消力塘内掺气特性试验分析  

EXPERIMENTAL ANALYSIS ON THE CHARACTERISTICS OF GAS IN THE WATER CUSHION POND

作　　者：郭燕鹤 

机构地区：[1]昆明理工大学电力工程学院,昆明650500

出　　处：《内蒙古农业大学学报（自然科学版）》2016年第5期102-108,共7页Journal of Inner Mongolia Agricultural University(Natural Science Edition)

摘　　要：采用水力学模型试验的方法,通过改变不同水力条件来量测消力塘不同水流结构区掺气浓度值,对试验数据进行对比分析得到不同水流结构区掺气浓度分布规律。试验结果表明:改变不同水力条件中的任一条件,淹没射流区掺气浓度均沿程减小。随着入塘能量的增加,淹没射流区、冲击区、附壁射流区掺气浓度随之增大。随着水垫深度的增加,淹没射流区、冲击区、附壁射流区掺气浓度随之减小。随着泄槽入射角度的增加,淹没射流区和冲击区掺气浓度减小,附壁射流区掺气浓度变化不大。Using hydraulic model test method, by changing the different hydraulic conditions, to observe the distribution of gas concentration in the water cushion pool, after the test, to make comparative analysis of test data. The experimental results show that the aeration concentration in the submerged jet area decreases along with the change of the different hydraulic conditions. With the crease of the energy of the water into the pond, the aeration concentration of the submerged jet zone, the impingement zone and the wall of the attached jet zone increases. With the increase of the depth of the water cushion, the concentration of the submerged jet zone, the impingement zone and the wall of the attached jet zone decreases. With the increase of incident angle, the gas concentration in the submerged jet area and the impact zone decreased, and the concentration of the gas in the wall jet zone changed little.

关 键 词：水力学 水力条件 消力塘 掺气浓度 

分 类 号：TV135.2[水利工程—水力学及河流动力学]