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Keyword: wakes
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Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. December 2010, 132(12): 121501.
Published Online: August 20, 2010
... frequency are reported and discussed. The evolution of flame profile with excitation level is presented and discussed, together with the reduction in flame length. The flame in the unforced reacting axisymmetric wake is classified into three characteristic modes, which are weak swirling flame , lifted flame...
Journal Articles
Article Type: Technical Briefs
J. Eng. Gas Turbines Power. September 2009, 131(5): 054501.
Published Online: May 22, 2009
... combustion oscillations are found to be the low frequency oscillations, and the frequency of oscillations increases with a decrease in the inlet pipe length and an increase in the flow Reynolds number. It is suggested that such low frequency oscillations are driven by vortex shedding at the wake of the bluff...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. July 2008, 130(4): 041901.
Published Online: April 23, 2008
... development of gold gauges together with a brief overview of their calibration and signal processing is presented. Detailed time and phase-averaged measurements have been obtained, providing insight into the role of upstream nozzle guide vane (NGV) wakes and shock features. These heat transfer results...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2008, 130(2): 021603.
Published Online: January 22, 2008
... responsible for the high relative entropy levels at the shroud. On the other hand, at the midspan, a loss free, jet flow region and a channel wake flow of moderate mixing characterize the flowfield. At both the shroud and midspan, there are strong circumferential variations in the relative entropy. These...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. January 2007, 129(1): 80–87.
Published Online: February 1, 2006
... modified, following recommendations of earlier CFD work (Final Report No. TT03R01, 2003), to produce a secondary flow/wake structure that allows the prediffuser to operate at a higher area ratio without boundary layer separation. This is demonstrated to increase static pressure recovery and reduce dump...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. January 2007, 129(1): 61–68.
Published Online: September 28, 2005
... have stronger counterrotating vortex pairs (CVPs) than a corresponding single-phase JICF. Moreover, their trajectories are higher and their induced wakes weaker. The smaller the Stokes number of the droplets, the more the solution approaches the solution for single-phase flow. The computed results show...