩散路径主要由冷热流体在高压动叶入口处的周向气流角、二次流及浮力等3种因素控制.
出处 《中国科学(E辑)》 CSCD 北大核心 2008年第1期55-71,共17页 Science in China(Series E)
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参考文献23

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