A new transonic turbine cascade model that accurately produces infinite cascade flow conditions with minimal compressor requirements is presented. An inverse design procedure using the Favre-averaged Navier-Stokes equations and turbulence model based on the method of steepest descent was applied to a geometry consisting of a single turbine blade in a passage. For a fixed blade geometry, the passage walls were designed such that the surface isentropic Mach number (SIMN) distribution on the blade in the passage matched the SIMN distribution on the blade in an infinite cascade, while maintaining attached flow along both passage walls. An experimental rig was built that produces realistic flow conditions, and also provides the extensive optical access needed to obtain detailed particle image velocimetry measurements around the blade. Excellent agreement was achieved between computational fluid dynamics (CFD) of the infinite cascade SIMN, CFD of the designed double passage SIMN, and the measured SIMN.
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e-mail: gmlaska@sandia.gov
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July 2005
Technical Papers
Inverse Design of and Experimental Measurements in a Double-Passage Transonic Turbine Cascade Model
G. M. Laskowski,
G. M. Laskowski
Flow Physics and Computation Division & Thermosciences Division, Department of Mechanical Engineering,
e-mail: gmlaska@sandia.gov
Stanford University
, Stanford, CA 94305
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A. Vicharelli,
A. Vicharelli
Flow Physics and Computation Division & Thermosciences Division, Department of Mechanical Engineering,
Stanford University
, Stanford, CA 94305
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G. Medic,
G. Medic
Flow Physics and Computation Division & Thermosciences Division, Department of Mechanical Engineering,
Stanford University
, Stanford, CA 94305
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C. J. Elkins,
C. J. Elkins
Flow Physics and Computation Division & Thermosciences Division, Department of Mechanical Engineering,
Stanford University
, Stanford, CA 94305
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J. K. Eaton,
J. K. Eaton
Flow Physics and Computation Division & Thermosciences Division, Department of Mechanical Engineering,
Stanford University
, Stanford, CA 94305
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P. A. Durbin
P. A. Durbin
Flow Physics and Computation Division & Thermosciences Division, Department of Mechanical Engineering,
Stanford University
, Stanford, CA 94305
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G. M. Laskowski
Flow Physics and Computation Division & Thermosciences Division, Department of Mechanical Engineering,
Stanford University
, Stanford, CA 94305e-mail: gmlaska@sandia.gov
A. Vicharelli
Flow Physics and Computation Division & Thermosciences Division, Department of Mechanical Engineering,
Stanford University
, Stanford, CA 94305
G. Medic
Flow Physics and Computation Division & Thermosciences Division, Department of Mechanical Engineering,
Stanford University
, Stanford, CA 94305
C. J. Elkins
Flow Physics and Computation Division & Thermosciences Division, Department of Mechanical Engineering,
Stanford University
, Stanford, CA 94305
J. K. Eaton
Flow Physics and Computation Division & Thermosciences Division, Department of Mechanical Engineering,
Stanford University
, Stanford, CA 94305
P. A. Durbin
Flow Physics and Computation Division & Thermosciences Division, Department of Mechanical Engineering,
Stanford University
, Stanford, CA 94305J. Turbomach. Jul 2005, 127(3): 619-626 (8 pages)
Published Online: January 12, 2005
Article history
Received:
September 9, 2003
Revised:
January 12, 2005
Citation
Laskowski, G. M., Vicharelli, A., Medic, G., Elkins, C. J., Eaton, J. K., and Durbin, P. A. (January 12, 2005). "Inverse Design of and Experimental Measurements in a Double-Passage Transonic Turbine Cascade Model." ASME. J. Turbomach. July 2005; 127(3): 619–626. https://doi.org/10.1115/1.1929810
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