RESEARCH ON THE CONDITION TO SET A TAILRACE SURGE TANK水动力学研究与进展：英文版论文
【题名】：RESEARCH ON THE CONDITION TO SET A TAILRACE SURGE TANK水动力学研究与进展：英文版论文(RESEARCH ON THE CONDITION TO SET A TAILRACE SURGE TANKShuiDongLiXueYanJiuYuJinZhan：YingWenBanLunWen) 【关键词】：退水涌浪槽 临界退水长度 水锤 水动力学 临界长度 数值模拟 【keywords】：TuiShuiYongLangCao LinJieTuiShuiChangDu ShuiChui ShuiDongLiXue LinJieChangDu ShuZhiMoNi 【作者】：ZHAOGui-lian,YANGjian-dong,XUYuan-jie,LIJin-ping,      【来源】： 知识词典 【期刊名称】：水动力学研究与进展：英文版(ShuiDongLiXueYanJiuYuJinZhan：YingWenBan) 【国际标准刊号】：1001-6058        【国内统一刊号】：31-1563/T 【作者单位】：[1]StateKeyLaboratoryofWaterResourcesandHydropowerEngineeringScience,WuhanUniversity,Wuhan430072,China [2]SchoolofCivilandArchitecturalEngineering,WuhanUniversity,Wuhan430072,China([1]StateKeyLaboratoryofWaterResourcesandHydropowerEngineeringScience,WuhanUniversity,Wuhan430072,China [2]SchoolofCivilandArchitecturalEngineering,WuhanUniversity,Wuhan430072,China) 【分类号】：TV131.2      【页码】：-486-491      【出版年】：2004.4         When using the draft-tube vacuum to be less than 8. 0m as the rule to set a tailrace surge tank, a mixing function that describes the process of water-hammer vacuum and velocity-head vacuum varied with time is proposed, on the assumption that the guide vane of the hydraulic turbine and the turbine discharge were all changed linearly. An exact maximum of the draft-tube vacuum for the first-phase waterhammer and the last-phase water-hammer is obtained. Finally a much more reasonable formula of critical tailrace length is derived. The results of two cases show that the formula proposed can determine correctly and reasonably whether a tailrace surge tank is needed or not, and are more suitable for project design than the formula suggested by the specification.
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