闸控河段水质转化机制研究Ⅰ:模型研制

发布时间：2018-04-17 14:59

本文选题：闸控河段 + 多相转化　；参考：《水利学报》2016年04期

【摘要】：从闸控河段水环境系统的复杂作用机理出发,提出在"水体-悬浮物-底泥-生物体"界面内开展水质多相转化研究的总体思路。综合运用环境水力学、吸附-解吸动力学、水生生物生长动力学等理论,推导了描述各种相态水质成分之间传质过程的数学表达式。以MIKE 11模型为基础,建立了具有一定物理机制的闸控河段水质多相转化模型。结合2013年4月和2014年11月两次槐店闸调度影响实验数据,对水动力学模型和水质多相转化模型进行了参数识别和验证,并对实验期间溶解相和悬浮相物质的转化规律进行了分析。结果发现:水流流速和闸门调度方式对闸上和闸下断面各相水质浓度变化均有显著的影响,且闸门调度方式变化越频繁,水质多相转化越复杂。
[Abstract]:Based on the complex mechanism of water environment system in sluice control reach, the general idea of multi-phase water quality transformation in the interface of "water body, suspended solids, sediment and organism" is put forward.Based on the theories of environmental hydraulics, adsorption-desorption kinetics and aquatic biological growth dynamics, the mathematical expressions describing the mass transfer process between various phase water components are derived.Based on MIKE 11 model, a water quality multiphase transformation model for sluice control reaches is established.The hydrodynamic model and the water quality multiphase transformation model were identified and verified by combining the experimental data of Huaidian sluice scheduling in April 2013 and November 2014.The transformation law of dissolved phase and suspended phase during the experiment was analyzed.The results show that the water flow velocity and gate operation mode have significant influence on the water quality concentration change in each phase of the upper and lower sections of the gate, and the more frequently the gate dispatching mode changes, the more complex the multiphase water quality conversion is.
【作者单位】：郑州大学水利与环境学院;郑州大学产业技术研究院有限公司;中国科学院地理科学与资源研究所;
【基金】：国家自然科学基金项目(U1304509) 河南省高校科技创新团队支持计划(13IRTSTHN030)
【分类号】：X52

【相似文献】