###
DOI:
工程科学与技术:2011,43(1):64-69
←前一篇   |   后一篇→
本文二维码信息
码上扫一扫!
香溪河库湾水温分布特性及其对悬浮颗粒物垂向输运的影响
(1.河海大学;2.河海大学水电学院;3.中国科学院水生生物研究所)
Study on the characteristics of water temperature distribution and its impact on the vertical transport of suspended solids in Xiangxi Bay
(1.Hohai university;2.College of Water Conservancy and Hydropower, Hohai University;3.Institute of Hydrobiology, Chinese Academy of Science)
摘要
图/表
参考文献
相似文献
附件
本文已被:浏览 2405次   下载 9
投稿时间:2009-12-24    修订日期:2010-04-26
中文摘要: 针对三峡水库蓄水后香溪河库湾水温分布特性进行了数值研究,表明香溪河库湾属于季节性水温分层型水体,在分层期会伴有温跃层的出现,在此基础上讨论水温分层对水体中悬浮颗粒物垂向输运的影响。通过推求沉速与水温分布的相关关系,发现水流在紊动条件极其微弱的情况下,水温分层可同时引起悬浮颗粒物的沉降速率呈现梯度分布状态,因此易造成悬浮颗粒物在温变层的富集,最终将导致物质浓度在垂向上出现分层现象。
Abstract:Abstract: The characteristics of water temperature distribution in Xiangxi Bay were studied by numerical simulation method after the Three Gorges Reservoir had been put into operation, the result is that, the Xiangxi Bay is the water body of seasonal temperature stratification, and the thermocline can be observed in the period of stratification, Furthermore, the impact of the water temperature distribution on the vertical transport of suspended solids was discussed. Through derivating the relation of water temperature and settling velocity, it is shown that the settling velocity is significantly affected by temperature, and under the conditions of weak hydrodynamic, the water temperature stratification makes the settling velocity of suspended solids is gradient distribution, then the suspended solids are enriched at the epilimnion, finally the concentration of materials will be stratified in vertical.
文章编号:200901164     中图分类号:    文献标志码:
基金项目:国家自然科学基金
作者简介:
引用文本:
余真真,王玲玲,戴会超,蔡庆华.香溪河库湾水温分布特性及其对悬浮颗粒物垂向输运的影响[J].工程科学与技术,2011,43(1):64-69.
Yu Zhen-Zhen,Wang Ling-Ling,Dai Hui-chao,Cai Qing-hua.Study on the characteristics of water temperature distribution and its impact on the vertical transport of suspended solids in Xiangxi Bay[J].Advanced Engineering Sciences,2011,43(1):64-69.