This paper describes an experimental investigation on a gas turbine combustor geometry that is typical of current aerospace applications. The isothermal investigation has concentrated on the flow approaching and passing through a primary port, and the subsequent jet formed by this flow within the flame tube. It is widely accepted that the jet formed by a port in such a geometry is influenced by the mean approach flow conditions. This paper, though, addresses whether the high levels of turbulence and unsteadiness, as is typically found within the approach flow of these systems, can also affect the time dependent jet and flow field generated by the port. Measurements using both hot wire anemometry (HWA) and a three component Laser Doppler Anemometry (LDA) system were therefore used to characterize the flow field. Cross correlation of simultaneous measurements indicated that velocity fluctuations in the feed annulus correlate with fluctuations inside the port and flame tube. The sign and magnitude of the correlations are presented between various feed annulus, port and flame tube spatial locations. The results suggest the time dependent external flow field can influence the flow field within the flame tube and hence, potentially, flame stability, mixing and emissions.
Skip Nav Destination
Article navigation
January 2004
Technical Papers
Unsteadiness of the Port Feed and Jet Flows Within a Gas Turbine Combustion System
N. J. Hughes, Research Associate,
N. J. Hughes, Research Associate
Rolls-Royce UTC in Combustor Aerodynamics, Dept of Aeronautical and Automotive Engineering, Loughborough University, Loughborough, U.K.
Search for other works by this author on:
J. F. Carrotte, RR Lecturer in Aerospace Propulsion
J. F. Carrotte, RR Lecturer in Aerospace Propulsion
Rolls-Royce UTC in Combustor Aerodynamics, Dept of Aeronautical and Automotive Engineering, Loughborough University, Loughborough, U.K.
Search for other works by this author on:
N. J. Hughes, Research Associate
Rolls-Royce UTC in Combustor Aerodynamics, Dept of Aeronautical and Automotive Engineering, Loughborough University, Loughborough, U.K.
J. F. Carrotte, RR Lecturer in Aerospace Propulsion
Rolls-Royce UTC in Combustor Aerodynamics, Dept of Aeronautical and Automotive Engineering, Loughborough University, Loughborough, U.K.
Contributed by the Fluids Engineering Division for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received by the Fluids Engineering Division Sept. 16, 2002; revised manuscript received September 16, 2003. Associate Editor: W. W. Copenhaver.
J. Fluids Eng. Jan 2004, 126(1): 55-62 (8 pages)
Published Online: February 19, 2004
Article history
Received:
September 16, 2002
Revised:
September 16, 2003
Online:
February 19, 2004
Citation
Hughes, N. J., and Carrotte, J. F. (February 19, 2004). "Unsteadiness of the Port Feed and Jet Flows Within a Gas Turbine Combustion System ." ASME. J. Fluids Eng. January 2004; 126(1): 55–62. https://doi.org/10.1115/1.1637629
Download citation file:
Get Email Alerts
Cited By
Related Articles
In Situ Detailed Chemistry Calculations in Combustor Flow Analyses
J. Eng. Gas Turbines Power (October,2001)
Mode´lisation et The´orie des Flammes. Modeling and Theory of Flames. (French)
Appl. Mech. Rev (September,2001)
Towards Modeling Lean Blow Out in Gas Turbine Flameholder Applications
J. Eng. Gas Turbines Power (January,2006)
3D RANS Simulation of Turbulent Flow and Combustion in a 5 MW Reverse-Flow Type Gas Turbine Combustor
J. Eng. Gas Turbines Power (November,2010)
Related Proceedings Papers
Related Chapters
The Identification of the Flame Combustion Stability by Combining Principal Component Analysis and BP Neural Network Techniques
International Conference on Mechanical Engineering and Technology (ICMET-London 2011)
Outlook
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
Introduction
Consensus on Operating Practices for Control of Water and Steam Chemistry in Combined Cycle and Cogeneration