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A COUPLED MODEL OF HYDRODYNAMICS AND water QUALITY FOR YUQIAO RESERVOIR IN HAIHE RIVER BASIN

Journal of Hydrodynamics 2008年第5期20卷 574-582页

作者： LIU Xiao-bo PENG Wen-qi HE Guo-jian LIU Jing-ling WANG Yu-chun School of environment Beijing Normal University Beijing 100875 China department of water environment China Institute of Water Resources and Hydropower Research Beijing100038 China department of Hydraulic Engineering State Key Laboratory of Hydroscience and Engineering TsinghuaUniversity Beijing 100084 China

In order to simulate the characteristics of hydrodynamic field and mass transport processes in the Yuqiao Reservoir （YQR）, a 2-D coupled model of hydrodynamics and water quality was developed, and the water-quality related state variables in this model included CODMn, TN and TP. The hydrodynamic model was driven by employing observed winds and daily measured flow data to simulate the seasonal water cycle of the reservoir. The simulation of the mass transport and transformation processes of CODMn, TN and TP was based on the unsteady diffusion equations, driven by observed meteorological forcing and external loadings, with the fluxes form the bottom of reservoir and the plant photosynthesis and respiration as internal sources and sinks. A finite volume method and Alternating Direction Implicit （ADI） scheme were used to solve these equations. The model was calibrated and verified by using the data observed from YQR in two different years. The results showed that in YQR, the wind-driven current was an important style of lake current, while the concentration of water quality item was decreasing from east to west because of the external pollutant loadings. There was a good agreement between the simulated and measured values, with the minimal calculation error percent of 0.1% and 2.6% and the mean error percent of 44.0% and 51.2% for TN and TP separately. The simulation also showed that, in YQR, the convection was the main process in estuaries of inflow river, and diffusion and biochemical processes dominate in center of reservoir. So it was necessary to build a pre-pond to reduce the external loadings into the reservoir.

关键词： model simulation Yuqiao Reservoir (YQR) wind driven current water quality

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Designing regional pattern for ecosystem restoration:A case study

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Science china(Technological Sciences) 2006年第z1期49卷 86-97页

作者： LI Guoqiang , MA Keming, FU Bojie & LIU Shiling State Key Lab of Systems Ecology, research Center for Eco-environmental Sciences, Chinese Academy of Sciences, beijing 100085, china department of water environment, china institute of water resources and hydropower research, beijing 100038, china School of environmental Sciences, beijing Normal University, beijing 100875, china 1. State Key Lab of Systems Ecology Research Center for Eco-environmental Sciences Chinese Academy of Sciences Beijing 100085 China 2. department of water environment China Institute of Water Resources and Hydropower Research Beijing 100038 China 3. School of environmental Sciences Beijing Normal University Beijing 100875 China

Designing regional pattern is challenging for ecosystem restoration both in theory and in practice. The present study proposed a new approach to design regional pattern for ecosystem restoration with a case in the arid valley of Upper Minjiang River, SW china. The procedures are: (1) Determine the regional pattern of main environmental factors based on the relationships between the important environmental factors and the main geographical factors generated from DEM data. (2) Overlay the maps of the main environmental factors. (3) Generate a lookup table according to the species selection rule we proposed to link the candidate restoration species to the main environmental factors.(4) Determine the regional pattern of ecosystem restoration by positioning the restoration species in the map of environmental factors according to the lookup table. The regional restoration pattern designed in this way would be applicable not only to restoring a region, but also to predicting the future landscape change.

关键词： environmental factors, GIS, restoration species, Upper Minjiang River Valley.

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NUMERICAL SIMULATION OF HORIZONTAL BUOYANT WALL JET

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Journal of Hydrodynamics 2010年第1期22卷 58-65页

作者： HUAI Wen-xin LI Zhi-wei QIAN Zhong-dong ZENG Yu-hong HAN Jie PENG Wen-qi State Key Laboratory of water resources and hydropower Engineering Science Wuhan University Wuhan 430072 China department of water environment China Institute of Water Resources and Hydropower Research Beijing100038 China

This article applies the realizable k - ω model to simulate the buoyant wall jet and gives the results of cling length, centerline trajectory and temperature dilutions at certain sections. The comparison between the numerical results and Sharp＇s experimental data indicates that the model is effective in estimating velocity distribution and temperature dilutions. The velocity profiles at the cental plane and z-plane both show a strong similarity at certain distance from the nozzle, and the distributions of velocity and temperature dilutions also exhibit a similarity along the axial direction at centerline in the near-field. Based on the results, the article gives the corresponding relationships between the distance and the dilutions of velocity and temperature, which is useful in predicting the behavior of the wall buoyant jet.

关键词： buoyancy wall jet cling length velocity profile temperature dilution

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GC-MS法测定水源水中的半挥发性有机物

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分析测试学报 2004年第Z1期23卷 183-186页

作者：刘晓茹高继军刘玲花袁浩中国水利水电科学研究院水环境所北京100038

　　我国于2002年6月1日实施了地表水环境质量标准(GB3838-2002),其中集中式生活饮用水地表水源地特定项目中规定了68种有机污染物的监测,包括挥发性有机物(VOCs)和半挥发性有机物(SVOCs),其中半挥发性有机物的类别较多,有硝基苯、氯苯... 详细信息

　　我国于2002年6月1日实施了地表水环境质量标准(GB3838-2002),其中集中式生活饮用水地表水源地特定项目中规定了68种有机污染物的监测,包括挥发性有机物(VOCs)和半挥发性有机物(SVOCs),其中半挥发性有机物的类别较多,有硝基苯、氯苯、苯胺、苯酚、有机氯农药、有机磷农药、多环芳烃和多氯联苯等有机污染物,分析方法以气相色谱为主.……

关键词： GC - MS Semivolatile organic compounds Source water

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基于MATLAB的神经网络在湖泊富营养化评价中的应用

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水资源保护 2005年第1期21卷 24-26页

作者：韩涛李怀恩彭文启西安理工大学水利水电学院陕西西安710048 中国水利水电科学研究院水环境研究所北京100038

以MATLAB为工具,建立评价湖泊水体富营养化状态的BP神经网络模型,应用此模型对我国9个湖泊富营养化程度进行评价。将此评价结果与用分级评分法、模糊数学法、Fuzzy Grey决策法的评价结果进行比较分析,得出较一致的结论。同时表明用MATLA... 详细信息

以MATLAB为工具,建立评价湖泊水体富营养化状态的BP神经网络模型,应用此模型对我国9个湖泊富营养化程度进行评价。将此评价结果与用分级评分法、模糊数学法、Fuzzy Grey决策法的评价结果进行比较分析,得出较一致的结论。同时表明用MATLAB构建神经网络简洁、高效,具有更好的通用性和实用性。

关键词：湖泊富营养化 BP神经网络 MATLAB

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生物工程技术在我国水资源保护中的应用

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水资源保护 2003年第5期19卷 9-11页

作者：刘玲花周怀东张燕中国水利水电科学研究院水环境研究所北京100038

根据生物工程技术的基本原理和技术类型,从3个方面介绍了生物工程技术在我国水资源保护中的具体应用,一是生物工程技术在污染源治理方面的应用,它是目前应用最广、最有效的水资源保护手段,包括传统的人工生物处理系统和天然生物处理系统... 详细信息

根据生物工程技术的基本原理和技术类型,从3个方面介绍了生物工程技术在我国水资源保护中的具体应用,一是生物工程技术在污染源治理方面的应用,它是目前应用最广、最有效的水资源保护手段,包括传统的人工生物处理系统和天然生物处理系统;二是生物工程技术在水资源污染监测中的应用;三是受污染水体的生物修复。结合我国不同区域污染源的特征,提出了不同生物工程技术的应用方式和前景。分析了生物工程技术推广运用中存在的问题,对急需开发的核心技术问题进行了探讨。

关键词：中国水资源保护生物工程生物处理污染监测生物修复

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固相萃取技术及其演化发展

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首都师范大学学报（自然科学版） 2004年第S1期25卷 116-119页

作者：孙天华刘晓茹首都师范大学资源环境与旅游学院北京100037 中国水利水电科学研究院水环境研究所北京100038

概述了固相萃取技术的应用原理、类别、操作过程及其应用进展 ,简要介绍了在其基础上演化发展起来的新型前处理技术———固相微萃取技术的发展 .

关键词：前处理技术固相萃取演化发展固相微萃取

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Study on real working performance and overload safety factor of high arch dam

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Science china(Technological Sciences) 2008年第S2期51卷 48-59页

作者： ZHANG GuoXin,LIU Yi & ZHOU QiuJing department of Structures and Materials,china institute of water resources and hydropower research,beijing 100038,china 1. department of Structures and Materials China Institute of Water Resources and Hydropower Research Beijing 100038 China

Considering the fact that high arch dams have problems such as complicated stress,high cost,and hazards after being damaged,this paper intends to study the effects of load,material strength,and safety analysis method on dam safety and working performance of arch *** this article,the effects of temperature,self weight exaction way and water loading on structure response are first discussed,and a more reasonable way of considering is then put *** taking into consideration the mechanical property of materials and comparing the effects of different yield criteria on overloading safety of high arch dams,this paper concludes that brittle characteristics of concrete should be fully considered when conducting safety assessment for high arch dams to avoid overestimating the bearing capacity of the *** comparing several typical projects,this paper works out a safety assessment system of multiple safety and relevant engineering analogical analysis methods,which is closer to the actual situation,and thus is able to assess the response of high arch dam structure in a more comprehensive way,elicit the safety coefficients in different situations,and provide a new way of considering the safety assessment of high arch dams.

关键词： high arch dam real working performance safety load strength safety assessment method

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Simulation of influence of multi-defects on long-term working performance of high arch dam

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Science china(Technological Sciences) 2011年第S1期54卷 1-8页

作者： ZHANG GuoXin ,LIU Yi,ZHENG CuiYing & FENG Fan State Key Laboratory of Simulation and Regulation of water Cycle in River Basin,beijing 100038,china china institute of water resources and hydropower research,beijing 100038,china 1. State Key Laboratory of Simulation and Regulation of water Cycle in River Basin Beijing 100038 China

As an integrated structure,an arch dam is assumed to bear loads in its design ***,multi-defects,such as cracks and the opening of transverse joints,are unavoidable during construction and ***-defects will reduce the structural integrity and stiffness of the dam and affect its working performance and degree of *** the current paper,a numerical model of defects and a simulation method of a high arch dam are *** Chencun arch dam is analyzed as a case *** entire course simulation analysis of the Chencun arch dam from construction to operation is carried out,through which the opening of the transverse and longitudinal joints,formation of cracks,and their influence on deformation and stress of the dam are *** to the results of the analysis,appropriate measures should be adopted to prevent the development of cracks,and observation should be strengthened for a more timely discovery of risks.

关键词： high arch dam crack multi-defects working performance

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A STUDY ON THE WARPING NEAR IRRIGATION HEADWORKOF THE LOWER REACH OF YELLOW RIVER

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International Journal of Sediment research 1999年第2期14卷 399-404页

作者： HUANG Jinchi WANG Yangui (china institute of water resources and hydropower research, Fuxinglu, A-l, beijing,100038, china)

The Yellow River is famous for its tremendous amount of sediment transport. Through a careful settlement, large amount of sediment laden flow can be diverted out for warping. however. for successfully completing a warping process, a series of technical measures must be taken and a precisely pre-planning is necessary. In this paper, a general description on the warping for soil improvement has been provided; some technical problems for a successful warping process were put forward and finally. a practical designing example on silt filling at headwork of an irrigation project is examined. The case study shows that drawing of flood water at hyper-concentration of sediment for warping is an effective measure to fully utilize water and sediment resources in the Lower Yellow River.

关键词： Warping Sediment transport Lower Yellow River

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