摘要
利用ECOM模型模拟人工试验池内三维水动力变化,并分析风力因素对水体交换过程的影响.在模型验证结果准确的基础上,发现静风条件下的水体置换率比当地冬季盛行风条件下的水体置换率更好,盛行风向与进出水流流向重合度高,大大降低了水体置换效果,对于水环境治理和保护是不利的.因此,在设计进出水流方向时需考虑当地盛行风向.
ECOM model is used to simulate three-dimensional hydrodynamic changes in artificial test pool.Influence of wind on water exchange process is also analyzed.Based on the verification of the model,it is found that water replacement rate under static wind condition is better than that under local winter strong wind condition.High coincidence degree of prevailing wind direction and flow direction will greatly reduce the effect of water displacement,which is disadvantageous to water environment control and protection.Therefore,local prevailing wind direction should be considered when designing the inlet and outlet direction in the river.
作者
张午
ZHANG Wu(Shanghai National Engineering Research Center of Urban Water Resource Co.,Ltd.,Shanghai 200082,China)
出处
《净水技术》
CAS
2020年第S01期27-32,78,共7页
Water Purification Technology
基金
上海水源水库水质关键问题研究与控制技术应用。
关键词
风力因素
水体置换率
三维水动力
对流扩散
wind factors
water replacement rate
three-dimensional hydrodynamic model
convection-diffusion
