... (0.314, 0.628, and 0.942). Boundary layer traverses were performed at the nominal trailing edge using a laser Doppler anemometry system and hot films were used to examine the boundary layer behavior along the surface. For every velocity distribution tested, the boundary layer separated in the diffusing...

..., the fluctuations in the adverse pressure gradient on the suction surface depend on the relative phase of the upstream and downstream disturbances, providing an additional stimulus for clocking studies. Time-mean momentum thickness values calculated from laser Doppler anemometry (LDA) traverses performed near...

... measurement laser Doppler anemometry pressure sensors rotors stators turbomachinery vortices wakes axial compressor laser Doppler anemometer periodical unsteady flow field unsteady profile pressure rotor-stator-interaction tip clearance vortex wake negative jet effect wake-tip clearance...

... effects remains constant around the circumference. 05 06 2007 10 09 2007 31 07 2008 blades compressors jets laser Doppler anemometry pressure sensors rotors stators vortices wakes axial compressor laser Doppler anemometer periodical unsteady flow field unsteady...

..., the understanding of flow features and their interaction is crucial. The interaction and mixing of the flow pattern downstream of the impeller are shown using spatially and temporally resolved 3D-velocity data. The measurements have been obtained by using a 3D laser Doppler anemometry system throughout the vaneless...

... with a set of T106 LP turbine blades was subjected to a periodic variation of the downstream pressure field by means of a moving bar system at low-speed conditions. Measurements were taken in the suction surface boundary layer using 2D laser Doppler anemometry, flush-mounted unsteady pressure transducers...

... laser Doppler anemometry laminar to turbulent transitions The unsteady flow field in low-pressure (LP) turbines is governed by a combination of potential and convective interactions 1 . Of these, the convected wakes from upstream blade rows play the most...

...Shou-Shing Hsieh, Sun Yat-Sen Professor of Mechanical and Electro-Mechanical Engineering, Fellow ASME; Hsiang-Jung Chin, Graduate Student Laser-Doppler anemometry has been applied to approximately two-dimensional turbulent air flow in rotating two pass channel with turbulator of rectangular cross...

... and Exhibition, Amsterdam, The Netherlands, June 3–6, 2002. Manuscript received by the IGTI, November 2, 2001. Paper No. 2002-GT-30175. Review Chair: E. Benvenuti. 03 June 2002 02 November 2001 07 11 2002 gas turbines heat transfer film flow flow visualisation laser Doppler...

..., Louisiana, June 4–7, 2001. Manuscript received by the IGTI, October 28, 2000. Paper No. 2001-GT-402. Review Chair: R. A. Natole. 04 June 2001 28 October 2000 10 07 2002 gas turbines heat transfer film flow cooling jets laser Doppler anemometry velocity measurement turbulence...

... cooling for blades as studied by Du et al. 3 and Takeishi et al. 4 . 04 06 2001 03 10 2000 09 04 2002 gas turbines flow visualisation film flow cooling laser Doppler anemometry jets To insure proper flow entering the coolant holes, the interior...

...: H. A. Kidd. 02 06 1997 01 01 1997 11 11 2001 09 04 2002 gas turbines compressors wakes recovery rotors stators modelling laser Doppler anemometry The unsteady process of rotor wake/stator blade row interaction has commonly been described...

... Turning Duct ,” Int. J. Heat Mass Transf. , 44 , No 9 , pp. 1777 – 1787 . Durst, F., Melling, A., and Whitelaw, J. H., 1976, Principles and Practice of Laser-Doppler Anemometry , Academic Press, New York...

..., 2001. Manuscript received by the IGTI, December 7, 2000. Paper No. 2001-GT-404. Review Chair: R. A. Natole. 04 June 2001 07 12 2000 09 04 2002 gas turbines nozzles heat transfer vortices flow simulation laser Doppler anemometry Modern gas...

...Konrad Vogeler,; Ronald Mailach, and; Ingolf Lehmann gas turbines compressors rotational flow vortices vibrations noise sensors laser Doppler anemometry pressure measurement The authors thank Prof. Cumpsty for his critical comments. After the discussion in Munich (ASME Turbo...

..., A., Founti, M., Mathioudakis K., and Papailiou, K., 1996, “Evaluation of Beam Refraction Effects in a 3D Laser Doppler Anemometry System for Turbomachinery Applications,” in: Measurement Science and Technology , Vol. 7, pp. 922–931. Durrett , R. P. , Gould , R. D. , Stevenson , W. H...

... is similar to that observed in cascades. Part II of this paper covers the velocity and the turbulence fields. gas turbines rotors pressure control vortices laser Doppler anemometry loss measurement The effects of the clearance flow have been fully investigated in turbine cascades. However...

... by the International Gas Turbine Institute February 2000. Paper No. 2000-GT-477. Review Chair: D. Ballal. 08 May 2000 01 February 2000 gas turbines rotors laser Doppler anemometry velocity measurement turbulence vortices flow measurement This paper is Part II of a two-part paper...

..., Germany, May 8–11, 2000. Manuscript received by the International Gas Turbine Institute February 2000. Paper No. 2000-GT-470. Review Chair: D. Ballal. 08 May 2000 01 February 2000 gas turbines pulsatile flow rotors velocity measurement laser Doppler anemometry pipe flow flow...

... turbines heat transfer laser Doppler anemometry stators vortices turbulence convection Along a turbine airfoil surface, elevated convective heat transfer coefficients occur as a result of high turbulence levels exiting a combustor in a gas turbine engine. The platform of an airfoil (endwall...