1-20 of 31
Keywords: shock waves
Close
Sort by
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2011, 133(4): 041027.
Published Online: April 27, 2011
... spot” features on blade tip surfaces are attributed to enhanced turbulence thermal diffusion in local regions. Other surface heat-transfer variations are attributed to flow variations induced by shock waves. Flow structure and surface heat-transfer variations are also investigated numerically when...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2010, 132(2): 021017.
Published Online: January 20, 2010
... as an indicator for the onset of the self-induced unsteadiness in tip leakage flow. It is discussed that the interaction between shock wave and tip leakage vortex does not initiate the self-induced unsteadiness, but might be the cause of other types of unsteadiness, such as broad-banded turbulence unsteadiness...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2008, 130(4): 041014.
Published Online: August 1, 2008
... separation is found. 07 06 2007 20 08 2007 01 08 2008 aerospace components blades compressors computational fluid dynamics fast Fourier transforms flow instability numerical analysis rotors shock waves transonic flow vortices Advances in gas turbine engine...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2008, 130(3): 031022.
Published Online: May 7, 2008
... interaction mechanism with respect to clocking was given. It was found that clocking has a minor influence on the trailing edge shocks close to the rotor exit. While in LP turbines the dominant clocking mechanism is the wake-blade interaction, in transonic turbines, shock waves must be taken into account...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2008, 130(3): 031019.
Published Online: May 6, 2008
... CT3 ,” ASME Paper No. 92-GT-336. Doorly , D. J. , Oldfield , M. L. G. , and Scrivener , C. T. J. , 1985 , “ Wake Passing in a Turbine Rotor Cascade ,” AGARDograph No. 390. Doorly , D. J. , and Oldfield , M. L. G. , 1985 , “ Simulation of the Effects of Shock Wave...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2008, 130(3): 031010.
Published Online: May 2, 2008
... custom tailoring of its mean camber line. aerodynamics aerospace engines blades boundary layers fans shock waves transonic flow The trend in using wide chord fan blades to improve the aerodynamic performance of transonic blading has been one of the more significant technological...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 2008, 130(1): 011010.
Published Online: January 14, 2008
... by a vaned diffuser. The inlet flow to the open shrouded impeller is transonic, thus giving rise to interactions between shock waves and boundary layers and between shock waves and tip leakage vortices. These interactions generate complex flow structures which are convected and distorted through the impeller...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. January 2007, 129(1): 184–191.
Published Online: February 1, 2006
... engineering aircraft noise abatement Mach number supersonic flow shock waves nozzles jet engines While noise from civil aircraft has reduced significantly over the last 20 years, the downward trend is levelling off and, within the UK, predicted increases in aircraft movements are expected...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. January 2005, 127(1): 118–127.
Published Online: February 9, 2005
... rotor-locked shock wave field. The spatial evolution of this shock system is studied numerically for flows through two basic hard-walled configurations: a slender nacelle with large throat area and a thick nacelle with reduced throat area. With the flight Mach number set to 0.25, the spatial evolution...
Journal Articles
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. July 2006, 128(3): 474–483.
Published Online: February 1, 2005
... at solid walls. aerospace engines Navier-Stokes equations flow simulation design blades compressors fans transonic flow shock waves flow separation flow instability boundary layers turbulence external flows 01 10 2004 01 02 2005 The realizability concept proposed...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. October 2004, 126(4): 637–644.
Published Online: December 29, 2004
... case, the instability is referred to as screech or rumble, depending on the type of acoustic mode involved. thermoacoustics shock waves flow instability impedance matrix eigenvalues and eigenfunctions boundary-value problems 13 June 2004 01 October 2003 01 March 2004...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. July 2004, 126(3): 375–384.
Published Online: September 3, 2004
... 03 09 2004 wakes computational fluid dynamics turbines aerodynamics clocks viscosity measurement shock waves The real flow in multistage turbomachines is inherently unsteady because of the relative blade row motion. This causes unsteady interaction of pressure fields, shock...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. April 2003, 125(2): 336–345.
Published Online: April 23, 2003
... a moving shock wave that produces an entropy rise and loss is experienced. The effect of this outcome of blade-row interaction is to lower the efficiency, pressure ratio, and mass flow rate observed as blade-row axial spacing is reduced from far to close. The magnitude of loss production is affected...
Journal Articles
Publisher: ASME
Article Type: Article
J. Turbomach. April 2005, 127(2): 340–348.
Published Online: March 1, 2003
... the experimental data show a maximum overturning of − 62 deg . 01 12 2001 01 03 2003 boundary layers compressors flow measurement transonic flow shock waves rotors stators Compressor performance measured in terms of pressure ratio, efficiency...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. January 2003, 125(1): 33–39.
Published Online: January 23, 2003
... . Hodson, H. P., 1984, “Measurements of Wake Generated Unsteadiness in the Rotor Passages of Axial-Flow Turbines,” ASME 84-GT-189. Doorly , D. J. , and Oldfield , M. L. G. , 1985 , “ Simulation of the Effect of Shock Waves on a Turbine Rotor Blade ,” ASME J. Eng. Gas Turbines Power , 107...