摘要
本文通过对五种不同堰角的薄壁三角堰进行的浑、清水出流能力对比试验研究，得出了浑水出流系数经验公式。结果表明，当堰口名义有效雷诺数Ｒｅｍ＜１０００时，高含沙水流出流能力将降低，在Ｒｅｍ＜１０时，浑水出流能力可降低３５％。并对浑水贴壁流形成机理进行了理论分析，了形成贴壁流的临界堰上水头与有效粘度的关系。
This paper studied and analyzed the measurement characteristics of high concentrated muddy flow in triangular thin plate weir. The relation of Cm/Co, discharge coefficient ratio of muddy flow to fresh flow, and effective Renold's number has been established. The result showed that the discharge coefficient of high concentrated muddy flow significantly reduced as compared with that of the fresh flow. The no nappe flow formed very easily for muddy flow, and the needed critical water head for forming nappe has been derived.
出处
《泥沙研究》
CSCD
北大核心
1994年第3期82-88,共7页
Journal of Sediment Research
