LI Yun,MA Guomin,LI Chaochao,et al.Optimization of Flow Characteristics and Diffusion Angles of Forward Inflow Forebay of Pumping Station[J].PEARL RIVER,2025,46(07):122-131.
LI Yun,MA Guomin,LI Chaochao,et al.Optimization of Flow Characteristics and Diffusion Angles of Forward Inflow Forebay of Pumping Station[J].PEARL RIVER,2025,46(07):122-131. DOI: 10.3969/j.issn.1001-9235.2025.07.012.
散角度和不同泵站机组开关数量对前池内流场结构的影响。结果表明:①随着扩散角度的增加,前池流态漩涡数量由1个增加至2个,扩散角度为25、30°时,漩涡面积占进水前池面积较小,流场结构较稳定;②当泵站开启的数量由5台减少至2台,前池的漩涡的面积由31.42 m
2
下降至10.15 m
2
,当开启3、4号泵站时可以得到较好的前池流态。研究成果可为同类泵站的设计和更新改造提供参考和指导。
Abstract
To address issues arising from chaotic water flow due to unreasonable pumping station operation and insufficient forebay design
this study took the Yanhuangding pumping station as a typical case. Numerical simulations using FLUENT software were conducted to examine different forebay patterns based on the Realizable turbulence model and the Eulerian multiphase flow model. The influences of different diffusion angles and different number of operating pumping stations on the flow field structure in the forebay were expounded. The results show that: ① As the diffusion angle increases
the number of vortices in the forebay flow rises from one to two. At diffusion angles of 25°and 30°
the vortex area occupies less of the forebay inflow
resulting in a more stable flow field. ② Reducing the number of operating pumping stations from five to two decreases the vortex area in the forebay from 31.42 m
2
to 10.15 m
2
with optimal forebay flow achieved when operating pumping stations 3# and 4#. The research results can provide reference and guidance for the design and renovation of similar pumping stations.
CONSTANTINESCU S G , PATE V C . Role of turbulence model in prediction of pump-bay vortices [J]. Journal of Hydraulic Engineering , 2000 , 126 ( 5 ): 387 - 391 .
CONSTANTINESCU S G , PATE V C . Role of turbulence model in prediction pump-bay vortices [J]. Journal of Hydraulic Engineering , 2000 ( 5 ). DOI: 10.1061/(ASCE)0733-9429(2000)126:5(387 http://dx.doi.org/10.1061/(ASCE)0733-9429(2000)126:5(387 ).