摘要
从对总溶解气体(TDG)过饱和概念的分析入手,阐述TDG过饱和的危害。通过对不同典型水体TDG饱和度的测量,表明泄流可以导致水体TDG含量增加甚至过饱和。在此基础上,采用试验研究的方法,探讨了TDG过饱和产生原因及其释放过程,表明水利工程泄流引起的TDG过饱和与泄流掺气、压力、紊动强度、水温等要素相关,并由此提出减缓水利工程TDG过饱和影响的建议。
Based on the analysis of its concept,the hazards of the supersaturation of the total dissolved gas（TDG） were discussed.Through the measurements of saturation degrees of TDG by different models for typical water bodies,hydraulic sluicing may lead to the increase of TDG concentration and even to its supersaturation.On such a basis,the method of experimental study was employed to study the causes of the supersaturation of TDG and its release process.It indicated that the supersaturation of hydraulic projects due to hydraulic sluicing closely related to aeration,pressure,turbulence intensity,water temperature and so on.Some suggestions were proposed for reducing the supersaturation of TDG for hydraulic projects.
出处
《水利水电科技进展》
CSCD
北大核心
2010年第5期12-15,共4页
Advances in Science and Technology of Water Resources
关键词
总溶解气体
过饱和气体
水利工程
泄流
温度
紊动强度
total dissolved gas
supersaturated gas
hydraulic project
discharge
temperature
turbulence intensity
