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Keywords: velocity measurement
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Journal Articles
Journal Articles
Publisher: ASME
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
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2011, 133(2): 021022.
Published Online: October 26, 2010
... the impact of control system reactions on the resulting maximum high pressure turbine speed following a shaft failure event. 26 07 2009 13 08 2009 26 10 2010 26 10 2010 blades compressors failure (mechanical) finite difference methods friction shafts turbines velocity...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2010, 132(4): 041016.
Published Online: May 10, 2010
... are normalized with local streamwise velocity measured at the maximum n / c value shown for each profile. For example at s / c = − 0.125 , profiles are normalized with respect to U ¯ s b ∣ n / c = 0.03 . When this station is located outside of the IGV-wake...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 2010, 132(1): 011013.
Published Online: September 17, 2009
... aerodynamics aerospace components blades flow visualisation pressure measurement turbines velocity measurement Implementation of high-lift airfoils in low-pressure turbine design is an attractive means to reduce engine weight and manufacturing costs. Several studies ( 1 2 3 ) have shown...
Journal Articles
Publisher: ASME
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
Publisher: ASME
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
Publisher: ASME
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
Publisher: ASME
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
Publisher: ASME
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
Publisher: ASME
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
Publisher: ASME
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
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. July 2005, 127(3): 635–645.
Published Online: January 14, 2005
... = 4 mm slot width). A large part of the uncertainty in a quantity determined by averaging a set of samples, such as the time mean velocity measured by an LDA, can be caused by the fact that only a limited number of samples are used to calculate the average. Uncertainties in the mean velocity...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. July 2005, 127(3): 502–506.
Published Online: August 17, 2004
...D. G. Holmberg; T. E. Diller The gas turbine engine combustor generates turbulence that increases heat transfer on downstream turbine blades, but the mechanisms of that heat transfer are not fully understood. In this work, simultaneous time-resolved surface heat flux and velocity measurements have...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. January 2004, 126(1): 212–219.
Published Online: March 26, 2004
... loss. Most of these studies were mainly emphasized on the heat transfer outcome without complementary flow 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...
Journal Articles
Publisher: ASME
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
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. October 2002, 124(4): 670–677.
Published Online: November 7, 2002
... velocities measured immediately downstream of the showerhead, x / d = − 9 , and immediately downstream of the pressure side row, x / d = − 28 , are presented in Fig. 6 . Data at x / d = − 28 were taken between the holes and so were not affected by the coolant flow...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. October 2002, 124(4): 553–563.
Published Online: November 7, 2002
... but also for the development of reliable and accurate computational methods as well. gas turbines wakes rotational flow vortices velocity measurement shear turbulence flow instability 03 June 2002 13 December 2001 07 11 2002 Contributed by the International Gas...