渐扩散水跃跃长的研究

吴宇峰; 伍超; 刘小兵

高级搜索

全国中文核心期刊
中国科技核心期刊
美国工程索引（EI）收录期刊

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

渐扩散水跃跃长的研究

吴宇峰, 伍超, 刘小兵

文章导航 > 水科学进展 > 2007 > 18(2): 210-215

吴宇峰, 伍超, 刘小兵. 渐扩散水跃跃长的研究[J]. 水科学进展, 2007, 18(2): 210-215.

引用本文:

吴宇峰, 伍超, 刘小兵. 渐扩散水跃跃长的研究[J]. 水科学进展, 2007, 18(2): 210-215.

WU Yu-feng, WU Chao, LIU Xiao-bing. Length of hydraulic jump in gradually broadened channel[J]. Advances in Water Science, 2007, 18(2): 210-215.

Citation:

WU Yu-feng, WU Chao, LIU Xiao-bing. Length of hydraulic jump in gradually broadened channel[J]. Advances in Water Science, 2007, 18(2): 210-215.

渐扩散水跃跃长的研究

1.
四川大学水力学与山区河流开发保护国家重点实验室, 四川, 成都, 610065;
2.
西华大学能源与环境学院, 四川, 成都, 610039

基金项目: 国家自然科学基金资助项目(50479061)

详细信息

作者简介:
吴宇峰(1975- ),男,四川仪陇人,讲师,博士研究生,主要从事水力学及水电站研究.E-mail:wyy89@sohu.com

中图分类号: TV131.22

Length of hydraulic jump in gradually broadened channel

1.
State Key Laboratory of Hydraulics and Muntain River Engineering, Sichuan University, Chengdu 610065, China;
2.
School of Energy and Environment, Xihua University, Chengdu 610039, China

Funds: The study is financially supported by the National Natural Science Foundation of China(No.50479061).

摘要: 首先通过对作用于渐扩散水跃的压力分析,阐述了渐扩散水跃跃长总比非扩散水跃跃长短的原理。在此理论基础上,考虑边墙扩散角的影响,建立了渐扩散水跃表面质点运动方程,并结合动量方程和连续方程,推导出渐扩散水跃跃长的半理论、半经验公式。同时,引入非扩散水跃跃长经验公式,使渐扩散水跃跃长公式大大简化。其次,对该理论的局限性进行了分析,得到了该公式的适用范围。在该范围内,该公式能较好地吻合实验结果,从而该理论得以证实。最后对各家渐扩散水跃跃长经验公式进行分析归类,并推荐工程适用公式,以便工程运用。
- 渐扩散渠道 /
- 扩散角 /
- 水跃 /
- 跃长 /
- 消力池
Abstract: The length of hydraulic jump in the gradually broadened channels is studied in this paper. Firstly,the hydraulic pressure acting on the hydraulic jump in the gradually broadened channel is analyzed,and why the length of hydraulic jump is always shorter in the gradually broadened channel than in the non-broadened channel expounded Considering the influence of the divergence angles on the jump,an approximate expression for the water surface profile of the jump in the gradually broad ened channel is written based on this analysis From the expression,the momentum equation and the cont inuous equation of the flow,the semi empirical formula for calculating the length of the jump in the gradually broadened channel is derived At the same time,the simplified solution to the semi empirical formula is proposed by employing an empirical formula for calculating the length of hydraulic jump in the non broadened channel Secondly,the limitations of the semi empirical formula are pointed out Based on the limitations,the applicable ranges of the semi empirical formula are obtained In the ranges the validity of the semi empirical formula is verified with the experimental data Lastly,the most empirical formulae for calculating the length of hydraulic jump in the gradually broadened channel are classified and some are recommended for the designers of the stilling basin We hope that the recommendation is useful to the designers.
- gradually broadened channel /
- divergence angle /
- hydraulic jump /
- length of hydraulic jump /
- stilling basin

[1]	Hager H W.Hydraulic jump in non-prismatic rectangular channels[J].Journal of Hydraulic Research,1985,23(1):21-35.
[2]	于志忠.矩形扩散水跃的计算方法[J].水利学报,1982(2):39-45.
[3]	Rajaratnam N,Subramanya K.Hydraulic jump below abrupt symmetrical expansions[J].Journal of Hydraulics Division,1968,94(3):481-503.
[4]	Kolseus H J,Ahmad D.Circular hydraulic jump[J].Proceedings of ASCE,Journal of Hydraulics Division,1969,95(1):409-422.
[5]	Arbhabhirama A,Abella A U.Hydraulic jump within gradually expanding channel[J].Proceedings of ASCE,Journal of Hydraulics Division,1971,97(1):31-42.
[6]	Khalifa A M,McCorquodale J A.Radial hydraulic jump[J].Proceedings of ASCE,Journal of Hydraulics Division,1979,105(9):1 065-1 078.
[7]	吴持恭.《水力学》上册[M].北京:高等教育出版社,1996.356-361.
[8]	吴宝琴,张志恒.矩形扩散水跃水力计算新公式[J].水利水电工程设计,2001(2):42-44.
[9]	Abdel-Gawad,et al.Analysis of the submerged radial hydraulic jump[J].Canadian Journal of Civil Engineering,1985,12(3):593-602.
[10]	SL253-2000.溢洪道设计规范[S].
[11]	詹明安,周建国,黄文政.关于水跃跃长的计算[J].人民长江,1990(3):18-21.
[12]	刘沛清.关于水平矩形渠道中水跃长度的讨论[J].水利学报,1993(1):58-60.

[1]	谭高文, 韩昌海, 余凯文. 低弗劳德数水流二级消力池体型参数试验研究 . 水科学进展, 2018, 29(6): 848-857. doi: 10.14042/j.cnki.32.1309.2018.06.010
[2]	周招, 王均星, 梁砚, 张文传. 深尾水消力池非完全宽尾墩消能试验研究 . 水科学进展, 2017, 28(5): 729-737. doi: 10.14042/j.cnki.32.1309.2017.05.010
[3]	李君宁, 彭勇, 张建民, 姚德生. 微淹没圆形射流空化特性减压试验 . 水科学进展, 2016, 27(4): 594-601. doi: 10.14042/j.cnki.32.1309.2016.04.014
[4]	魏娟, 李然, 康鹏, 刘盛赟. 水流交汇区污染物输移扩散特性 . 水科学进展, 2012, 23(6): 822-828. doi: CNKI: 32.1309.P.20121101.1757.009
[5]	武周虎. 基于环境扩散条件的河流宽度分类判别准则 . 水科学进展, 2012, 23(1): 53-58. doi: CNKI:32.1309.P.20111125.1632.003
[6]	尹则高, 郑清鑫, 王乐, 曹先伟. 渐缩渐扩洞塞消能和空化特性 . 水科学进展, 2012, 23(5): 687-694. doi: CNKI: 32.1309.P.20120824.1606.010
[7]	刘安富, 杨敏, 李会平, 董天松. 宽尾墩消力池透水底板脉动压力试验研究 . 水科学进展, 2012, 23(2): 243-248. doi: CNKI: 32.1309.P.20120224.2002.004
[8]	陈丽萍, 蒋军成, 韩冬梅. 挥发性毒物水气耦合扩散模型 . 水科学进展, 2009, 20(4): 549-553.
[9]	彭勤文. 随机扩散水质模型研究 . 水科学进展, 2006, 17(1): 113-115.
[10]	戴会超, 王玲玲. 淹没水跃的数值模拟 . 水科学进展, 2004, 15(2): 184-188.
[11]	刘焕芳, 苏萍, 李强. 深筒式消力井水力特性试验研究 . 水科学进展, 2002, 13(5): 639-642.
[12]	郑旭荣, 邓志强, 申继红. 顺直河流横向紊动扩散系数 . 水科学进展, 2002, 13(6): 670-674.
[13]	芮孝芳, 石朋. 基于地貌扩散和水动力扩散的流域瞬时单位线研究 . 水科学进展, 2002, 13(4): 439-444.
[14]	王玲玲, 严忠民. 石梁河水库消力池强紊动水流的数值模拟 . 水科学进展, 2002, 13(3): 363-367.
[15]	联合国教科文组织国际水文计划中国国家委员会. 水的安全──人类的基本需要权利联合国秘书长科菲·安南在世界水日的献词 . 水科学进展, 2001, 12(2): 280-280.
[16]	程海云, 芮孝芳, 季学武. 线性扩散波方程解析解及其在水位预报中的应用 . 水科学进展, 1997, 8(2): 130-136.
[17]	马福喜. 一个新紊流模式的检验及其应用 . 水科学进展, 1997, 8(2): 142-147.
[18]	王超. 多孔T型扩散器排放流态特性研究 . 水科学进展, 1995, 6(3): 176-181.
[19]	王超, 吴东敏. 河道扩散器排放近区稀释度研究 . 水科学进展, 1993, 4(4): 309-315.
[20]	刘东生, 郑邦民. 水流热扩散系数的试验研究 . 水科学进展, 1992, 3(1): 8-15.

点击查看大图

计量

文章访问数: 16
HTML全文浏览量: 3
PDF下载量: 510
被引次数: 0

渐扩散水跃跃长的研究

1. 四川大学水力学与山区河流开发保护国家重点实验室, 四川, 成都, 610065;

2. 西华大学能源与环境学院, 四川, 成都, 610039

基金项目: 国家自然科学基金资助项目(50479061)

作者简介:
吴宇峰(1975- ),男,四川仪陇人,讲师,博士研究生,主要从事水力学及水电站研究.E-mail:wyy89@sohu.com

收稿日期: 2005-08-10
修回日期: 2005-12-15
刊出日期: 2007-03-25

中图分类号: TV131.22

关键词:

渐扩散渠道 /

扩散角 /

水跃 /

跃长 /

消力池

摘要: 首先通过对作用于渐扩散水跃的压力分析,阐述了渐扩散水跃跃长总比非扩散水跃跃长短的原理。在此理论基础上,考虑边墙扩散角的影响,建立了渐扩散水跃表面质点运动方程,并结合动量方程和连续方程,推导出渐扩散水跃跃长的半理论、半经验公式。同时,引入非扩散水跃跃长经验公式,使渐扩散水跃跃长公式大大简化。其次,对该理论的局限性进行了分析,得到了该公式的适用范围。在该范围内,该公式能较好地吻合实验结果,从而该理论得以证实。最后对各家渐扩散水跃跃长经验公式进行分析归类,并推荐工程适用公式,以便工程运用。

English Abstract

Length of hydraulic jump in gradually broadened channel

1. State Key Laboratory of Hydraulics and Muntain River Engineering, Sichuan University, Chengdu 610065, China;

2. School of Energy and Environment, Xihua University, Chengdu 610039, China

Funds: The study is financially supported by the National Natural Science Foundation of China(No.50479061).

Received Date: 2005-08-10
Rev Recd Date: 2005-12-15
Publish Date: 2007-03-25

Keywords:

Abstract: The length of hydraulic jump in the gradually broadened channels is studied in this paper. Firstly,the hydraulic pressure acting on the hydraulic jump in the gradually broadened channel is analyzed,and why the length of hydraulic jump is always shorter in the gradually broadened channel than in the non-broadened channel expounded Considering the influence of the divergence angles on the jump,an approximate expression for the water surface profile of the jump in the gradually broad ened channel is written based on this analysis From the expression,the momentum equation and the cont inuous equation of the flow,the semi empirical formula for calculating the length of the jump in the gradually broadened channel is derived At the same time,the simplified solution to the semi empirical formula is proposed by employing an empirical formula for calculating the length of hydraulic jump in the non broadened channel Secondly,the limitations of the semi empirical formula are pointed out Based on the limitations,the applicable ranges of the semi empirical formula are obtained In the ranges the validity of the semi empirical formula is verified with the experimental data Lastly,the most empirical formulae for calculating the length of hydraulic jump in the gradually broadened channel are classified and some are recommended for the designers of the stilling basin We hope that the recommendation is useful to the designers.

吴宇峰, 伍超, 刘小兵. 渐扩散水跃跃长的研究[J]. 水科学进展, 2007, 18(2): 210-215.

引用本文:

吴宇峰, 伍超, 刘小兵. 渐扩散水跃跃长的研究[J]. 水科学进展, 2007, 18(2): 210-215.

WU Yu-feng, WU Chao, LIU Xiao-bing. Length of hydraulic jump in gradually broadened channel[J]. Advances in Water Science, 2007, 18(2): 210-215.

Citation:

WU Yu-feng, WU Chao, LIU Xiao-bing. Length of hydraulic jump in gradually broadened channel[J]. Advances in Water Science, 2007, 18(2): 210-215.