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Keywords: turbines
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Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. June 2023, 145(6): 061001.
Paper No: TURBO-22-1276
Published Online: December 6, 2022
...@doctor.upv.es Email: irahbari@purdue.edu Email: john.clark.38@us.af.mil Email: gpaniagua@me.com Contributed by the International Gas Turbine Institute (IGTI) of ASME for publication in the J ournal of T urbomachinery . This work is in part a work of the U.S. Government. ASME disclaims...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Turbomach. November 2016, 138(11): 111007.
Paper No: TURBO-16-1051
Published Online: May 17, 2016
...Matthew Collins; Kam Chana; Thomas Povey The high pressure (HP) rotor tip and over-tip casing are often life-limiting features in the turbine stages of current gas turbine engines. This is due to the high thermal load and high temperature cycling at both low and high frequencies. In the last few...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2012, 134(4): 041022.
Published Online: July 25, 2011
...Vikram Shyam; Ali Ameri; Jen-Ping Chen In a previous study, vane-rotor shock interactions and heat transfer on the rotor blade of a highly loaded transonic turbine stage were simulated. The geometry consists of a high pressure turbine vane and a downstream rotor blade. This study focuses...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2012, 134(4): 041017.
Published Online: July 21, 2011
... is given. 02 04 2010 07 02 2011 21 07 2011 21 07 2011 stators turbines Basically, the only purpose of a turbine stage is to supply energy to devices such as electric generators or compressor stages. This energy is taken from the total enthalpy of the inlet fluid, which...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2012, 134(4): 041013.
Published Online: July 21, 2011
...Weiguo Ai; Nathan Murray; Thomas H. Fletcher; Spencer Harding; Scott Lewis; Jeffrey P. Bons Deposition on film-cooled turbine components was studied in an accelerated test facility. The accelerated deposition facility seeds a natural-gas burning combustor with finely ground coal ash particulate...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2012, 134(4): 041016.
Published Online: July 21, 2011
...Filippo Coletti; Manfredi Scialanga; Tony Arts The present contribution is devoted to the experimental study of the conjugate heat transfer in a turbine blade cooling cavity located near the trailing edge. The cooling scheme is characterized by a trapezoidal cross-section, one rib-roughened wall...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2012, 134(4): 041004.
Published Online: July 19, 2011
...S. Naik; C. Georgakis; T. Hofer; D. Lengani This paper investigates the flow, heat transfer, and film cooling effectiveness of advanced high pressure turbine blade tips and endwalls. Two blade tip configurations have been studied, including a full rim squealer and a partial squealer with leading...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2012, 134(3): 031013.
Published Online: July 15, 2011
... turbines The orifice equations for swirling flow developed by Owen ( 1 2 ) were applied to the case of externally induced (EI) ingress in Part I ( 3 ) of this two-part paper. The EI case applies when the ingress is dominated by the flow in the external annulus of a gas turbine, or, more accurately...
Journal Articles
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2012, 134(3): 031006.
Published Online: July 14, 2011
...Diganta P. Narzary; Kuo-Chun Liu; Akhilesh P. Rallabandi; Je-Chin Han Adiabatic film-cooling effectiveness is examined on a high-pressure turbine blade by varying three critical engine parameters, viz., coolant blowing ratio, coolant-to-mainstream density ratio, and freestream turbulence intensity...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Turbomach. May 2012, 134(3): 034501.
Published Online: July 14, 2011
...Ambady Suresh; Douglas C. Hofer; Venkat E. Tangirala The definition of turbine efficiency for a machine subjected to unsteady periodic inflows is studied. Since mass and energy are conserved quantities over a period, there is no ambiguity in calculating the actual work output of the turbine over...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2012, 134(3): 031007.
Published Online: July 14, 2011
...% for δ = 0.2 and by 45% for δ = 0.3 on the leading side from that of the stationary case. 08 07 2010 22 07 2010 14 07 2011 14 07 2011 blades boundary layers channel flow Coriolis force flow simulation heat transfer turbines Modern turbine blades are exposed...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2012, 134(3): 031003.
Published Online: July 14, 2011
...Budimir Rosic; Liping Xu Blade lean, i.e., nonradial blade stacking, has been intensively used over the past in the design process of low aspect ratio gas and steam turbines. Although its influence on turbine efficiency is not completely understood, it has been proved as an effective way...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2012, 134(2): 021025.
Published Online: July 7, 2011
.... Furthermore, the case of a turbine-like temperature ratio of TR = 0.44 has also been studied. Although a detailed description of the LES method and the boundary conditions can be found in Guo et al. ( 39 ), a short introduction of the method will be given in the following paragraphs...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2012, 134(2): 021024.
Published Online: July 7, 2011
... is used to predict turbine and compressor end wall flows, flow around a fan blade section, jet flows, and a cutback trailing edge. Also, application of NLES to the flow in an idealized high pressure compressor drum cavity is considered. Generally, encouraging results are found. However, challenges remain...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2012, 134(2): 021020.
Published Online: June 30, 2011
...P. Palafox; M. L. G. Oldfield; P. T. Ireland; T. V. Jones; J. E. LaGraff High resolution Nusselt number distributions were measured on the blade tip surface of a large, 1.0 m chord, low-speed cascade representative of a high-pressure turbine. Data were obtained at a Reynolds number of 4.0 × 10 5...