Dissertation > Excellent graduate degree dissertation topics show

Numerical Simulation and Optimization Design Research for Film Cooling on Gas Turbine

Author: WangLei
Tutor: WangJian
School: Dalian University of Technology
Course: Vehicle Engineering
Keywords: Numerical Simulation Film cooling Than the flow Aperture The angle of incidence Optimal Design
CLC: TK471
Type: Master's thesis
Year: 2008
Downloads: 255
Quote: 1
Read: Download Dissertation

Abstract


The gas turbine is a new power plant, has been widely used in the field of aviation, power generation, metallurgy, chemical industry, communication, energy and power engineering increasingly important role in the national economy and national defense construction. Advanced turbine engine inlet temperature has reached about 2000K, the high melting point of the metal material of the high-pressure turbine blade 400K Accordingly, the cooling measures must be taken to reduce the surface temperature of the member, to reduce the thermal load. The current method of protection against heat hot parts of the engine the disturbance cooling, impingement cooling and film cooling. Film cooling technology is the most widely used and most promising, so the film cooling hole was design is very important. At present, domestic and foreign workers, mostly through experiment and experience design research, few considered from the point of view of the optimal design. Various parts of the cooling effect of the numerical simulation of turbine blade surface has become possible with the development of the calculation of fluid mechanics and computer. The application of numerical simulation methods can be difficult to measure the parameters of the experiment can be estimated, the inner flow field distribution and the surface temperature distribution characteristics can be very accurate simulation without the need for a large number of experiments. The method of numerical simulation analysis and study of the cooling of the turbine blades, will help improve the reliability and economy of the work, the numerical simulation method is the study of an important means of gas turbine blade cooling technology. In this paper, the Fine NUMECA / Turbo package, a numerical simulation of film cooling turbine cascade, static pressure distribution and heat flow rate results in good agreement with the experimental results verify the numerical simulation feasibility and select a suitable turbulence model. Change the aperture and the incident angle of the film cooling holes on the leading edge of the blade has a single exhaust film cooling holes in turbine cascade carried out a detailed three-dimensional numerical simulation, the aperture and the angle of incidence changes downstream of the film cooling holes The active area and the cooling air flow impact. And on this basis, in Matlab numerical analysis, the relationship between aperture and cooling air flow with the angle of incidence changes in temperature constraints than to lay a good foundation for the optimal design of the film cooling hole for engineering design provides a valuable reference. Finally, the article also on the graduate level work done - hybrid cooling and vibration isolation design of the controller are introduced briefly.

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 Investigation of Effects of Boundary Layer Suction on the Performance of Diffusion Cascade,TH453
  6. Finite Element Analysis and Structure Optimal Design for Combined Seal at Normal Temperature and Low Temperature,TH136
  7. Numerical Simulation of Film Cooling in Turbine Cascade with Non-Axisymmetric Endwall Method,V231.3
  8. High Speed Aerodynamic Convection and Coupled Heat Transfer of Complicated Bodies,V215.4
  9. The Analysis on Characteris of Vibration Source about Vertical Vibration of Surrounding Environment Induced by Rail Transit,U211.3
  10. Study on the Heat Transfer Characteristics of Particle Cluster in Circulating Fluidized Bed,TK124
  11. Numerical Simulation of SNCR Process of a 600MW Utility Boiler,TK222
  12. Numerical Simulation of Biomass Direct Reburning,TK16
  13. Numerical Simulation on Pulverized Coal Combustion Process in a 670T/H Tangential Firing Furnace,TK224.11
  14. Numerical Simulation on the Combustion Process in the Furnace of a 1000MW Lignite-Fired USC Boiler,TK224.11
  15. Study on Gas-Solid Two-Phase Flow in Spouted Beds,TK173
  16. Experimental Study and Numerical Simulation on Aerodynamic Field of Tangential Bias Swirl Burner,TK223.23
  17. Characteristic Study of Combustion in Central Reverse Flame Chamber,TK223.21
  18. Numerical Simulation and Contrastive Analysis of Labyrinth Seals and Leaf Seals,TK263.2
  19. Numerical Study on Phosphorus Distribution in Water Environment of the Three Gorges Reservoir,X832
  20. The Design and Performance Simulation of External Valve Small Displacement Pump,TE933.3
  21. Analysis of the Impact of Tailings Dam Stability under Seepage Role,TV649

CLC: > Industrial Technology > Energy and Power Engineering > Internal combustion engine > Gas turbine ( gas turbine ) > Theory
© 2012 www.DissertationTopic.Net  Mobile