This paper presents the design of, and preliminary results from a new single-stage axial turbine facility developed to investigate the fundamental fluid dynamics of egress-mainstream flow interactions. To the authors’ knowledge this is the only test facility in the world capable of investigating the interaction effects between cavity flows, rim seals and EWC. The design of optical measurement capabilities for future studies, employing volumetric velocimetry and planar laser induced fluorescence are also presented. The fluid-dynamically scaled rig operates at benign pressures and temperatures suited to these techniques and is modular. The facility enables expedient interchange of EWC (integrated into the rotor bling), blade-fillet and rim-seals geometries.
The measurements presented in this paper include: gas concentration effectiveness and swirl measurements on the stator wall and in the wheel-space core; pressure distributions around the nozzle guide vanes at three different spanwise locations; pitchwise static pressure distributions downstream of the nozzle guide vane at four axial locations on the stator platform.
|Title of host publication||Proceedings of the ASME Turbo Expo 2019: Turbine Technical Conference and Exposition|
|Publisher||American Society of Mechanical Engineers (ASME)|
|Number of pages||17|
|Publication status||Published - 17 Jun 2019|
|Event||ASME Turbo Expo 2019 - Arizona, Phoenix, USA United States|
Duration: 17 Jun 2019 → 21 Jun 2019
|Conference||ASME Turbo Expo 2019|
|Country||USA United States|
|Period||17/06/19 → 21/06/19|