中文核心期刊
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Journal of Chongqing Jiaotong University(Natural Science)

Journal of Chongqing Jiaotong University(Natural Science) ›› 2009, Vol. 28 ›› Issue (5): 855-860.DOI: 10.3969/j.issn.1674-0696.2009.05.12

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Numerical?Study?on?Configuration?Optimization?of?High?Head??Large?Flood?Discharge?Tunnel

YANG Zhong-chao1, DiAOMing-jun2, DENG Jun2   

  1. ?1.?Key?Laboratory?of?Inland?Waterway?Regulation?Engineering?of?Ministry?of?Communication,?Chongqing?Jiaotong?University,?Chongqing?400074,?China?;2.?State?Key?Laboratory?of?Hydraulics?＆?Mountain?River?Engineering,?Sichuan?University,?Sichuan?Chengdu?610065,?China
  • Received:2009-06-05 Revised:2009-07-01 Online:2009-10-15 Published:2015-04-15

高水头大流量泄洪隧洞体型优化数值模拟研究

杨忠超1,刁明军2,邓??军2   

  1. 1.重庆交通大学内河航道整治技术交通行业重点实验室,重庆400074; 2.四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
  • 作者简介:杨忠超(1972—),男,四川眉山人,副研究员,博士后,主要从事水力学及河流动力学和计算流体力学研究方面的 工作。E-mail:yangzc998@yahoo.com.cn。
  • 基金资助:
    重庆市教委基金项目( K J 050408); 重庆市科委基金项目( CSTC 2006 EA 6008); 重庆交通大学人才启动基金项目 ( 2005??01??16)

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Abstract: The?flood?discharge?process?of?3#?flood?discharge?tunnel?at?Xiluodu?Power?Station?in?Jinsha?River?has?been?simulated?successfully?by?means?of?k-8?turbulence?model?and?VOF（?Volume?of?Fluid）methods.?Aiming?at?the?problems?that?the?length?and?the?height?of?the?second?and?third?aeration?cavity?is?too?small,?and?the?local?cavitation?number?is?too?low,?the?flood?discharge?configuration?is?optimized?and?aeration?banks?are?adjusted,?so?that?the?pressure?of?the?flood?discharge?tunnel?inclines?to?distribute?more?homogenous?and?the?distribution?of?cavitation?number?inclines?to?stable,?which?promotes?the?character?of?flow?cavitation?erosion.?In?addition,?the?aeration?space?is?enlarged?so?as?to?extend?the?protecting?length?of?cavitation?erosion?of?flood?discharge?tunnel.

Key words: flood discharge tunnel , configuration optimization , turbulent numerical simulation , volume of fluid （VOF） method , cavitation erosion ;

摘要： 采用VOF法和k-??紊流模型相结合对金沙江溪洛渡水电站3#泄洪隧洞泄洪过程进行了数值模拟,针对设 计体型存在的第二、第三级掺气坎的掺气空腔长度和高度偏小,龙落尾段的水流流速过高,空化数局部偏小的问 题,优化了泄洪隧洞奥奇段体型,调整了掺气坎的布置,使泄洪隧道压强分布更趋均匀,空化数分布趋于平稳,从而 改善了泄洪隧洞水流的空蚀空化特性。同时增大了掺气空间,加大了泄洪隧洞的掺气保护长度。

关键词: 泄洪隧洞, 优化体型, 紊流数值模拟, VOF法, 空蚀

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