Dissertation > Excellent graduate degree dissertation topics show

Numerical Simulation and Structure Optimization on Large-power High-Speed Mixed Flow Pump

Author: ChenLi
Tutor: WangLeQin；WuDaZhuan
School: Zhejiang University
Course: Chemical Process Equipment
Keywords: Mixed-flow pump Numerical Simulation Influx Performance prediction Structural optimization
CLC: TH313
Type: Master's thesis
Year: 2006
Downloads: 168
Quote: 3
Read: Download Dissertation

Abstract


In order to improve The transient pump launch system has superior steady state performance , discover special flow structure , to ensure the pump performance and structure to meet the needs of the launching system , in order to the turbopump launch system has a special structure type mixed flow pump as the object of study , the use of computational fluid dynamics (CFD) analysis, special mixed-flow pump in a variety of operating conditions of the internal flow state based on flow analysis to predict the steady-state performance of the conditions , and to analyze the different water structure on the pumps and emission system performance . Mixed-flow pump hydraulic performance and internal flow characteristics of the four methods , the comparison between the advantages and disadvantages of the various methods , numerical simulation is a study with a small investment , short study period , and accuracy is easy to improve fluid flow an effective way. Introduce the theory and basic methods of the the hydraulic machinery impeller flow numerical simulation study , comparing the advantages and disadvantages of the various turbulence models , and the applicability of CFD modeling of hydraulic machinery . Elaborate leaf shape , mesh generation , boundary wall conditions set method , and the the outer characteristics prediction method based on flow simulation . Specialty mixed flow pumps in all operating conditions of the internal flow of the whole numerical simulation overcurrent parts within the flow field analysis of a large flow of traffic to small changes in the flow field and the external characteristic curve will work the external characteristic results in the state with the model test data were compared with two good agreement . Based on the analysis of the basic model , change the mixed-flow pump water bodies , three different structural forms of internal flow simulation and external performance prediction , comparative analysis of the results , a special launch system is more suitable for mixed-flow pump water bodies . In this paper, special mixed-flow pump flow field simulation and prediction method of the external characteristics of this steady-state transient pump internal flow field of information and external performance characteristics , special mixed-flow pump performance improvement and optimization of the water way basis , but also enrich the findings of the mixed-flow pump flow simulation and structural optimization , has important theoretical significance and actual value .

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. The Brake Performance of Hydraulic Retarder and Simualtion Research on Its Application for Aircraft Arrestment,TH137.331
  6. Numerical Simulation of Film Cooling in Turbine Cascade with Non-Axisymmetric Endwall Method,V231.3
  7. High Speed Aerodynamic Convection and Coupled Heat Transfer of Complicated Bodies,V215.4
  8. The Analysis on Characteris of Vibration Source about Vertical Vibration of Surrounding Environment Induced by Rail Transit,U211.3
  9. Study on the Heat Transfer Characteristics of Particle Cluster in Circulating Fluidized Bed,TK124
  10. Numerical Simulation of SNCR Process of a 600MW Utility Boiler,TK222
  11. Numerical Simulation of Biomass Direct Reburning,TK16
  12. Numerical Simulation on Pulverized Coal Combustion Process in a 670T/H Tangential Firing Furnace,TK224.11
  13. Numerical Simulation on the Combustion Process in the Furnace of a 1000MW Lignite-Fired USC Boiler,TK224.11
  14. Study on Gas-Solid Two-Phase Flow in Spouted Beds,TK173
  15. Experimental Study and Numerical Simulation on Aerodynamic Field of Tangential Bias Swirl Burner,TK223.23
  16. Characteristic Study of Combustion in Central Reverse Flame Chamber,TK223.21
  17. Numerical Simulation and Contrastive Analysis of Labyrinth Seals and Leaf Seals,TK263.2
  18. Numerical Study on Phosphorus Distribution in Water Environment of the Three Gorges Reservoir,X832
  19. The Design and Performance Simulation of External Valve Small Displacement Pump,TE933.3
  20. Analysis of the Impact of Tailings Dam Stability under Seepage Role,TV649
  21. Study on Hydraulic Fracturing of Low Permeability Reservoir,P618.13

CLC: > Industrial Technology > Machinery and Instrument Industry > Pump > Vane pump > Mixed-flow pump
© 2012 www.DissertationTopic.Net  Mobile