Design, test, and evaluation of a transonic axial compressor rotor with splitter blades
Hobson, Garth V.
Gannon, Anthony J.
MetadataShow full item record
A new design procedure was developed and documented that uses commercial-off-the-shelf software (MATLAB, SolidWorks, and ANSYS-CFX) for the geometric rendering and analysis of a transonic axial compressor rotor with splitter blades. Predictive numerical simulations were conducted and experimental data were collected at the NPS TPL utilizing the Transonic Compressor Rig. This study advanced the understanding of splitter blade geometry, placement, and performance benefits. In particular, it was determined that moving the splitter blade forward in the passage between the main blades, which was a departure from the trends demonstrated in the few available previous transonic axial compressor splitter blade studies, increased the mass flow range with no loss in overall performance. With a large 0.91 mm (0.036 in) tip clearance, to preserve the integrity of the rotor, the experimentally measured peak total-to-total pressure ratio was 1.69 and the peak total-to-total isentropic efficiency was 72 percent at 100 percent design speed. Additionally, a higher than predicted 7.5 percent mass flow rate range was experimentally measured, which would make for easier engine control if this concept were to be included in an actual gas turbine engine.
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
Fan, Yue Sang (Monterey, California. Naval Postgraduate School, 1995-03);Viscous drag in the transonic regime over an axi-symmetric body with a unique aft contour surface is investigated. The forebody is composed of an arbitrary ellipsoid. The unique aft contour surface has been obtained by an ...
Platzer, Max Franz (Monterey, California. Naval Postgraduate School, 1972-12); NPS-57EL721201AThe report presents a brief summary of the past progress, current status and development trends of transonic aerodynamics. The main methods to compute steady and unsteady transonic flows are reviewed. Also, recent advances ...
Sarpkaya, Turgut (Monterey, California. Naval Postgraduate School, 1972-07-17); NPS-59SL72071AThe results of a comprehensive study of the comparative performance characteristics of geometrically similar vented and unvented bistable amplifiers, together with their actual dimensions, are presented. The Reynolds number ...