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Keywords: velocity measurement
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Journal Articles
Journal Articles
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
Article Type: Research Papers
J. Turbomach. April 2011, 133(2): 021022.
Published Online: October 26, 2010
... methods friction shafts turbines velocity measurement The understanding of the compressor prestall and poststall (rotating stall and surge) operations is fundamental for engine certification. For the engine certification the manufacturer has to demonstrate among other things stable...
Journal Articles
Article Type: Research Papers
J. Turbomach. October 2010, 132(4): 041016.
Published Online: May 10, 2010
... with the magnitude of the perturbation velocity 25 11 2008 01 03 2009 10 05 2010 10 05 2010 blades integral equations rotors turbulence velocity measurement wakes In multistage turbomachines, the evolution of the rotor boundary layer (BL) is affected by interactions...
Journal Articles
Journal Articles
Article Type: Research Papers
J. Turbomach. January 2010, 132(1): 011009.
Published Online: September 16, 2009
... solver, CEDRE . 06 08 2008 09 02 2009 16 09 2009 aerodynamics finite volume methods flow measurement flow visualisation jets Navier-Stokes equations velocity measurement State-of-the-art gas turbine engines are designed to operate at turbine inlet temperatures over...
Journal Articles
Article Type: Research Papers
J. Turbomach. October 2009, 131(4): 041019.
Published Online: July 13, 2009
... of the feed oil, are quantified and methods for achieving the optimum design are discussed. 03 09 2008 24 10 2008 13 07 2009 aerospace engines gears lubricating oils torque measurement velocity measurement vortices Gear windage is the phenomenon where fluid near a gear...
Journal Articles
Article Type: Research Papers
J. Turbomach. April 2009, 131(2): 021019.
Published Online: February 3, 2009
... between VGJ actuation and the wake passing was optimized. Both steady state C p and phase-locked velocity measurements confirm that the optimal combination of wakes and jets yields the smallest separation. 14 08 2007 29 08 2007 03 02 2009 blades flow control flow instability flow...
Journal Articles
Article Type: Research Papers
J. Turbomach. October 2008, 130(4): 041008.
Published Online: July 31, 2008
... considered at blowing ratios of 0.25, 0.50, and 1.0 with a steady freestream and with wake Strouhal numbers of 0.15, 0.30, and 0.60. Temperature measurements were made using an infrared camera, thermocouples, and constant current (cold-wire) anemometry. Hot-wire anemometry was used for velocity measurements...
Journal Articles
Article Type: Technical Papers
J. Turbomach. April 2007, 129(2): 232–246.
Published Online: May 31, 2006
... for velocity measurements. The local film-cooling effectiveness was calculated based on the measured temperatures, and the results were compared to baseline cases with continuous blowing. Phase-locked flow temperature fields were determined from cold-wire surveys. Pulsing at high frequencies helped to improve...
Journal Articles
Article Type: Technical Papers
J. Turbomach. January 2005, 127(1): 84–90.
Published Online: February 9, 2005
...Tarek Meakhail; Seung O. Park This paper reports velocity measurement data in the interaction region between the impeller and vaned diffuser and the results of numerical flow simulation of the whole machine (impeller, vaned diffuser and volute) of a single stage centrifugal fan. Two-dimensional...
Journal Articles
Article Type: Technical Papers
J. Turbomach. January 2006, 128(1): 141–149.
Published Online: February 1, 2005
.... The three dimensional flow structures are revealed. 01 10 2004 01 02 2005 cooling flow instability wind tunnels coolants velocity measurement blades turbines test facilities film cooling flow structure density ratio blowing ratio PIV The main interest...
Journal Articles
Article Type: Technical Papers
J. Turbomach. July 2005, 127(3): 635–645.
Published Online: January 14, 2005
... jets cooling velocity measurement Navier-Stokes equations gas turbines thermal stresses turbulence boundary layers bubbles Film cooling is the introduction of a secondary fluid (coolant or injected fluid) at one or more discrete locations along a surface exposed to a high-temperature...
Journal Articles
Journal Articles
Journal Articles
Article Type: Technical Papers
J. Turbomach. January 2004, 126(1): 212–219.
Published Online: March 26, 2004
... dynamic investigations. The reason is partly that measuring fluid flow in a rotating coolant duct is a challenging. computational fluid dynamics velocity measurement pipe flow laser velocimetry Doppler measurement flow measurement vortices convection 16 June 2003 01 Dec 2002...
Journal Articles
Article Type: Technical Papers
J. Turbomach. July 2003, 125(3): 565–574.
Published Online: August 27, 2003
.... Paper No. 2002-GT-30201. Review Chair: E. Benvenuti. 03 June 2002 17 January 2002 27 08 2003 heat transfer pressure measurement pipe flow rotational flow velocity measurement flow measurement temperature measurement friction jets convection shear turbulence...
Journal Articles
Article Type: Technical Papers
J. Turbomach. October 2002, 124(4): 670–677.
Published Online: November 7, 2002
... by the IGTI, November 2, 2001. Paper No. 2002-GT-30174. Review Chair: E. Benvenuti. 03 June 2002 02 November 2001 07 11 2002 gas turbines heat transfer cooling film flow flow visualisation velocity measurement turbulence jets Film cooling of a turbine vane typically...
Journal Articles
Journal Articles
Article Type: Technical Papers
J. Turbomach. October 2002, 124(4): 553–563.
Published Online: November 7, 2002
... – 245 . Sridhar , G. , and Katz , J. , 1995 , “ Drag and Lift Forces on Microscopic Bubbles Entrained by a Vortex ,” Phys. Fluids , 7 , pp. 389 – 399 . gas turbines wakes rotational flow vortices velocity measurement shear turbulence flow instability The unsteady...