水利水电科技进展2011，Vol.31Issue(2)：28-33,6.DOI:10.3880/j.issn.1006-7647.2011.02.007
带掺气槽岸边溢洪道挑流消能工水力特性
Numerical simulation on hydraulics of lateral spillways with aeration slots and hybrid type flip buckets
摘要
Abstract
The RNG k-ε two-equation turbulent model was employed to study the flow fields of a lateral spillway under combined operation of aeration slots; hybrid type flip buckets and stilling pools.The jets with highly irregular hydropneumatic interfaces and the flows of aeration slots were simulated.The flow patterns in the slot, the largest impact pressure on the slot bottom and the distribution of pressure on the bucket were analyzed.The characteristics of the structure and velocity distribution of the jets and the flows were given.The calculated values were compared with the experimental ones, and they agreed with each other.The results indicate that four aeration slots in the spillway can efficiently avoid the cavitation erosion though they have some influence on their water surfaces.The dissipation effect of the hybrid type flip buckets with the stilling pool is satisfactory.关键词
岸边溢洪道/掺气槽/差动式挑流鼻坎/紊流模型Key words
lateral spillway/ aeration slot/ hybrid type flip bucket/ turbulent model分类
建筑与水利引用本文复制引用
张挺,许唯临,伍超..带掺气槽岸边溢洪道挑流消能工水力特性[J].水利水电科技进展,2011,31(2):28-33,6.基金项目
国家重点基础研究发展计划(973计划)(2007CB714705) （973计划）
福建省自然科学基金(E0710013) （E0710013）
