Dissertation > Excellent graduate degree dissertation topics show

Numerical Simulation of Hydrodynamic Flows in the Qingcaosha Reservoir

Author: LiaoZhenHua
Tutor: WuWei
School: Shanghai Jiaotong University
Course: Port, Coastal and Offshore Engineering
Keywords: Qingcaosha reservoir numerical simulation lateral wall condition wind driven current water exchange
CLC: TV135
Type: Master's thesis
Year: 2011
Downloads: 109
Quote: 0
Read: Download Dissertation

Abstract


The project of the Qingcaosha reservoir is one of the significant infrastructure construction projects that have been included in“The Guideline of Shanghai the 11th Five-Year Plan of Economy and Society Development”. It greatly contributes to“one-hundred-year strategy”of the development of Shanghai water source system, in which the quantity, the quality and the safety of Shanghai raw water supply are of concern. After completion of the reservoir project,the flows are induced by wind and water discharge under the effect of lateral boundaries and the associated solute transport appears. It is an important issue to study on the flow pattern and water quality in the reservoir.The numerical model of hydrodynamic flows in the reservoir and in the Yangtze estuary is established with the commercial code Delft-3D. An analytic solution of the wind driven current was sued to validate the numerical model for computation of the wind driven current. The measured data, in terms of the tidal elevation and velocity, was used to validate the three dimensional numerical model of tidal flows in the Yangtze estuary.Considering a simple case of flows in a rectangular basin, the numerical model was implemented for three different formulations of the lateral walls, i.e., the free-slip wall condition, the no-slip wall condition and the partial-slip wall condition. Comparing with the flow patterns obtained by a model test, it turns out that the no-slip wall condition works well for numerical simulation of the small-scale flow in a laboratory model. However, the numerical simulation of the flow with the free-slip wall condition could show the same flow pattern as the experiment.The numerical model is used to study the hydrodynamic flows in the Qingcaosha reservoir of the full scale. The computed results show that there is little effect of the different lateral wall conditions on the overall hydrodynamic flow patterns, except some kind difference of local flows near the lateral walls.Through numerical simulation of hydrodynamic flows, the wind driven current was studied for the cases of two typical wind conditions. The patterns for fluid flows induced by wind and water discharge of the reservoir were obtained, which show several characteristics of the flows. The material transport in the water was investigated numerically and the water exchange rate in the revervoir was proposed and discussed.

Related Dissertations

  1. The Setting Bases of Working Pressure in LNG Systems and Orthogonal Experiment Design of Heat Exchangers,TQ051.5
  2. Study on Springback of High-Strength Steel Stamping,TG386
  3. Numerical Simulation and Experiment on Hydroforming of Cups with Controllable Radial Pressure,TG386
  4. Research on Technology and Mechanism of Joining Cemented Carbide to Carbon Steel,TG454
  5. Numerical Simulation of Film Cooling in Turbine Cascade with Non-Axisymmetric Endwall Method,V231.3
  6. High Speed Aerodynamic Convection and Coupled Heat Transfer of Complicated Bodies,V215.4
  7. The Analysis on Characteris of Vibration Source about Vertical Vibration of Surrounding Environment Induced by Rail Transit,U211.3
  8. The Design and Performance Simulation of External Valve Small Displacement Pump,TE933.3
  9. Analysis of the Impact of Tailings Dam Stability under Seepage Role,TV649
  10. Application of Feflow to Groundwater Flow Simulation,P641.8
  11. Basic Study on Jet Characteristics of Supersonic Coherent Jet Oxygen Lance,TF341
  12. Numerical Simulation Research on Optimal Milli-second Delay Time with Many Free Surfaces Hole by Hole Blast,TD235
  13. The System Design and Computational Fluid Dynamics Simulation for Chemical Looping Combustion,O35
  14. Research and Development of Fast Analysis Software of Sheet Metal Forming Based on SolidWorks,TG385
  15. Ship Numerical simulation of bubble wake,U674.701
  16. 1500 m water depth tension leg platform motion and mooring Numerical and Experimental Study,U661.7
  17. Typical coal and mixed coal on NOx emissions and boiler slagging Numerical Simulation,TK227.1
  18. MW-class wind turbine hub ductile iron QT350-22LT high- cycle fatigue properties of,TG255
  19. New Marine gas turbine exhaust ejector research,U674.703.5
  20. Water-rich sand and gravel formations Shield Excavation Numerical Simulation of surface subsidence caused by,U455.43
  21. Yanan City loess landslide stability,P642.22

CLC: > Industrial Technology > Hydraulic Engineering > The basic science of water resources project > Hydraulics > Engineering hydraulics ( hydraulic construction hydraulics )
© 2012 www.DissertationTopic.Net  Mobile