万安水电站汛期运行研究

万安水电站位于赣江中游，肩负有上下游防洪任务，下游防洪控制点为吉安、石上两站．电站正常运行后，正常蓄水位和防洪高水位均为100．00m，防洪限制水位和死水位均为90．00m．受移民条件限制，初期运行上述特征水位均降低，主汛期4～6月库水位控制在85．00m，发电水头比正常运行降低5m，机组出力受阻达40％以上，致使电站效益不能充分发挥，而4～6月恰为用电高峰期，电网缺电十分严重．为解决主汛期发电和防洪的矛盾，提出了汛期采用预泄办法提高运行水位的方法，即在水文气象预报的有效预见期（18～24h）内，按8800m3／s控制下泄，使库水位从8800m或90．00m泄至85．00m，可满足万安水电站防洪的两个约束条件，即回水对赣州市的影响既不超过0．3m，也不会加重下游的防洪负担．经过1993年6月的实际运行，证明此方法是可行和有效的，提高万安水电站的运行水位，既增加了经济效益，又提高了运行水头，改善了机组工况．     

1981年8～9月黄河上游强连阴雨期水汽输送分析

对黄河上游兰州以上区域１９８１年８￣９月强连阴雨期主要降水时段水汽输送的计算和分析表明，这次降雨的水汽来自孟加拉湾，由５００ｈＰａ低槽前的西南气流输送水汽；降雨区内水汽的经向辐合是水汽辐合的主要过程，纬向辐散是水汽输出的主要机制，降雨中高原地形和垂直运动也明显影响了水汽输送和降雨；该区域水汽净输送量约占实测降雨量的９２％。     

高压水射流除垢机理研究

本文根据流体力学的基本方程－积分形式的能量方程、连续性方程和动量方程，推导出高压水射流作用在管壁污垢上的应力计算公式，从理论上分析了高压水射流除垢机理，提出了根据不同管垢的耐压强度极限应力设计喷嘴结构及射流压力选择的理论方法，对现场应用具有重要指导意义，本文所述理论方法及计算公式未见有公开文献报道。     

三层流体模型的非线性波演化方程

本文在浅水波假定下，采用垂直向平均方法导出了三层流体模型的推广的Ｂｏｕｓｓｉｎｅｓｑ方程；同时也给出了三层流体模型基于Ａｉｒｙ理论的很长的长波方程，线性化波动方程以及单向传播波的ＫｄＶ方程，这些方程在退化精形可化为二层，单层流体模型的相应方程。     

二维水波数学模型的实验验证

为了验证基于缓坡方程的波浪折射和绕射综合问题的数学模型，在波浪水池中，对缓坡地形上的双突堤在规则波，单向不规则波和多向不规则波作用下的折射，绕射综合影响进行了实验研究，并将实验得到的结果和数值计算结果进行了比较。     

Application of the LP-DP approach to Andong and Imha parallel reservoirs,Korea

This paper presents an application of a previously developed linear programming-dynamic programming (LP-DP) methodology to the operation of Andong and Imha parallel reservoirs in South Korea. The model allows for multioptimization of power generation and municipal, industrial, and irrigation water use. It is shown that the annual average energy and the annual average water supply generated from the joint operation of the two parallel reservoirs by the LD-DP approach is 15.2 and 1.7% more than the contracted power production and water supply respectively.     

Application of remote sensing in studies of water quality in the Amazon Region

This paper deals with some basic matters concerning the use of remote sensing techniques related to limnological/water quality surveys in the Amazon Region. The main conclusions are: (i) it is important to use these techniques for detecting problems before the construction of new projects involving water resources in the Amazon Region; and (ii) remote sensing focused on water quality should be seriously considered in planning Brazil's space program as a means of providing data for more effective water basin management.     

Optimal allocation of water resources in large river basins: I. Theory

The major purpose of this paper is to present the useful techniques in the optimal allocation of water resources (OAWR) and to demonstrate using water resources applications how these methods can be conveniently employed in practice for systematically studying both simple and complex water resources problems. Formal modelling techniques in multiobjective decision-making provide many benefits to professionals working in water resources and elsewhere. A new Large-system Hierarchical Dynamic Programming (LHDP) method to solve the model can be carried out to ascertain the consequences of meaningful parameter changes upon the optimal or compromise solution.As a case study, the techniques and methods are applied to the OAWR of the Yellow River Basin (YRB) of China. The next paper shares with the reader recent research results on the OAWRYRB.Notation L _i inflows from the trunk stream in the subregioni. - S _i run-off volume of the river sectioni. - Q _i net inflows of intervals in the subregioni. - W _i volumes of water drawn the trunk stream ofi into subdistricti. - H _i volumes of water returning to the trunk stream in the subdistricti. - B _i(W _i) the maximum net benefits (in hundred million yuan) from the annual-water consumption ofW _iin subregioni. - W _ik the annual-water consumption (in hundred million m³) of sectorK in subregioni, k = 1, 2, 3, 4. - B _ik(W _ik the maximum net benefits (in hundred million yuan) from the annual consumptionW _ikof sectork in subregioni. - BS _i(S _i) the maximum net benefits (in hundred million yuan) obtained from the optimal allocation of the run-off volumeS _iof river trunki among different sectors within the months of a year.     

小型水电站机组合理选择与增容改造

通过对实例的分析，计算，阐述了不少农村小型水电站在进行水轮发电机组的选型设计工作中存在的问题，介绍了正确合理的选型设计方法，论述了小型立轴轴流式水轮机尾水管的选用，介绍了南丰县近年来对老电站进行分期分批更新改造，配套增容工作及所取得的显著效益。     

水面波动问题频域三阶解的一个实例(之二):三阶波形和水动力的求解

针对定深水域中一块直立推板简谐运动引起水面二维波动的问题,在论文[1]已给出速度势三阶解表达式的基础上,本文进一步求取波形和推板所受水动力的三阶解.通过与二阶解及完全非线性解的比较,分析了三阶解在非线性解中的地位和作用.