Inlet Turbulence and Length Scale Measurements in a Large Scale Transonic Turbine Cascade | Zendy

Doug Thurman | Zendy; Ashlie B. Flegel | Zendy; Paul W. Giel | Zendy

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Inlet Turbulence and Length Scale Measurements in a Large Scale Transonic Turbine Cascade

Author(s) -

Doug Thurman,

Ashlie B. Flegel,

Paul W. Giel

Publication year - 2014

Publication title -

49th aiaa/asme/sae/asee joint propulsion conference

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.2014-3934

Subject(s) - transonic , cascade , turbulence , inlet , scale (ratio) , turbine , aerospace engineering , physics , mechanics , aerodynamics , engineering , mechanical engineering , chemical engineering , quantum mechanics

Constant temperature hotwire anemometry data were acquired to determine the inlet turbulence conditions of a transonic turbine blade linear cascade. Flow conditions and angles were investigated that corresponded to the take-off and cruise conditions of the Variable Speed Power Turbine (VSPT) project and to an Energy Efficient Engine (EEE) scaled rotor blade tip section. Mean and turbulent flowfield measurements including intensity, length scale, turbulence decay, and power spectra were determined for high and low turbulence intensity flows at various Reynolds numbers and spanwise locations. The experimental data will be useful for establishing the inlet boundary conditions needed to validate turbulence models in CFD codes.

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