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    Aerodynamic Performance of Turbine Center Frames With Purge Flows—Part II: The Influence of Individual Hub and Tip Purge Flows 

    Source: Journal of Turbomachinery:;2018:;volume 140:;issue 006:;page 61010
    Author(s): Zerobin, Stefan; Aldrian, Christian; Peters, Andreas; Heitmeir, Franz; Göttlich, Emil
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: The aerodynamic behavior of turbine center frame (TCF) ducts under the presence of high-pressure turbine (HPT) purge flows was experimentally investigated in this two-part paper. While the first part of the paper demonstrated ...
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    The Influence of Combustor Hot Streaks on the Aerodynamic Performance of a Turbine Center Frame 

    Source: Journal of Turbomachinery:;2022:;volume( 145 ):;issue: 002:;page 21009-1
    Author(s): Badžek, Ena; Patinios, Marios; Farisco, Federica; Heitmeir, Franz; Göttlich, Emil
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: This paper investigates the influence of combustor temperature non-uniformities on modern engine turbine center frames (TCFs). Due to their position in an engine, coupled with the trends of more aggressive designs, increased ...
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    The Interaction of Main Stream Flow and Cavity Flows in Turbine Center Frames and Turbine Vane Frames 

    Source: Journal of Engineering for Gas Turbines and Power:;2022:;volume( 145 ):;issue: 002:;page 21027-1
    Author(s): Merli, Filippo; Hafizovic, Asim; Krajnc, Nicolas; Schien, Malte; Peters, Andreas; Heitmeir, Franz; Göttlich, Emil
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: This paper focuses on the interaction between the last high-pressure turbine (HPT) stage purge flows and the intermediate turbine duct (ITD) in modern turbofan engines. Two state-of-the-art ITD concepts are analyzed in ...
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    Impact of High-Pressure-Turbine Purge Flow on the Evolution of Turbulence in a Turbine Vane Frame 

    Source: Journal of Turbomachinery:;2024:;volume( 146 ):;issue: 008:;page 81005-1
    Author(s): Hafizovic, Asim; Merli, Filippo; Krajnc, Nicolas; Schien, Malte; Peters, Andreas; Heitmeir, Franz; Göttlich, Emil
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: This paper describes the measurement and postprocessing of turbulence data. The experiments were carried out in a two-stage, two-spool transonic turbine test rig at the Institute for Thermal Turbomachinery and Machine ...
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    Comparison of the Aerodynamics of Acoustically Designed Exit Guide Vanes and a State of the Art Exit Guide Vane 

    Source: Journal of Turbomachinery:;2015:;volume( 137 ):;issue: 004:;page 41002
    Author(s): Marn, Andreas; Broszat, Dominik; Selic, Thorsten; Schأ¶nleitner, Florian; Heitmeir, Franz
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Within previous EU projects, possible modifications to the engine architecture have been investigated, which would allow for an optimized aerodynamic or acoustic design of the exit guide vanes (EGVs) of the turbine exit ...
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    On Turbulence Measurements and Analyses in a Two-Stage Two-Spool Turbine Rig 

    Source: Journal of Turbomachinery:;2017:;volume( 139 ):;issue: 007:;page 71008
    Author(s): Bauinger, Sabine; Behre, Stephan; Lengani, Davide; Guendogdu, Yavuz; Heitmeir, Franz; Goettlich, Emil
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Since the experiment in turbulence research is of very high importance for evaluating turbulence hypothesis, turbulence measurements were carried out in a two-stage two-spool transonic turbine test rig at the Institute for ...
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    Development of a Turning Mid Turbine Frame With Embedded Design—Part I: Design and Steady Measurements 

    Source: Journal of Turbomachinery:;2014:;volume( 136 ):;issue: 007:;page 71008
    Author(s): Spataro, Rosario; Gأ¶ttlich, Emil; Lengani, Davide; Faustmann, Christian; Heitmeir, Franz
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: The paper presents a new setup for the twostage twospool facility located at the Institute for Thermal Turbomachinery and Machine Dynamics (ITTM) of Graz University of Technology. The rig was designed in order to simulate ...
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    Development of a Turning Mid Turbine Frame With Embedded Design—Part II: Unsteady Measurements 

    Source: Journal of Turbomachinery:;2014:;volume( 136 ):;issue: 007:;page 71012
    Author(s): Spataro, Rosario; Gأ¶ttlich, Emil; Lengani, Davide; Faustmann, Christian; Heitmeir, Franz
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: This paper, the second of two parts, presents a new setup for the twostage twospool facility located at the Institute for Thermal Turbomachinery and Machine Dynamics (ITTM) of Graz University of Technology. The rig was ...
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    Aerodynamic Performance of Turbine Center Frames With Purge Flows—Part I: The Influence of Turbine Purge Flow Rates 

    Source: Journal of Turbomachinery:;2018:;volume 140:;issue 006:;page 61009
    Author(s): Zerobin, Stefan; Peters, Andreas; Bauinger, Sabine; Bhadravati Ramesh, Ashwini; Steiner, Michael; Heitmeir, Franz; Göttlich, Emil
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: This two-part paper deals with the influence of high-pressure turbine (HPT) purge flows on the aerodynamic performance of turbine center frames (TCF). Measurements were carried out in a product-representative one and a ...
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    Experimental Investigation of Boundary Layer Relaminarization in Accelerated Flow 

    Source: Journal of Fluids Engineering:;2018:;volume( 140 ):;issue: 008:;page 81201
    Author(s): Bader, Pascal; Pschernig, Manuel; Sanz, Wolfgang; Woisetschläger, Jakob; Heitmeir, Franz; Meile, Walter; Brenn, Günter
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Flow in turbomachines is generally highly turbulent. Nonetheless, boundary layers may exhibit laminar-to-turbulent transition, and relaminarization of the turbulent flow may also occur. The state of flow of the boundary ...
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