摘要
本文采用k-ε双方程紊流数学模型,对甘肃九甸峡水电站左岸双洞式溢洪洞联合泄洪情形下从库区,进水口,溢流堰,陡坡,反弧段直至下游斜坡的全流场进行了数值模拟研究。获得了水深、流速、压力、空化数等水力要素的沿程分布规律。计算结果与模型试验的对比分析表明,数值模拟能够较好地模拟溢洪洞的泄流过程。根据研究的结果,提出了对左岸1号及2号溢洪洞进口形式和堰面体型的修改意见。
Using k-ε two equation model, the complicated turbulent overflow is simulated in the bi-tunnel spillway of Jiudianxia hydropower station in Gansu Province. The computed area covers the reservoir region, intake section, spillway crest, steep, ogee-section and downstream slope. The obtained hydrodynamic characters include the depth of flow, velocity distribution, pressure distribution and the variation of cavitation along the flood discharge tunnel. Comparison between the numerical results and model test data shows a satisfactory agreement. Based on these results, some suggestions are put forward for the modification of the intake and spillway crest.
出处
《水力发电学报》
EI
CSCD
北大核心
2007年第1期56-60,共5页
Journal of Hydroelectric Engineering
基金
教育部留学回国人员科研启动基金
