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Keywords: Cavities
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Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2018, 140(12): 122503.
Paper No: GTP-18-1338
Published Online: August 30, 2018
...; published online August 30, 2018. Editor: Jerzy T. Sawicki. 25 06 2018 29 06 2018 Aerodynamics Aerospace applications Cavities Computational fluid dynamics Design optimization Experimental Labyrinth seals are the most popular and the oldest sealing solution...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2018, 140(7): 071902.
Paper No: GTP-17-1200
Published Online: April 25, 2018
.... 07 06 2017 21 10 2017 Aerospace applications Cavities Gas turbine technology Heat transfer Internal flow Figure 1 from Ref. [ 1 ] shows a high-pressure compressor rotor where cooling air flows axially through the clearance between the bores of the compressor disks...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2018, 140(7): 071901.
Paper No: GTP-17-1485
Published Online: April 20, 2018
... manuscript received October 10, 2017; published online April 20, 2018. Editor: David Wisler. 30 08 2017 10 10 2017 Cavities Computational fluid dynamics Convective heat transfer Fuel efficiency of a gas turbine used for power generation depends on the performance of many key...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2018, 140(7): 072507.
Paper No: GTP-17-1331
Published Online: April 16, 2018
... Wisler. 10 07 2017 31 08 2017 Cavities Experimental Turbines The gas turbine is a combustion engine that can convert natural gas or other liquid fuels to mechanical energy. This energy can be used to drive a generator that produces electrical energy, or form the core...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2018, 140(7): 072504.
Paper No: GTP-17-1332
Published Online: April 10, 2018
... and protect vulnerable components from the hot gases which would otherwise be entrained into disk cavities through clearances between rotating and static disks. Rim seals are fitted at the periphery of these disks to minimize purge. The mixing between the efflux of purge (or egress) and the mainstream gases...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2018, 140(6): 062502.
Paper No: GTP-17-1432
Published Online: January 17, 2018
...Rachel A. Berg; C. S. Tan; Zhongman Ding; Gregory Laskowski; Pepe Palafox; Rinaldo Miorini Fast response pressure data acquired in a high-speed 1.5-stage turbine hot gas ingestion rig (HGIR) show the existence of pressure oscillation modes in the rim-seal-wheelspace cavity of a high pressure gas...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2017, 139(11): 112601.
Paper No: GTP-16-1545
Published Online: July 19, 2017
... levels of cavity seal effectiveness. Unlike the double lip seal, the single lip seal is sensitive to overall Reynolds number, the addition of a simulated blade pressure field, and large-scale nonuniform ingestion. In the case of both seals, unsteady pressure variations attributed to shear layer...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2017, 139(7): 071504.
Paper No: GTP-14-1666
Published Online: March 7, 2017
...P. K. Ezhil Kumar; D. P. Mishra Trapped vortex combustor (TVC) is a relatively new concept, having potential application in gas turbine engines. In this work, an attempt has been made to characterize the 2D twin cavity TVC experimentally in terms of its visible flame length, pollutant emission...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2017, 139(7): 072603.
Paper No: GTP-16-1472
Published Online: February 14, 2017
... and to minimize the engine specific fuel consumption. To prevent overheating of the materials and thus the reduction of component life, an internal flow system is required to cool and protect the critical engine parts. Previous studies have shown that the insertion of a deflector plate in turbine cavities leads...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2017, 139(6): 062508.
Paper No: GTP-16-1497
Published Online: February 7, 2017
...Richard J. Jefferson-Loveday A new modeling approach has been developed that explicitly accounts for expected turbulent eddy length scales in cavity zones. It uses a hybrid approach with Poisson and Hamilton–Jacobi differential equations. These are used to set turbulent length scales to sensible...
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
..., the ADDTN starting problem has been studied by steady and unsteady numerical simulations. The effects of nozzle geometric parameters on internal nozzle performance have been discussed in detail, including cavity divergence angle, cavity convergence angle, cavity length, expansion ratio, rounding radius...
Topics: Cavities, Nozzles
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2017, 139(4): 041901.
Paper No: GTP-16-1290
Published Online: October 18, 2016
... well cavity rig, due to the interaction of cooling air supply with the main annulus. Previous work based on the same rig showed difficulties in matching predictions to thermocouple measurements near the rim seal gap. In this investigation, two different types of turbine stator well geometries were...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2017, 139(3): 032602.
Paper No: GTP-16-1282
Published Online: October 11, 2016
... URBINES AND P OWER . Manuscript received June 28, 2016; final manuscript received July 28, 2016; published online October 11, 2016. Editor: David Wisler. 28 06 2016 28 07 2016 Cavities Computational fluid dynamics Experimental Internal flow The gas turbine secondary air...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2017, 139(1): 012603.
Paper No: GTP-16-1291
Published Online: August 23, 2016
... 06 2016 Cavities Experimental Turbines Fig. 1 Typical rim seal in a high-pressure turbine There is a growing trend within industry to design rim seals using advanced computational fluid dynamics (CFD). However, simulations of the complex, three-dimensional flows...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2016, 138(12): 120801.
Paper No: GTP-15-1491
Published Online: July 27, 2016
...: Alexandrina Untaroiu. 14 10 2015 02 06 2016 Cavities Internal flow Turbines The continued striving for improved gas turbine efficiency and performance has placed an increasing significance on the capability of the secondary air system to manage this expensive cooling air...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2016, 138(7): 072501.
Paper No: GTP-15-1372
Published Online: December 4, 2015
...Dongdong Liu; Zhi Tao; Xiang Luo; Hongwei Wu; Xiao Yu This article presents a further investigation on the mechanism of hot gas ingestion by exploring the ingress with complicated cavity generated by the rotor-mounted cylinder protrusion. During the experiment, a cavity with 32 cylinder protrusions...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2016, 138(3): 032505.
Paper No: GTP-15-1298
Published Online: October 6, 2015
...Zixiang Sun; Dario Amirante; John W. Chew; Nicholas J. Hills Flow and heat transfer in an aero-engine compressor disk cavity with radial inflow has been studied using computational fluid dynamics (CFD), large eddy simulation (LES), and coupled fluid/solid modeling. Standalone CFD investigations...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2015, 137(12): 122502.
Paper No: GTP-14-1277
Published Online: June 9, 2015
..., 2015; published online June 9, 2015. Assoc. Editor: Jerzy T. Sawicki. 10 06 2014 30 04 2015 Bubble growth Cavities Computational fluid dynamics Film Heat transfer Hydrodynamic journal bearings are widely used in steam turbines and gas turbines. The performance...