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Keywords: swirling flow
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Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. April 2012, 134(4): 041503.
Published Online: January 27, 2012
... chemically reactive flow combustion combustion equipment flames flow instability flow simulation gas turbines swirling flow turbulence In Figs. 6a and 6b we show contours of the vorticity magnitude | ω ̃ | = 1 2 | ∇ × v ̃ | and the heat-release Q...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. October 2011, 133(10): 101501.
Published Online: April 25, 2011
...Stephan Burmberger; Thomas Sattelmayer A frequently employed method for aerodynamic flame stabilization in modern premixed low emission combustors is the breakdown of swirling flows; with carefully optimized tailoring of the swirler, a sudden transition in the flow field in the combustor can...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. May 2011, 133(5): 052906.
Published Online: December 13, 2010
.... Furthermore, we have systematically measured the twisted-tape-induced swirl flow heat transfer due to exponentially increasing heat inputs with various exponential periods ( Q = Q 0   exp ( t / τ ) , τ = 7 , 14, and 23 s) and the twisted-tape-induced pressure drop with mass...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Eng. Gas Turbines Power. April 2011, 133(4): 044501.
Published Online: November 18, 2010
...-fuel ratio was decreased. 04 06 2009 07 01 2010 18 11 2010 18 11 2010 combustion computational fluid dynamics diesel engines flow simulation swirling flow torque valves CFD has gained acceptance as a tool for engine design and to evaluate changes to engine...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. February 2011, 133(2): 021502.
Published Online: October 27, 2010
... 04 2010 19 04 2010 27 10 2010 27 10 2010 flames fluid oscillations gas turbines swirling flow Lean-premixed combustion has been successful in meeting current NO x emission regulations; however, this has been achieved at the expense of increased...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. January 2011, 133(1): 011504.
Published Online: September 17, 2010
... coefficient are carried out near the premixer inlet using an IMD placed at L 2 = 20   cm from the injection plane inside the premixer (Fig. 1 ). This distance was chosen to avoid any hydrodynamic pressure perturbation from the swirling flow inside the premixer. Locations of the acoustic...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. November 2010, 132(11): 111504.
Published Online: August 11, 2010
... model with enhanced wall treatment is employed to model turbulent swirl flow, whereas eddy break-up (EBU), presumed probability density function laminar flamelet model, and partially premixed coherent flame model (PCFM) are tried for reacting flow in the combustor. Independent simulations are carried...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. September 2010, 132(9): 091501.
Published Online: June 10, 2010
... combustion combustion equipment cooling Doppler measurement fuel systems gas turbines laser velocimetry swirling flow Lean premixed swirl stabilized combustion is successfully applied in gas turbine combustion systems to maintain low NO x and CO-emissions over a wide operating...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. August 2010, 132(8): 081502.
Published Online: May 18, 2010
... of the hydrocarbon SCF jets was similar to that of CO 2 SCF jets. 24 07 2007 08 04 2008 18 05 2010 fuel jets nozzles sprays swirling flow supercritical injection supercritical jets supercritical swirling jets The aim of the current study was to extend recent SCF jet...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. July 2010, 132(7): 071503.
Published Online: April 9, 2010
...Ashoke De; Shengrong Zhu; Sumanta Acharya An unconfined strongly swirled flow is investigated for different Reynolds numbers using particle image velocimetry (PIV) and large eddy simulation (LES) with a thickened-flame (TF) model. Both reacting and nonreacting flow results are presented. In the LES...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. July 2010, 132(7): 071502.
Published Online: April 7, 2010
... aerodynamics combustion combustion equipment confined flow flames jets swirling flow transfer functions The stability of lean premixed combustion systems with regard to self-sustained combustion instabilities can be evaluated with a stability analysis using the acoustic network modeling approach...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. April 2010, 132(4): 041502.
Published Online: January 19, 2010
... gas turbines heat transfer swirling flow turbulence The term “combustion instability” generally refers to the sustained high amplitude pressure fluctuations in a combustion chamber, resulting from the coupling between the system acoustics and the unsteady heat release. It is by nature...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. May 2009, 131(3): 032904.
Published Online: February 18, 2009
... = 246   mm ). Some of the large droplets (droplet diameter d > 40   μ m ) remain at the center. This might be because the centrifugal force vanishes at r = 0 . PDA measurement was carried out for swirling flows. Though...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. November 2008, 130(6): 061501.
Published Online: August 22, 2008
.... 29 06 2007 01 03 2008 22 08 2008 angular measurement nozzles sprays swirling flow pressure swirl cone angle nozzle pressure drop ambient pressure entrainment Recent advances in gas turbine engine technologies have allowed for the creation of larger, more...