Dissertation > Excellent graduate degree dissertation topics show

INVESTIGATION OF MECHANISM OF WIDENED STEADY WORKING RANGE FOR SKEWED-SWEPT ROTATING BLADES

Author: ZouTieFeng
Tutor: CaiNa
School: North China Electric Power University
Course: Power Engineering
Keywords: Swept rotor blades Numerical Simulation NND scheme Radial pressure gradient The expanding stable machine management
CLC: TB126
Type: Master's thesis
Year: 2001
Downloads: 98
Quote: 0
Read: Download Dissertation

Abstract


The bend of the paper with the same geometric structure parameters and aerodynamic parameters swept rotor and radial dynamic leaves , aerodynamic flow field calculation , the purpose is to reveal swept automatically the leaf blower expand the stable operating range mechanism . Through the analysis of the calculation results , swept rotor blades using change factors play a decisive role in the entire flow field - radial pressure gradient . Radial pressure gradient essentially led to changes in the structure of the flow field , a change in the flow parameters . Will calculate the results of the efficiency of the rotor blades , pressure rise , and the export flow angle , loss and average pressure ratio along the blade distribution with the experimental results , high precision calculations , the use of the numerical model is reasonable , be able to simulate the reliable cascade of internal flow field . Stable conditions the aerodynamic calculation swept move cascade broaden the operating range of the mechanism analysis provides a theoretical basis . This article is the three Wei Leinuo average Navier-Stokes equations , and several high-resolution format a comparative analysis , the final selection of the calculation NND format for high-precision format , application no matrix inversion LU-SGS implicit algorithm to solve the equation . The use of the LU-SGS algorithm greatly improves the speed of convergence of the numerical calculation of the turbulent flow field , swept move Yesan Wei viscous flow field complex and time-consuming flow numerical simulation of good performance in both accuracy and computational efficiency . . Radial dual actuator disk theory model masterpiece amended to make it more in line with the swept rotor blades liquidity situation . Also were swept rotor blades and radial design of the rotor blades , select reasonable parameters , the use of isolated airfoil theory to carry out aerodynamic blade design the structure of the blade . And the the swept angle values ??and different center of gravity line of the aerodynamic performance of the rotor blades , and select the appropriate the swept angle values ??and focus line . Finally, consider the movement leaves the match , the prospect of the swept rotor blade optimization design .

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. Study on the Heat Transfer Characteristics of Particle Cluster in Circulating Fluidized Bed,TK124
  9. Numerical Simulation of SNCR Process of a 600MW Utility Boiler,TK222
  10. Numerical Simulation of Biomass Direct Reburning,TK16
  11. Numerical Simulation on Pulverized Coal Combustion Process in a 670T/H Tangential Firing Furnace,TK224.11
  12. Numerical Simulation on the Combustion Process in the Furnace of a 1000MW Lignite-Fired USC Boiler,TK224.11
  13. Study on Gas-Solid Two-Phase Flow in Spouted Beds,TK173
  14. Experimental Study and Numerical Simulation on Aerodynamic Field of Tangential Bias Swirl Burner,TK223.23
  15. Characteristic Study of Combustion in Central Reverse Flame Chamber,TK223.21
  16. Numerical Study on Phosphorus Distribution in Water Environment of the Three Gorges Reservoir,X832
  17. Study on Hydraulic Fracturing of Low Permeability Reservoir,P618.13
  18. Multilayer coextrusion drooling forming process temperature control technology,TQ320.721
  19. Changchun High- temperature low-pressure ridge containing wax reservoir development and technological measures,TE349
  20. Coal mining impacts on groundwater numerical simulation,TD741
  21. Dai Shun Mine Collapse Column 4325 track characteristics and control technology research and development,TD745

CLC: > Industrial Technology > General industrial technology > Engineering and basic science > Engineering Mechanics > Engineering Fluid Mechanics
© 2012 www.DissertationTopic.Net  Mobile