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Keywords: pressure measurement
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Journal Articles
Journal:
Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. October 2011, 133(4): 041022.
Published Online: April 26, 2011
... cooling engines heat conduction nozzles pressure measurement radiation stagnation flow temperature measurement thermocouples transducers valves Precise and reliable instruments for stagnation temperature and pressure measurements in the most hostile sections of the turbine are needed...
Journal Articles
Journal:
Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. July 2011, 133(3): 031023.
Published Online: December 7, 2010
... in the seal region. 07 02 2010 22 02 2010 07 12 2010 07 12 2010 flow simulation gas turbines pressure measurement rotors seals (stoppers) stators velocity measurement In gas turbine stages, the ingestion of mainstream gas into rotor-stator disk cavities...
Journal Articles
Journal:
Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. July 2011, 133(3): 031019.
Published Online: November 18, 2010
... and R , respectively). friction heat transfer plates (structures) pressure measurement thermocouples The gas turbine industry continually seeks to increase the operating temperature of the engine in order to achieve higher efficiency. Cooling gas turbine vanes and blades to prevent...
Journal Articles
Journal:
Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. April 2011, 133(2): 021019.
Published Online: October 25, 2010
... cylindrical or fan-shaped holes. The measurements comprise adiabatic film cooling effectiveness and profile static pressure measurements. The surface temperature was acquired with thermochromatic liquid crystals and using a hue to temperature correlation. The results shown are for variations in main flow Mach...
Journal Articles
Journal:
Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. January 2011, 133(1): 011001.
Published Online: September 7, 2010
... 18 06 2007 03 07 2007 07 09 2010 07 09 2010 gas turbines heat exchangers heat measurement heat transfer pressure measurement One feature common to all modern gas turbine engines is that the main gas path temperatures are hotter than the melting point of various...
Journal Articles
Journal:
Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. October 2010, 132(4): 041014.
Published Online: May 6, 2010
... fluid dynamics distortion fans Navier-Stokes equations numerical analysis pressure measurement temperature measurement The fan and compressor of a modern aircraft engine are seldom run in a uniform inlet flow field after entering service. Ever since the early days of aircraft engine...
Journal Articles
Journal:
Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. January 2010, 132(1): 011013.
Published Online: September 17, 2009
... measurements to the existing database. The cascade was tested at design incidence and at an inlet Reynolds number of 126,000 based on inlet midspan velocity and axial chord. Quantitative results include seven-hole pneumatic probe pressure measurements downstream of the cascade to assess blade row losses...
Journal Articles
Journal:
Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. October 2009, 131(4): 041013.
Published Online: July 6, 2009
.... Experiments were undertaken on the stator suction surface; these included hotwire boundary-layer traverses, surface hotfilm measurements, and high resolution leading-edge pressure measurements. Steady computational fluid dynamics (CFD) predictions were also performed to aid the interpretation of the results...
Journal Articles
Journal:
Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. July 2009, 131(3): 031014.
Published Online: April 10, 2009
... , W. S. , 1997 –2005, IMAGEJ , U.S. National Institutes of Health , Bethesda Maryland, http://rsb.info.nih.gov/ij Holley , B. M. , and Langston , L. S. , 2006 , “ Surface Shear Stress and Pressure Measurements in a Turbine Cascade ,” ASME Paper No. GT2006-90580. Holley...
Journal Articles
Journal:
Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. April 2009, 131(2): 021005.
Published Online: January 22, 2009
... orifices (mechanical) pressure measurement seals (stoppers) wakes In the state-of-the-art aircraft and electric power generation gas turbine engines, the high-pressure turbine disks are purged with coolant air through the wheel space. This air reduces the thermal load of the disk and prevents...
Journal Articles
Journal:
Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. January 2009, 131(1): 011019.
Published Online: November 10, 2008
... coolant ejection. ( b ) SS coolant ejection. 05 07 2007 27 07 2007 10 11 2008 blades coolants cooling gas turbines Mach number pressure measurement subsonic flow testing vortices wakes The ability of today’s gas turbine engines to withstand increasingly higher...
Journal Articles
D. Christensen, P. Cantin, D. Gutz, P. N. Szucs, A. R. Wadia, J. Armor, M. Dhingra, Y. Neumeier, J. V. R. Prasad
Journal:
Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. July 2008, 130(3): 031011.
Published Online: May 2, 2008
... of periodicity as observed by over-the-rotor dynamic pressure measurements when the compressor is operating far away from stall Figures 1 2 show pressure time traces obtained on the Georgia Tech axial compressor research rig. The trace corresponding to the compressor operation in a safe regime...
Journal Articles
Journal:
Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. July 2008, 130(3): 031002.
Published Online: April 1, 2008
...Matthias Schleer; Seung Jin Song; Reza S. Abhari This report intends to shed an insight into the effect of large relative tip clearances on the onset of instability in a highly loaded centrifugal compressor. Time-resolved pressure measurements have been performed along the casing of a scaled-up...
Journal Articles
Journal:
Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. April 2008, 130(2): 021016.
Published Online: March 24, 2008
... pressure measurements are available on the vane at midspan, and on the blade at 50% and 90% spans as well as the rotor shroud. In addition, temperature and pressure measurements obtained inside the coolant cavities of both the vanes and blades are presented. Time-averaged values for the surface pressure...
Journal Articles
Journal:
Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. April 2008, 130(2): 021015.
Published Online: March 24, 2008
... and pressure data, temperature and pressure data from inside the coolant plenums of the vane and rotating blade airfoils are presented. Pressure measurements obtained inside the vane and blade plenum chambers illustrate passing of the wakes and shocks as a result of vane/blade interaction. Part II...
Journal Articles
Journal:
Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. April 2008, 130(2): 021009.
Published Online: February 29, 2008
.... The set of gauzes and honeycomb inserts in the tunnel made the flow uniform before delivering it into the cascade test section through the inlet duct (7). boundary layer turbulence laminar to turbulent transitions gas turbines blades laser Doppler anemometry pressure measurement wakes bubbles...
Journal Articles
Journal:
Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. April 2008, 130(2): 021001.
Published Online: February 12, 2008
... for predicting cascade stagnation-line heat transfer using only surface pressure calculations. Midspan static pressure measurements for Airfoils 2 and 3, and potential flow solution The relations used in this study to assess the airfoil leading edge measurements and calculations of skin friction...
Journal Articles
Jack L. Kerrebrock, Alan H. Epstein, Ali A. Merchant, Gerald R. Guenette, David Parker, Jean-Francois Onnee, Fritz Neumayer, John J. Adamczyk, Aamir Shabbir
Journal:
Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. April 2008, 130(2): 021004.
Published Online: February 12, 2008
... static pressure measurements were taken between the rotors and downstream of the fan to determine the stall behavior. Pressure ratio, mass flow, and efficiency on speed lines from 90% to 102% of the design speed are presented and discussed along with comparison to computational fluid dynamics predictions...
Journal Articles
Accelerating the Calibration of Multihole Pressure Probes by Applying Advanced Computational Methods
Journal:
Journal of Turbomachinery
Article Type: Technical Papers
J. Turbomach. July 2005, 127(3): 425–430.
Published Online: July 8, 2005
... is perfect nor are the pressure measurements. Although a detailed discussion of these and other imperfections and influences is beyond the scope of this paper, it is a fact that flow conditions around the probe tip, measurement uncertainties, and errors, etc., can and do lead to contamination...
Journal Articles
Journal:
Journal of Turbomachinery
Article Type: Technical Papers
J. Turbomach. January 2005, 127(1): 183–190.
Published Online: February 9, 2005
...-53889. Manuscript received by IGTI, October 1, 2003; final revision, March 1, 2004. IGTI Review Chair: A. J. Strazisar. 13 June 2004 01 October 2003 01 March 2004 09 02 2005 heat transfer temperature distribution pressure measurement temperature measurement turbulent...
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