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Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2019, 141(7): 071004.
Paper No: GTP-18-1449
Published Online: January 11, 2019
... computational heat transfer internal flow jets swirling turbines In order to further increase the efficiency and power, gas temperature at gas turbine inlet becomes extremely high which is far beyond the thermal limit of the material. Thus, cooling technique is critical to protect the blade and...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2018, 140(10): 102811.
Paper No: GTP-18-1096
Published Online: July 10, 2018
...Georg Fink; Michael Jud; Thomas Sattelmayer In this paper, pilot-ignited high pressure dual-fuel combustion of a natural gas jet is investigated on a fundamental basis by applying two separate single-hole injectors to a rapid compression expansion machine (RCEM). A S hadowgraphy system is used for...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2018, 140(9): 092802.
Paper No: GTP-18-1083
Published Online: May 24, 2018
... Convective heat transfer Design optimization Droplet Environmental Evaporation Experimental Jets Mass Transfer Sprays Thermodynamics Two-phase Vaporization Marine diesel engines operate at high temperatures and use heavy oil with high sulfur content [ 1 ]. This leads to high emissions of...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2018, 140(8): 082602.
Paper No: GTP-17-1259
Published Online: April 12, 2018
... online April 12, 2018. Assoc. Editor: Haixin Chen. 03 07 2017 06 11 2017 Aerodynamics Computational fluid dynamics Internal flow Jets Swirling The recent advancement of heat-seeking missiles and radar seekers has highly increased the vulnerability of fighters propelled...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2018, 140(5): 051506.
Paper No: GTP-17-1409
Published Online: January 10, 2018
... OWER . Manuscript received July 28, 2017; final manuscript received August 22, 2017; published online January 10, 2018. Editor: David Wisler. 28 07 2017 22 08 2017 Finite element Jets Shear Flows Turbulence Unsteady flows Swirled fuel injection systems are often used in...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2018, 140(4): 041508.
Paper No: GTP-17-1379
Published Online: November 7, 2017
...Michael Severin; Oliver Lammel; Holger Ax; Rainer Lückerath; Wolfgang Meier; Manfred Aigner; Johannes Heinze A model FLOX ® combustor, featuring a single high momentum premixed jet flame, has been investigated using laser diagnostics in an optically accessible combustion chamber at a pressure of 8...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2018, 140(4): 041503.
Paper No: GTP-17-1340
Published Online: October 31, 2017
..., thermoacoustic instabilities, and pollutant emissions is still unclear. In order to identify and investigate these mechanisms, the PVC needs to be controlled effectively with a feedback control system. A previous study successfully applied feedback control in a generic swirling jet setup. The next step is to...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2018, 140(3): 031502.
Paper No: GTP-17-1255
Published Online: October 17, 2017
.... 03 07 2017 24 07 2017 Combustion Experimental Flame Gas turbine technology Jets Shear Flows Unsteady flows Hydrogen-rich fuels can play a major role in achieving de-carbonization targets in power generation systems with minimal Co 2 emissions and minimal environmental...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2018, 140(2): 021502.
Paper No: GTP-17-1316
Published Online: October 3, 2017
... through two synchronized perpendicular cameras was applied on the KIAI-Spray linear multi-injector burner. Four different injector-to-injector distances and four fuels of different volatilities ( n -heptane, n -decane, n -dodecane, and jet-A1 kerosene) were evaluated. Spray branches and interinjector...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2018, 140(2): 021501.
Paper No: GTP-17-1283
Published Online: October 3, 2017
...Andreas Schwärzle; Thomas O. Monz; Andreas Huber; Manfred Aigner Jet-stabilized combustion is a promising technology for fuel flexible, reliable, highly efficient combustion systems. The aim of this work is a reduction of NO x emissions of a previously published two-stage micro gas turbine (MGT...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2017, 139(12): 122802.
Paper No: GTP-17-1127
Published Online: August 9, 2017
... have little to no effect on the ignition delay. Higher intake pressure was shown to increase ignition delay due to the effect of swirl momentum on fuel jet development, air entrainment, and jet deflection away from optimal contact with the glow plug ignition source. Analysis of combustion was carried...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2017, 139(11): 111202.
Paper No: GTP-17-1053
Published Online: August 1, 2017
... deployable mechanism on a full-scale, mixed-exhaust, medium-bypass-ratio business jet engine (Williams International FJ44-4A) operating at the upper end of typical approach throttle settings. The final prototype design satisfied a set of critical technology demonstration requirements that included (1...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2017, 139(10): 102811.
Paper No: GTP-17-1056
Published Online: May 16, 2017
... computational fluid dynamics (CFD) study is to identify the effect of a given piston cooling nozzle (PCN) geometry on the cooling oil jet spreading phenomenon. The scope of this study is to develop a numerical setup using the open-source CFD toolkit OpenFoam ® for measuring the magnitude of oil jet spreading...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2017, 139(9): 092804.
Paper No: GTP-16-1580
Published Online: April 19, 2017
... 2016 18 02 2017 Computational fluid dynamics Fluids Jets Multiphase flows Sprays Two-phase Lower engine emissions and improved fuel efficiency have recently become more necessary in automobile engines to protect the earth's environment. In order to optimize air/fuel mixtures in...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2017, 139(8): 082601.
Paper No: GTP-16-1217
Published Online: March 21, 2017
...Liwei Zhang; Vigor Yang A large-eddy-simulation-based numerical investigation of a turbulent gaseous jet in crossflow (JICF) is presented. The present work focuses on cases with a steady crossflow and two different jet-to-crossflow velocity ratios, 2 and 4, at the same jet centerline velocity of...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2017, 139(8): 082602.
Paper No: GTP-16-1218
Published Online: March 21, 2017
...Liwei Zhang; Vigor Yang The present work extends Part I of our study to investigate the flow dynamics and scalar mixing of a turbulent gaseous jet in an oscillating crossflow. Attention is first given to intrinsic flow instabilities under a steady condition. Both power spectral density and proper...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2017, 139(6): 062602.
Paper No: GTP-16-1255
Published Online: January 18, 2017
... . Manuscript received June 21, 2016; final manuscript received September 25, 2016; published online January 18, 2017. Assoc. Editor: Eric Petersen. 21 06 2016 25 09 2016 Aeronautical propulsion Cavities Computational fluid dynamics Internal flow Jets Separated Unsteady flows...
Topics: Cavities, Nozzles
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2017, 139(3): 031904.
Paper No: GTP-16-1313
Published Online: October 4, 2016
... flow tracer, indicate that the effectiveness levels on the stator and rotor side of the cavity depend on the mass and momentum flux ratios of the purge jets relative to the swirl velocity. For a given purge flow rate, fewer purge holes resulted in better sealing than the case with a larger number of...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2017, 139(2): 022604.
Paper No: GTP-16-1271
Published Online: September 13, 2016
...Lothar Rukes; Moritz Sieber; C. Oliver Pashereit; Kilian Oberleithner Swirling jets undergoing vortex breakdown are widely used in combustion applications, due to their ability to provide aerodynamic flame stabilization. It is well known that vortex breakdown is accompanied by a dominant coherent...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2016, 138(12): 122804.
Paper No: GTP-16-1064
Published Online: August 2, 2016
... J. Jacobs. 09 02 2016 28 06 2016 Computational fluid dynamics Internal combustion engines Internal flow Jets Mixed Process Modeling CNG, one of the most promising alternative fuels, is widely used in engines due to its rich resource and cheap price [ 1 ]. Although...