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Journal of Hydrodynamics 1997年第4期9卷 53-54页

作者： dai hui-chaochina yangtze three gorges project development corporation,yichang 443.02.p. r.china

The turbulence flow Free Surface has important applications in hydraulic spillways structure, such as the hydraulic jump, energy dissipation flow etc. This is being considered as very complicated flow, and has not yet been solved quite well by numerical method. In this paper, a Large-scale computational software package are developed for numerical laboratory of hydraulic spillway structure. Some methods,such as turbulence model, free surface and irregular boundary treating techniques,scientific computer visualization are put forward and performed.

关键词： turbulence model,free surface irregular boundary spillways structure

Financing & Capital-running of a Large Hydropower project——10 years' financing strategy & practices in the three gorges project

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工程科学（英文版） 2003年第1期1卷 72-79页

作者： Li Yongan (china yangtze three gorges project development corporation, yichang, Hubei\ 443.02)

By summing up ten years’ decision making and practices in the three gorges project(TGp)financing, this paper makes a thorough going analysis of the characteristics of financing and capital running in this large hydropower project. Meanwhile,the proposals are also presented in this paper for how to optimize the financing structure, lower the financing cost and set up a carrier for durative financing and capital running of this large hydropower project.

关键词： financing capital running hydropower project

An Analysis of the Designed performance and Structural Characteristics of the Turbine Generating Units of TGp

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工程科学（英文版） 2003年第1期1卷 47-52页

作者： Huang Yuanfang (china yangtze three gorges project development corporation, yichang, Hubei\ 443.02)

The main technical requirement of the turbine generating units for the three gorges project (TGp) has a basic conclusion through a long term study and research as well as *** with the TGp construction and successful execution of the contract of turbine generating units,the technical difficulties concerning the performance and structure of turbine generating units have been further *** this paper some issues are discussed and analyzed in connection with a deep going cognition of turbine generating units for TGp during the period of design, manufacture and installation.

关键词： three gorges project turbine generating units technical problems discussion and analysis

Key Technical Issues of TGp permanent Shiplock

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工程科学（英文版） 2003年第1期1卷 57-61,71页

作者： Fan Qixiang (china yangtze three gorges project development corporation, yichang, Hubei\ 443.02)

To solve the high dam navigation issue of a world class project is one of the key technical issues that bring many difficulties upon the three gorges project (TGp). Special requirements exist in the TGp double lane five step shiplock in terms of a general layout of navigation structures, a sedimentation hindrance to navigation, hydraulics of the water conveyance system, treatment of high and steep slopes, the manufacture and technology of both main metal structures and mechanical and electric equipment, all of which have been resolved step by step by means of scientific tests, verification and engineering practice.

关键词： navigation structures water conveyance system high and steep slope hydraulics

Incipient Motion of Bed Load Sediment and Its Application in the three gorges Hydro project

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四川大学学报（工程科学版） 2005年第S1期37卷 102-105页

作者： HE Wenshe~(1,3) CAO Shuyou~2 YUAN Jie~3 dai huichao~3 (1.Lanzhou Jiao Tong Univ.,Lanzhou 730070,china 2.State Key Lab.of Hydraulics and Mountain river Eng.,Sichuan Univ.,Chengdu 610065,china 3.china yangtze three gorges project development corporation,Hubei yichang 443.02,china) Lanzhou Jiaotong Univ. Lanzhou 730070 China china yangtze three gorges project development corporation Yichang 443002 China State Key Lab. of Hydraulics and Mountain river Eng. Sichuan Univ. Chengdu 610065 China

A formula for the calculation of critical shear stress of non-uniform sediment was developed by on river bed has been established while considering the relative degree expose of *** values of the Coeffi- cients in the formula have been *** formula has been verified with prototype observation data, flumes data of both nature and lightweight *** computed results fully reflect the characteristics of thresh- old motion of non-uniform *** result have been used in some physical mo...

关键词： non-uniform sediment incipient motion bed load three gorges Hydro project

Numerical simulation of two-phase turbulent flow in hydraulic and hydropower engineering

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Science china(Technological Sciences) 2007年第Z1期50卷 79-89页

作者： dai huiChao1,2?, WANG LingLing1, GAO JiZhang3, ZHANG XiaoDong3 & YANG ZhongHua2 1 College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, china 2 china yangtze river three gorges project development corporation, yichang 443.02, china 3 china Institute of Water resources and Hydropower research, Beijing 100044, china College of Water Conservancy and Hydropower Engineering Hohai University Nanjing China china yangtze river three gorges project development corporation Yichang China china Institute of Water resources and Hydropower research Beijing China

In connection with the specific features of high velocity aerated flow generated by hydraulic engineering structures, the mathematical model is developed for high turbulence air-water two-phase flow with the use of twin flow theoretical model in this paper. Furthermore the numerical method is proposed to treat bubbled flows. In addition, on the basis of air-water stratified twin flow model, the new calculation methods and free surface tracking technique are proposed to describe complicated movements of the free surface. Finally, the proposed model is used to calculate artificial aerated flows. The computed results coincide quite well with experimental results. This means that the proposed method can provide solid basis for practical engineering design.

关键词： high turbulence two-phase flow twin flow model aerated flow free surface

Selection and Verification of the Structural pattern of the penstock and Spiral Case of the TGp power Station

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工程科学（英文版） 2003年第1期1卷 66-71页

作者： dai huichao, peng peng (china three gorges project development corporation,yichang, Hubei 443.02)

As a key backbone project in developing and harnessing the yangtze, the three gorges project (TGp) is a largest water conservancy and hydropower project in china and all the world as well. With a huge comprehensive benefit from flood control, power generation and navigation improvement, TGp, when completed, will exert a significant influence on the socio economic development across the yangtze Basin and all china. Decisions on key technical issues concerning the construction of TGp were made on a huge number of scientific tests and verifications. The structural pattern selection of the penstock and the spiral case in the TGp power station is not only an important technical and economic issue, but also relating to the long term operation of the power station itself.

关键词： TGp penstock spiral case

Decision-making & practice on the three gorges project(TGp)

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工程科学（英文版） 2003年第1期1卷 1-7,79页

作者： Lu Youmei (china three gorges project development corporation, yichang, Hubei 443.02)

china yangtze TGp is a particularly giant hydro development project in the world, with an enormous scale and complex technology. Seventy years project planning, verification and decision making and ten years construction work demonstrate that not only great progress has been made within the projects implementation stage, but most of the conclusions from the verifications and decisions are correct as well. Some problems like sedimentation, environment and resettlement are still waiting to be proven in the actual operation of the project. This paper provides a brief introduction to the decision making and practice on TGp.

关键词： yangtze river three gorges project decision making practice

Numerical Simulation of a Complete Turbine

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Numerical Simulation of a Complete Turbine

Test Studies on performances of TGp Total Gradation Concrete

第七届全国水动力学学术会议暨第十九届全国水动力学研讨会

作者： Jiang Ding-guo dai hui-chao (College of civil and hydraulic engineering, china three gorges University, yichang 443.02, china yangtze three gorges project development corporation, yichang 443.02)

＜正＞The design process of hydraulic turbines is analyzed in this paper. The study shows that a numerical flow simulation on only one component of hydraulic turbine doesn’t satisfy the design and the flow analysis of it. In the paper, the method to get 3-D turbulence flow through the whole passage of turbine with boundary conditions transfer between components was described. To verify the method is effective, a numerical simulation of TGp turbine was described. Modeling is accomplished by solving the N-S function. Based on the standard k-ε turbulence model, the control equation is discretized by finite volume method and SMpLEC method is applied to solve the equations. The result shows that the method can be used to improve and optimize the design of turbine and the study of its hydraulic performance effectively.

关键词： TGp hydraulic turbine hydraulic performance numerical simulation interface

来源： cnki会议评论

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Engineering Sciences 2005年第4期 32-38页

作者： dai huichao~(1,2)(1. Hohai University, Nanjing 210098 2. china yangtze three gorges project development corporation, yichang, 443.02)

The three gorges project （TGp） is the largest water conservancy and hydropower complex in the world, with a concrete consumption of 28 million m3in total. For such a significant world-attracting project, first rate quality concrete is needed. Various mechanical and deformation performances of hydraulic mass concrete are determined conventionally by the wet screening method to make small specimens and the test results of the small standard specimens are taken to represent the properties of the mass concrete. However, the quantity of the coarse aggregate after wet screening would be reduced by 30% or so and the gel materials would increase by 20% or so, thus causing significant differences between the properties of the small concrete specimen and that of the total gradation concrete. To well understand the performances of the total gradation concrete of TGp dam, test studies have been performed on the total gradation concrete, including compressive strength, split tensile strength, elastic modulus, ultimate tension, dry shrinkage, self volume deformation, creep, seepage prevention, and so on, and comparison made with the small standard specimens to find out the relationship between them, which have provided scientific ground for the design, operation and safety verification of the TGp dam.

关键词： three gorges project hydraulic mass concrete total gradation concrete performance tests