期刊文献+

坎深和入池能量对跌坎型底流消能工流态影响的数值模拟 被引量:11

Numerical Simulation on the Influence of Step-down Depth and Intake Energy to the Flow Pattern of Step-down Hydraulic Jump Dissipater
下载PDF
导出
摘要 跌坎型底流消能工是建立在常规底流消能工基础上的一种消能方式,相对于常规底流消能工能有效降低消力池的临底水力学指标。本文采用RNGk-ε双方程紊流模型进行数值模拟;数值计算采用SIMPLE算法的改进的算法PISO算法;对于自由水面线,采用VOF方法对进行追踪模拟。并对计算结果与物理模型观测值进行了对比,两者结果具有较好的一致性。 The step-down hydraulic jump dissipater, as a conventional hydraulic jump dissipater,is more effective in reducing the hydraulic index of the baffle basin than the conventional hydraulic jump dissipater. The paper adopts the RNG κ-ε double equation turbulent model to process thenumerical simulation and the numerical value is calculated through adopting the PISO calculation which is improved from the SIMPLE calculation. Meanwhile,the method of VOF is adopted to have simulation on the surface profile and the results of calculation and model observation are compared so that the results are more consistent.
出处 《南水北调与水利科技》 CAS CSCD 2008年第2期69-71,共3页 South-to-North Water Transfers and Water Science & Technology
基金 云南省自然科学基金(项目编号:2006A0018M)
关键词 底流消能 数值模拟 跌坎型消能工 energy dissipation by hydraulic jump numerical simulation step-down hydraulic jump dissipater
  • 相关文献

参考文献2

二级参考文献14

  • 1许唯临,廖华胜,杨永全,吴持恭.水垫塘三维紊流数值模拟及消能分析[J].水动力学研究与进展(A辑),1996,11(5):561-569. 被引量:31
  • 2Hager W H.B-jumps at abrupt channel drops [J].J.Hydr.Engrg.,ASCE,1985,111 (5):861- 866.
  • 3Katakam V.Seetha Ram,Rama Prasad,Spatial B-Jump at channel enlargements with abrupt drop [J].J.Hydr.Engrg.,ASCE,1998,124 (6):646-646.
  • 4Iwao ohtsu,Youichi Yasuda,Motoyasu Ishikawa.Submerged hydraulic jump below abrupt expansions [J].J.Hydr.Engrg.,ASCE,1999,125 (5):492-499.
  • 5Karim O A K,Mali K H M.Prediction of flow patterns in local scour holes caused by turbulent water jets [ J ].Journal of Hydraulic Research,2000,38 (4):279- 287.
  • 6Charles Speziale G,Thomas Gatski B,Neassan Fitzmaurice.An analysis of RNG base turbulent models for homogeneous shear flow [J].Phys Fluids,1991,3 (9):2278-2281.
  • 7Rajanatnam N, Subramanya K.Hydraulic jumps below abrupt symmetrical expansions[J].J.Hydr.Div.,ASCE,1968,94(2):481-503.
  • 8Hager W H.Hydraulic jump in non-prismatic rectangular channels[J].J.Hydr.Res.Delf,The Netherlands,1985,23(1):21-25.
  • 9Iwao Ohtsu,Youichi Yasuda,and Motoyasu Ishikawa.Submerged hydraulic jump below abrupt expansions[J].J.Hydr.Engrg.,ASCE,1999,125(5):492-499.
  • 10Katakam V,Seetha Ram, Rama Prasad.Spatial B-Jump at channelenlargements with abrupt drop[J].J.Hydr.Engrg.,ASCE,1998,124(6):646-656.

共引文献62

同被引文献73

引证文献11

二级引证文献47

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部