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Keywords: Navier-Stokes equations
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Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2012, 134(4): 041020.
Published Online: July 25, 2011
... discs (structures) fly ash gas turbines Navier-Stokes equations temperature distribution The continuous demand on performance improvement in gas turbine engines requires the engine components to be designed for higher combustor exit temperatures. Current advanced gas turbine engines operate...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2012, 134(4): 041022.
Published Online: July 25, 2011
... of the leakage flow, it results in a drop in efficiency. blades flow instability heat transfer Navier-Stokes equations rotors subsonic flow transonic flow turbines turbulence 02 11 2010 12 09 2010 25 07 2011 25 07 2011 The United States Government retains...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2012, 134(3): 031020.
Published Online: July 15, 2011
... NavierStokes equations supplemented with κ - ω -SST turbulence model. Of special interest herein is the flow physics resulting from optimization, revealing the intricate connections to the remarkable reduction in flow distortion and total pressure losses at the engine face. It is discovered...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2012, 134(3): 031021.
Published Online: July 15, 2011
..., a detailed description of the redesign procedure is provided, and the aerodynamic characteristics of the optimized geometry are discussed and compared with the original ones. 16 06 2009 23 08 2010 15 07 2011 15 07 2011 mechanical engineering computing Navier-Stokes equations...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2012, 134(2): 021023.
Published Online: July 7, 2011
... and show encouraging results. Further results are presented in a companion paper. 02 07 2010 30 07 2010 07 07 2011 07 07 2011 compressible flow jets Navier-Stokes equations turbomachinery In turbomachinery design ( 1 2 ), RANS models commonly encounter problems when...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2012, 134(2): 021024.
Published Online: July 7, 2011
... 02 07 2010 30 07 2010 07 07 2011 07 07 2011 compressors flow simulation Navier-Stokes equations turbines turbomachinery The industrial application of LES and hybrid RANS-LES is increasing. However, the more robust general solvers through which it is applied...
Journal Articles
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2011, 133(4): 041016.
Published Online: April 21, 2011
...Xinqian Zheng; Yangjun Zhang; Weidong Xing; Junyue Zhang Flow separation control was investigated on a compressor cascade using three types of fluidic-based excitations: steady suction, steady blowing, and synthetic jet. By solving unsteady Reynolds–averaged NavierStokes equations, the effect...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2011, 133(4): 041013.
Published Online: April 21, 2011
... compressible flow compressors confined flow Navier-Stokes equations 12 09 2010 20 10 2010 21 04 2011 21 04 2011 2011 American Society of Mechanical Engineers ...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2011, 133(4): 041010.
Published Online: April 20, 2011
... and Navier-Stokes Equations ( 30th VKI Lecture Series on Computational Fluid Dynamics ). Jameson , A. , 1991 , “ Time Dependent Calculations Using Multigrid, With Applications to Unsteady Flows Past Airfoils and Wings ,” AIAA Paper No. 91-1596. Bonfiglioli , A. , Campobasso , M...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2011, 133(4): 041004.
Published Online: April 19, 2011
... 2008 22 02 2009 19 04 2011 19 04 2011 aerodynamics aerospace components bubbles coatings compressors computational fluid dynamics gas turbines Mach number Navier-Stokes equations turbulence Axial compressors are widely used in gas turbines, particularly...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2011, 133(3): 031025.
Published Online: December 7, 2010
... 09 2009 21 12 2009 07 12 2010 07 12 2010 aerodynamics aerospace engines computational fluid dynamics mesh generation Navier-Stokes equations rotors turbomachinery Conventional turboprops have an inherent advantage over turbojet and turbofan engines for flight Mach...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2011, 133(3): 031024.
Published Online: December 7, 2010
.... These devices enhance the cooling effectiveness by augmenting convective heat transfer and turbulence transport coefficients, besides increasing the surface area for convective heat transfer. aerodynamics cavitation channel flow finite volume methods heat transfer jets Navier-Stokes equations...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2011, 133(3): 031014.
Published Online: November 16, 2010
... , A. , Pierce , N. A. , and Martinelli , L. , 1997 , “ Optimum Aerodynamic Design Using the Navier-Stokes Equations ,” Proceedings of the AIAA 35th Aerospace Sciences Meeting and Exhibit , Reno, NV. Reuther , J. , Jameson , A. , Farmer , J. , Martinelli , L. , and Saunders , D...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2011, 133(3): 031010.
Published Online: November 15, 2010
... regions, up to 15% higher. The results for the endwall heat transfer were compared with results in open literature and were found to be comparable. 27 08 2009 22 05 2010 15 11 2010 15 11 2010 blades flow instability flow simulation gas turbines heat transfer Navier-Stokes...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2011, 133(2): 021017.
Published Online: October 25, 2010
..., the configurations were investigated numerically by solving the Reynolds-averaged NavierStokes equations using the finite-volume solver FLUENT . The numerical grids were generated by the hybrid grid generator CENTAUR . Three different turbulence models were considered: the realizable k - ε model with two-layer wall...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2011, 133(2): 021013.
Published Online: October 22, 2010
... compressors Navier-Stokes equations rotors stators transonic flow In order to design for the mechanical integrity of gas turbine engines one of the main objectives is to ensure that the components operate under the high cycle fatigue (HCF) margins. In general, levels of dynamic stresses...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2011, 133(2): 021002.
Published Online: October 19, 2010
... losses were determined in separate experiments by local static pressure measurements. Furthermore, a computational study was performed solving the Reynolds-averaged NavierStokes equations using the commercial finite-volume solver FLUENT . The numerical grids were generated using the hybrid grid...