This paper presents experimental measurements and computational predictions of surface and end wall heat transfer for a high-pressure (HP) nozzle guide vane operating as part of a full HP turbine stage in an annular rotating turbine facility, with and without inlet temperature distortion (hot streaks). A detailed aerodynamic survey of the vane surface is also presented. The test turbine was the unshrouded MT1 turbine, installed in the Turbine Test Facility (previously called Isentropic Light Piston Facility) at QinetiQ, Farnborough, UK. This is a short-duration facility, which simulates engine-representative , Re, nondimensional speed, and gas-to-wall temperature ratio at the turbine inlet. The facility has recently been upgraded to incorporate an advanced second-generation combustor simulator, capable of simulating well-defined, aggressive temperature profiles in both the radial and circumferential directions. This work forms part of the pan-European research program, TATEF II. Measurements of HP vane and end wall heat transfer obtained with inlet temperature distortion are compared with results for uniform inlet conditions. Steady and unsteady computational fluid dynamics (CFD) predictions have also been conducted on vane and end wall surfaces using the Rolls-Royce CFD code HYDRA to complement the analysis of experimental results. The heat transfer measurements presented in this paper are the first of their kind in that the temperature distortion is representative of an extreme cycle point, and was simulated with good periodicity and with well-defined boundary conditions in the test turbine.
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e-mail: imran.qureshi@eng.ox.ac.uk
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March 2011
Research Papers
Effect of Simulated Combustor Temperature Nonuniformity on HP Vane and End Wall Heat Transfer: An Experimental and Computational Investigation
Imran Qureshi,
Imran Qureshi
Department of Engineering Science,
e-mail: imran.qureshi@eng.ox.ac.uk
University of Oxford
, Parks Road, Oxford OX1 3PJ, UK
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Arrigo Beretta,
Arrigo Beretta
Turbine Sub-systems,
Rolls-Royce PLC
, Moor Lane, Derby DE24 8BJ, UK
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Thomas Povey
Thomas Povey
Department of Engineering Science,
University of Oxford
, Parks Road, Oxford OX1 3PJ, UK
Search for other works by this author on:
Imran Qureshi
Department of Engineering Science,
University of Oxford
, Parks Road, Oxford OX1 3PJ, UKe-mail: imran.qureshi@eng.ox.ac.uk
Arrigo Beretta
Turbine Sub-systems,
Rolls-Royce PLC
, Moor Lane, Derby DE24 8BJ, UK
Thomas Povey
Department of Engineering Science,
University of Oxford
, Parks Road, Oxford OX1 3PJ, UKJ. Eng. Gas Turbines Power. Mar 2011, 133(3): 031901 (13 pages)
Published Online: November 10, 2010
Article history
Received:
April 29, 2010
Revised:
May 6, 2010
Online:
November 10, 2010
Published:
November 10, 2010
Citation
Qureshi, I., Beretta, A., and Povey, T. (November 10, 2010). "Effect of Simulated Combustor Temperature Nonuniformity on HP Vane and End Wall Heat Transfer: An Experimental and Computational Investigation." ASME. J. Eng. Gas Turbines Power. March 2011; 133(3): 031901. https://doi.org/10.1115/1.4002039
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