Dissertation > Excellent graduate degree dissertation topics show

Study on Wind-environment Numerical Simulation about Yellow River Diagonal Cable Bridge in Yu-Entranceon

Author: ZhangYongSheng
Tutor: HuZhaoTong
School: Chang'an University
Course: Bridge and Tunnel Engineering
Keywords: Cable-stayed bridge Wind Environment Wind observations Numerical Wind Tunnel FLUENT Turbulence model
CLC: U442.59
Type: Master's thesis
Year: 2007
Downloads: 84
Quote: 3
Read: Download Dissertation


With the continuous improvement of the technical level of the modern bridge across the major rivers and even the Strait Bridge are emerging, these long-span bridges must overcome nature wind study wind on the role of the bridge, the bridge wind engineering. Among them, the bridge of wind environment is an important part of this discipline. Focused Shanxi Yumenkou the Yellow cable-stayed bridge, its surrounding terrain wind field numerical simulation of wind load design based on the calculated result of its structural design and construction, as well as wind-resistant design of the bridge in such terrain Provides reference information. The bridge wind environment research methods including: field observations (including meteorological stations), wind tunnel tests and numerical simulation (the numeric wind tunnel). The first two methods for the physical means test cycle is long, and spend a lot of manpower and material resources. Numerical wind tunnel \the test is insufficient. \In this paper, using a numerical simulation method of observation combined with on-site wind characteristics, bit wind environment Research Yumenkou Cable Stayed Bridge. Calculated the analysis software FLUENT6.2 comes with large commercial fluid grid generation software GAMBIT2.1 build the bridge located at the terrain and the cable-stayed bridge 3D geometric model debugging grid and determine the calculation of the watershed, the appropriate choice of boundary conditions and solution parameters and written the UDF procedures, selection of improved Realizableκ-ε turbulence model. In addition, in order to explore a more reasonable turbulence model with SSTκ-ω model analysis of the two conditions. Given wind flow chart, wind vector, wind speed and turbulence maps of the deck at the height of the main beam surface wind velocity vector and pressure contour diagram, and finally the numerical simulation of the bridge is located in the wind field characteristics and wind observations statistical results comparative analysis. The conclusions reasonable explanation the mountain plains wind profile of the combination at the bridge site sometimes does not meet the exponential distribution law, comparing the surface category Yumenkou bridge location belongs, gives the cable-stayed bridge the tower column with deck The wind velocity vector maps proved Realizableκ-ε turbulence model can reasonably simulate such wind environment, SSTκ-ω turbulence model is not suitable for the simulation of such wind environment. Self UDF program beyond the laboratory numerical wind tunnel \

Related Dissertations

  1. The Value Simulation of the Filtration Process by Fiber Filter Materials,TB34
  2. The Large Concrete Hydration Heat Temperature Effects Research of the Cable Stayed Bridge,U441.5
  3. Experiment and Numerical Simulation Study of Side Holds Distributor Fluidized Bed,TQ051
  4. Numerical Simulation Study on the Process of Electrospinning and Experimental Verification,TQ340.6
  5. Technology Research on the Cable Replacement of Prestressed Concrete Cable-stayed Bridge,U448.27
  6. Research of Morphing Fin Stabilizer and Its Application in Underwater Vehicles,U664.72
  7. The Flow Simulation of Earth Dam’s Gradual Failure Based on FLUENT,TV122.4
  8. A Comparative Study on Energy Consuming of Hybrid Ground-source Heat Pump Systems,TU831
  9. The Study of Ground Temperature in GSHP System in the Model of Heating,TU831
  10. Magnetic drug targeting drug delivery capture efficiency modeling and influencing factors,R94
  11. Solar Pressurized Cavity Thermal Receiver Numerical Simulation Research,TK513
  12. PEMFC bipolar plate stainless steel surface microstructure research,TM911.4
  13. SST -based soft abrasive and impact stream flow and experimental study of mechanical properties,TG664
  14. Low resistance values ??Design hollow shells,TJ410.2
  15. Supermarket indoor environmental parameters and energy consumption calculation analysis,TU111.195
  16. Six red River cable-stayed bridge overall performance and girders, towers local performance,U448.27
  17. North Jiangqiao Cheng bridge and construction process force performance analysis,U448.27
  18. Yangpu Bridge Stress Analysis,U441
  19. Study on Reasonable State and Performance of Cable-stayed Bridge,U448.27
  20. Research on the Whole Structrue and Detail Structrue of Cable-Stayed Bridge,U448.27
  21. Analyzing Heat Efficiency of Drying Drum Used in Asphalt Mixing Plant and Construction Optimum Design,U415.5

CLC: > Transportation > Road transport > Bridges and Culverts > Investigation, design and calculation > Bridge Design > Of nature external force on the bridge design
© 2012 www.DissertationTopic.Net  Mobile