水下滑坡运动诱导形成的内波特性及破坏分层特征
Characteristics of Internal Wave Induced by Underwater Landslide Movement and Characteristic of the Destroyed Stratification
刘宗翰 1姚烨 2练继建 3陈亮 1颜东谊1
作者信息
- 1. 天津大学 水利工程仿真与安全国家重点实验室,天津 300350;天津大学 建筑工程学院,天津 300350
- 2. 天津大学 水利工程仿真与安全国家重点实验室,天津 300350;天津理工大学 海洋能源与智能建设研究院,天津 300384
- 3. 天津大学 水利工程仿真与安全国家重点实验室,天津 300350;天津大学 建筑工程学院,天津 300350;天津理工大学 海洋能源与智能建设研究院,天津 300384
- 折叠
摘要
为改善湖库因季节性水温分层而导致的水质恶化现象,通过水下滑坡体扰动的方式人工诱导产生内波,探究了水下滑坡运动诱导形成的内波特性及其对水体温度分层结构的破坏特征,结果表明:水下滑坡破坏水体温度分层结构主要通过扰动引起上下层水体交换实现,在此过程中内波作用效果持久且较为平缓;滑坡倾角和滑坡体运动速度对分层水体破坏效果有重要影响;滑坡倾角为 45°工况相较 60°工况诱导的内波规模更大.
Abstract
In order to improve the deterioration of water quality caused by seasonal water temperature stratification in reservoirs and lakes,this paper was focused on exploring the characteristics of the internal wave induced by the underwater landslide movement and the damage characteristics of water stratification structure by artificially induced internal waves through the disturbance of underwater landslide.The re-sults show that a)the stratification of the water destroyed by the underwater landslide is mainly caused by the disturbance of the upper and lower layers,and the effect of the internal wave is lasting and slow;b)The slope of the landslide and the motion speed of landslide have an important impact on the damaging effects of stratified water;c)The scale of internal waves generated by a landslide at an angle of 45 degrees is greater than that generated by a landslide at an angle of 60 degrees.
关键词
水体温度分层/分层水环境/水下滑坡/内波特性/分层破坏特征Key words
water temperature stratification/layered water environment/underwater landslide/internal wave characteristics/layered damage characteristics引用本文复制引用
基金项目
国家自然科学基金重点项目(U20A20316)
出版年
2024
国家科技期刊平台
NSTL
万方数据