Effect of Secondary Jet-flow Angle on Performance of Turbine Inter-guide-vane Burner Based on Jet-vortex Flow
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Haifei Zheng
,
Xingya Xu
Abstract
Four different secondary airflow angles for the turbine inter-guide-vane burners with trapped vortex cavity were designed. Comparative analysis between combustion performances influenced by the variation of secondary airflow angle was carried out by using numerical simulation method. The turbulence was modeled using the Scale-Adaptive Simulation (SAS) turbulence model. Four cases with different secondary jet-flow angles (−45°, 0°, 30°, 60°) were studied. It was observed that the case with secondary jet-flows at 60° angle directed upwards (1) has good mixing effect; (2) mixing effect is the best although the flow field distributions inside both of the cavity and the main flow passage for the four models are very similar; (3) has complete combustion and symmetric temperature distribution on the exit section of guide vane (X = 70 mm), with uniform temperature distribution, less temperature gradient, and shrank local high temperature regions in the notch located on the guide vane.
©2014 by Walter de Gruyter Berlin/Boston
Articles in the same Issue
- Frontmatter
- Editorial on Future Jet Technologies
- Flow Pattern Characterization for a Centrifugal Impeller
- Numerical Analysis of Flow through a Contour Nozzle Kept in a Supersonic Stream
- An Extended Combustion Model for the Aircraft Turbojet Engine
- Effect of Secondary Jet-flow Angle on Performance of Turbine Inter-guide-vane Burner Based on Jet-vortex Flow
- Experimental Studies on the Fuel Control Method of the Scramjet Combustor
- Gas Path On-line Fault Diagnostics Using a Nonlinear Integrated Model for Gas Turbine Engines
Articles in the same Issue
- Frontmatter
- Editorial on Future Jet Technologies
- Flow Pattern Characterization for a Centrifugal Impeller
- Numerical Analysis of Flow through a Contour Nozzle Kept in a Supersonic Stream
- An Extended Combustion Model for the Aircraft Turbojet Engine
- Effect of Secondary Jet-flow Angle on Performance of Turbine Inter-guide-vane Burner Based on Jet-vortex Flow
- Experimental Studies on the Fuel Control Method of the Scramjet Combustor
- Gas Path On-line Fault Diagnostics Using a Nonlinear Integrated Model for Gas Turbine Engines
