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    Understanding Thermal Unsteadiness in Engine Representative Flows and Improved Methodologies for Derived Heat Transfer Calculations Using Thin-Film Gauges 

    Source: Journal of Turbomachinery:;2023:;volume( 146 ):;issue: 002:;page 21009-1
    Author(s): Singh, Deepanshu; Beard, Paul F.; Cardwell, David; Chana, Kam S.
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: The Oxford Turbine Research Facility (OTRF) is a high-speed rotating transient test facility, which allows unsteady aerodynamic and heat transfer measurements at engine representative conditions. In addition, a variety of ...
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    Design of a Nonreacting Combustor Simulator With Swirl and Temperature Distortion With Experimental Validation 

    Source: Journal of Engineering for Gas Turbines and Power:;2014:;volume( 136 ):;issue: 008:;page 81501
    Author(s): Hall, Benjamin F.; Chana, Kam S.; Povey, Thomas
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Nonuniform combustor outlet flows have been demonstrated to have significant impact on the first and second stage turbine aerothermal performance. Richburn combustors, which generally have pronounced temperature profiles ...
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    Unsteady Flow Phenomena in Turbine Rim Seals 

    Source: Journal of Engineering for Gas Turbines and Power:;2017:;volume( 139 ):;issue: 003:;page 32501
    Author(s): Beard, Paul F.; Gao, Feng; Chana, Kam S.; Chew, John
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: While turbine rim sealing flows are an important aspect of turbomachinery design, affecting turbine aerodynamic performance and turbine disk temperatures, the present understanding and predictive capability for such flows ...
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    Investigation of a HighPressure Turbine Stage in a HighSpeed Rotating Transient Test Facility for Rotor Tip Study and a Parametric Study for Improved Heat Transfer Calculation 

    Source: Journal of Engineering for Gas Turbines and Power:;2022:;volume( 144 ):;issue: 012:;page 121020
    Author(s): Singh, Deepanshu;Beard, Paul F.;Cardwell, David;Chana, Kam S.
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: The first part of the paper presents commissioning of a singlestage highpressure (HP) turbine employed in a series of extensive experiments to study the aerodynamics and heat transfer on the rotor surface and casing liner. ...
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    Impact of Rotor-Casing Effusion Cooling on Turbine Performance and Operating Point: An Experimental, Computational, and Theoretical Study 

    Source: Journal of Turbomachinery:;2021:;volume( 143 ):;issue: 003:;page 031005-1
    Author(s): Adams, Maxwell G.; Adami, Paolo; Collins, Matthew; Beard, Paul F.; Chana, Kam S.; Povey, Thomas
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: It is known that a secondary effect of rotor-casing effusion cooling is to modify and potentially spoil the rotor over-tip leakage flow. Studies have shown both positive and negative impacts on high-pressure (HP) stage ...
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    An Aerodynamic Investigation of a High-Pressure Turbine Using Rotor Casing Static Pressure Measurements at Engine Representative Conditions With Different Tip Designs, Tip Gaps, and Inlet Temperature Profiles 

    Source: Journal of Turbomachinery:;2025:;volume( 147 ):;issue: 006:;page 61017-1
    Author(s): Singh, Deepanshu; Beard, Paul F.; Cardwell, David; Staelens, Vianney; Bahulekar, Pratik; Stokes, Mark; Bather, Simon; Chana, Kam S.
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: A rotating high-pressure (HP) turbine, in modern aircraft engines, is subjected to high cyclic thermal and mechanical loads. Shroudless turbines experience high heat loads on the rotor tip and casing, which makes them one ...
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    Commissioning of a Combined Hot-Streak and Swirl Profile Generator in a Transonic Turbine Test Facility 

    Source: Journal of Engineering for Gas Turbines and Power:;2020:;volume( 142 ):;issue: 003:;page 031008-1
    Author(s): Adams, Maxwell G.; Povey, Thomas; Hall, Benjamin F.; Cardwell, David N.; Chana, Kam S.; Beard, Paul F.
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: By enhancing the premixing of fuel and air prior to combustion, recently developed lean-burn combustor systems have led to reduced NOx and particulate emissions in gas turbines. Lean-burn combustor exit flows are typically ...
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    Effect of a Combined Hot-Streak and Swirl Profile on Cooled 1.5-Stage Turbine Aerodynamics: An Experimental and Computational Study 

    Source: Journal of Turbomachinery:;2021:;volume( 143 ):;issue: 002:;page 021011-1
    Author(s): Adams, Maxwell G.; Beard, Paul F.; Stokes, Mark R.; Wallin, Fredrik; Chana, Kam S.; Povey, Thomas
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Recently developed lean-burn combustors offer reduced NOx emissions for gas turbines. The flow at exit of lean-burn combustors is dominated by hot streaks and residual swirl, which have been shown—individually—to impact ...
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