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RISExperimental Investigation on the Time–Space Evolution of a Laminar Separation Bubble by Proper Orthogonal Decomposition and Dynamic Mode Decomposition
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A time-resolved particle image velocimetry (TR-PIV) system has been employed to investigate a laminar separation bubble which is induced by a strong adverse pressure gradient typical of ultrahigh-lift low-pressure turbine ...
Effects of Ribbed Surfaces on Profile Losses of Low-Pressure Turbine Blades
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this work, streamwise oriented riblets were installed on a flat plate exposed to an adverse pressure gradient typical of low-pressure turbine (LPT) blade and, successively, on the suction side of an LPT cascade operating ...
On the Identification and Decomposition of the Unsteady Losses in a Turbine Cascade
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The present paper describes the application of proper orthogonal decomposition (POD) to large eddy simulation (LES) of the T106A low-pressure-turbine profile with unsteady incoming wakes at two different flow conditions. ...
Recognition of Structures Leading to Transition in a Low-Pressure Turbine Cascade: Effect of Reduced Frequency
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The boundary layer developing over the suction side of a low-pressure turbine cascade operating under unsteady inflow conditions has been experimentally investigated. Time-resolved particle image velocimetry (PIV) measurements ...