水动力学条件对复氧过程的影响研究  

Study on effect of hydrodynamic characteristics on reaeration progress

作　　者：李然[1] 李嘉[1] 李克锋[1] 傅晓英[1] 

机构地区：[1]四川大学高速水力学国家重点实验室,四川成都610065

出　　处：《水科学进展》2002年第5期542-546,共5页Advances in Water Science

基　　金：教育部高等学校骨干教师资助计划~~

摘　　要：通过水槽实验对紊动水体复氧规律进行了研究。将氧通量理论应用于紊动水体复氧过程的研究 ,得到了紊动水体表面传质系数。数值模拟研究了实验流场分布和紊动特性 ,得出了紊动水体表面传质系数与流速和紊动动能的关系式。不同工况的实验资料验证表明了紊动复氧理论的合理性和可靠性。The reaeration progress for turbulent water is studied by the flume reaeration experiment and the interfacial mass transfer coefficients are obtained by employing the oxygen-flux theory. The expression of the interfacial mass transfer coefficient related with velocity and kinetic energy is developed by using the numerical model to simulate the turbulence characteristics of the flow field. The examination with the experimental data of different cases shows the validation of the theory.

关 键 词：水动力学 复氧 紊动水体 数值模拟 水槽 

分 类 号：TV131.2[水利工程—水力学及河流动力学]